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<a href="#func-members">Functions</a>  </div>
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<div class="title">High level functions to handle apertures</div>  </div>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:gaae76b7d276ff9457bf8b0b5afa14f5df"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#gaae76b7d276ff9457bf8b0b5afa14f5df">cpl_apertures_delete</a> (cpl_apertures *self)</td></tr>
<tr class="memdesc:gaae76b7d276ff9457bf8b0b5afa14f5df"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destructor for cpl_apertures.  <a href="#gaae76b7d276ff9457bf8b0b5afa14f5df">More...</a><br /></td></tr>
<tr class="separator:gaae76b7d276ff9457bf8b0b5afa14f5df"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga1513c3b99639d0b1ec6d10fdfa6e53b7"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#ga1513c3b99639d0b1ec6d10fdfa6e53b7">cpl_apertures_dump</a> (const cpl_apertures *self, FILE *fp)</td></tr>
<tr class="memdesc:ga1513c3b99639d0b1ec6d10fdfa6e53b7"><td class="mdescLeft">&#160;</td><td class="mdescRight">Dump a cpl_apertures to an opened file pointer.  <a href="#ga1513c3b99639d0b1ec6d10fdfa6e53b7">More...</a><br /></td></tr>
<tr class="separator:ga1513c3b99639d0b1ec6d10fdfa6e53b7"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gab5609d48472fa576591e42868b7d8a52"><td class="memItemLeft" align="right" valign="top">cpl_apertures *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#gab5609d48472fa576591e42868b7d8a52">cpl_apertures_extract</a> (const cpl_image *self, const cpl_vector *sigmas, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> *pisigma)</td></tr>
<tr class="memdesc:gab5609d48472fa576591e42868b7d8a52"><td class="mdescLeft">&#160;</td><td class="mdescRight">Simple detection of apertures in an image.  <a href="#gab5609d48472fa576591e42868b7d8a52">More...</a><br /></td></tr>
<tr class="separator:gab5609d48472fa576591e42868b7d8a52"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga6d1a9d2831508426141c99b425e9dcc6"><td class="memItemLeft" align="right" valign="top">cpl_apertures *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#ga6d1a9d2831508426141c99b425e9dcc6">cpl_apertures_extract_mask</a> (const cpl_image *self, const cpl_mask *selection)</td></tr>
<tr class="memdesc:ga6d1a9d2831508426141c99b425e9dcc6"><td class="mdescLeft">&#160;</td><td class="mdescRight">Simple apertures creation from a user supplied selection mask.  <a href="#ga6d1a9d2831508426141c99b425e9dcc6">More...</a><br /></td></tr>
<tr class="separator:ga6d1a9d2831508426141c99b425e9dcc6"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga35155a7e7eac69da19b08aa1cb112168"><td class="memItemLeft" align="right" valign="top">cpl_apertures *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#ga35155a7e7eac69da19b08aa1cb112168">cpl_apertures_extract_sigma</a> (const cpl_image *self, double sigma)</td></tr>
<tr class="memdesc:ga35155a7e7eac69da19b08aa1cb112168"><td class="mdescLeft">&#160;</td><td class="mdescRight">Simple apertures detection in an image using a provided sigma.  <a href="#ga35155a7e7eac69da19b08aa1cb112168">More...</a><br /></td></tr>
<tr class="separator:ga35155a7e7eac69da19b08aa1cb112168"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga81a3c7ab107e852bba7751b23d551095"><td class="memItemLeft" align="right" valign="top">cpl_apertures *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#ga81a3c7ab107e852bba7751b23d551095">cpl_apertures_extract_window</a> (const cpl_image *self, const cpl_vector *sigmas, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> llx, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> lly, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> urx, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ury, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> *pisigma)</td></tr>
<tr class="memdesc:ga81a3c7ab107e852bba7751b23d551095"><td class="mdescLeft">&#160;</td><td class="mdescRight">Simple detection of apertures in an image window.  <a href="#ga81a3c7ab107e852bba7751b23d551095">More...</a><br /></td></tr>
<tr class="separator:ga81a3c7ab107e852bba7751b23d551095"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga873b5ec3377bc7135c4845c04a5fbe54"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#ga873b5ec3377bc7135c4845c04a5fbe54">cpl_apertures_get_bottom</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:ga873b5ec3377bc7135c4845c04a5fbe54"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the bottommost y position in an aperture.  <a href="#ga873b5ec3377bc7135c4845c04a5fbe54">More...</a><br /></td></tr>
<tr class="separator:ga873b5ec3377bc7135c4845c04a5fbe54"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gad58c1861ea0426f8be26d8bb1770c4b4"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#gad58c1861ea0426f8be26d8bb1770c4b4">cpl_apertures_get_bottom_x</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:gad58c1861ea0426f8be26d8bb1770c4b4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the x position of the bottommost y position in an aperture.  <a href="#gad58c1861ea0426f8be26d8bb1770c4b4">More...</a><br /></td></tr>
<tr class="separator:gad58c1861ea0426f8be26d8bb1770c4b4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gae35a53d2a8738239f8d380a0b227d7ea"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#gae35a53d2a8738239f8d380a0b227d7ea">cpl_apertures_get_centroid_x</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:gae35a53d2a8738239f8d380a0b227d7ea"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the X-centroid of an aperture.  <a href="#gae35a53d2a8738239f8d380a0b227d7ea">More...</a><br /></td></tr>
<tr class="separator:gae35a53d2a8738239f8d380a0b227d7ea"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga8928b1b6e486297304bbbce1b31db25c"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#ga8928b1b6e486297304bbbce1b31db25c">cpl_apertures_get_centroid_y</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:ga8928b1b6e486297304bbbce1b31db25c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the Y-centroid of an aperture.  <a href="#ga8928b1b6e486297304bbbce1b31db25c">More...</a><br /></td></tr>
<tr class="separator:ga8928b1b6e486297304bbbce1b31db25c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gac3af1c12b614d0339fba41c9e99d296f"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#gac3af1c12b614d0339fba41c9e99d296f">cpl_apertures_get_flux</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:gac3af1c12b614d0339fba41c9e99d296f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the flux of an aperture.  <a href="#gac3af1c12b614d0339fba41c9e99d296f">More...</a><br /></td></tr>
<tr class="separator:gac3af1c12b614d0339fba41c9e99d296f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gabac3029e5f7d8eff821fe204c8ae98e6"><td class="memItemLeft" align="right" valign="top">cpl_bivector *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#gabac3029e5f7d8eff821fe204c8ae98e6">cpl_apertures_get_fwhm</a> (const cpl_image *self, const cpl_apertures *aperts)</td></tr>
<tr class="memdesc:gabac3029e5f7d8eff821fe204c8ae98e6"><td class="mdescLeft">&#160;</td><td class="mdescRight">Compute FWHM values in x and y for a list of apertures.  <a href="#gabac3029e5f7d8eff821fe204c8ae98e6">More...</a><br /></td></tr>
<tr class="separator:gabac3029e5f7d8eff821fe204c8ae98e6"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga03ffb5f3639aa1dcb6f44e80abbc800f"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#ga03ffb5f3639aa1dcb6f44e80abbc800f">cpl_apertures_get_left</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:ga03ffb5f3639aa1dcb6f44e80abbc800f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the leftmost x position in an aperture.  <a href="#ga03ffb5f3639aa1dcb6f44e80abbc800f">More...</a><br /></td></tr>
<tr class="separator:ga03ffb5f3639aa1dcb6f44e80abbc800f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga878ca6aab1f65cd1741407ba030c3de4"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#ga878ca6aab1f65cd1741407ba030c3de4">cpl_apertures_get_left_y</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:ga878ca6aab1f65cd1741407ba030c3de4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the y position of the leftmost x position in an aperture.  <a href="#ga878ca6aab1f65cd1741407ba030c3de4">More...</a><br /></td></tr>
<tr class="separator:ga878ca6aab1f65cd1741407ba030c3de4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga63d457d77390f54804e398c997806aed"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#ga63d457d77390f54804e398c997806aed">cpl_apertures_get_max</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:ga63d457d77390f54804e398c997806aed"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the maximum value of an aperture.  <a href="#ga63d457d77390f54804e398c997806aed">More...</a><br /></td></tr>
<tr class="separator:ga63d457d77390f54804e398c997806aed"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gafb411aa849344c92ce0b4e6376faa0b1"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#gafb411aa849344c92ce0b4e6376faa0b1">cpl_apertures_get_max_x</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:gafb411aa849344c92ce0b4e6376faa0b1"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the average X-position of an aperture.  <a href="#gafb411aa849344c92ce0b4e6376faa0b1">More...</a><br /></td></tr>
<tr class="separator:gafb411aa849344c92ce0b4e6376faa0b1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaef0b45b25cf7af68c7a14486a9e99691"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#gaef0b45b25cf7af68c7a14486a9e99691">cpl_apertures_get_max_y</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:gaef0b45b25cf7af68c7a14486a9e99691"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the average Y-position of an aperture.  <a href="#gaef0b45b25cf7af68c7a14486a9e99691">More...</a><br /></td></tr>
<tr class="separator:gaef0b45b25cf7af68c7a14486a9e99691"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gad0681d2aec939ba69ab2a5d439b651c2"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#gad0681d2aec939ba69ab2a5d439b651c2">cpl_apertures_get_maxpos_x</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:gad0681d2aec939ba69ab2a5d439b651c2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the X-position of the aperture maximum value.  <a href="#gad0681d2aec939ba69ab2a5d439b651c2">More...</a><br /></td></tr>
<tr class="separator:gad0681d2aec939ba69ab2a5d439b651c2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gab5c9a70198e1c418fc67c16d8a5b9d0d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#gab5c9a70198e1c418fc67c16d8a5b9d0d">cpl_apertures_get_maxpos_y</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:gab5c9a70198e1c418fc67c16d8a5b9d0d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the Y-position of the aperture maximum value.  <a href="#gab5c9a70198e1c418fc67c16d8a5b9d0d">More...</a><br /></td></tr>
<tr class="separator:gab5c9a70198e1c418fc67c16d8a5b9d0d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga9b8265f48ac3032673b9346c6c9244c1"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#ga9b8265f48ac3032673b9346c6c9244c1">cpl_apertures_get_mean</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:ga9b8265f48ac3032673b9346c6c9244c1"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the mean value of an aperture.  <a href="#ga9b8265f48ac3032673b9346c6c9244c1">More...</a><br /></td></tr>
<tr class="separator:ga9b8265f48ac3032673b9346c6c9244c1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaee46f84fea5ebe9396e94bcfc192456b"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#gaee46f84fea5ebe9396e94bcfc192456b">cpl_apertures_get_median</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:gaee46f84fea5ebe9396e94bcfc192456b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the median value of an aperture.  <a href="#gaee46f84fea5ebe9396e94bcfc192456b">More...</a><br /></td></tr>
<tr class="separator:gaee46f84fea5ebe9396e94bcfc192456b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaaac09bd4aaf54044508ad78a2a4a0753"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#gaaac09bd4aaf54044508ad78a2a4a0753">cpl_apertures_get_min</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:gaaac09bd4aaf54044508ad78a2a4a0753"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the minimum value of an aperture.  <a href="#gaaac09bd4aaf54044508ad78a2a4a0753">More...</a><br /></td></tr>
<tr class="separator:gaaac09bd4aaf54044508ad78a2a4a0753"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga08009cd9868547ba37a7b63b63266455"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#ga08009cd9868547ba37a7b63b63266455">cpl_apertures_get_minpos_x</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:ga08009cd9868547ba37a7b63b63266455"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the X-position of the aperture minimum value.  <a href="#ga08009cd9868547ba37a7b63b63266455">More...</a><br /></td></tr>
<tr class="separator:ga08009cd9868547ba37a7b63b63266455"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga1ed6db1d434598ff001b2c0a63f60029"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#ga1ed6db1d434598ff001b2c0a63f60029">cpl_apertures_get_minpos_y</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:ga1ed6db1d434598ff001b2c0a63f60029"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the Y-position of the aperture minimum value.  <a href="#ga1ed6db1d434598ff001b2c0a63f60029">More...</a><br /></td></tr>
<tr class="separator:ga1ed6db1d434598ff001b2c0a63f60029"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga7981e61f1be7e28cab72b38965fc5c0b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#ga7981e61f1be7e28cab72b38965fc5c0b">cpl_apertures_get_npix</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:ga7981e61f1be7e28cab72b38965fc5c0b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the number of pixels of an aperture.  <a href="#ga7981e61f1be7e28cab72b38965fc5c0b">More...</a><br /></td></tr>
<tr class="separator:ga7981e61f1be7e28cab72b38965fc5c0b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga82d10792f91f7065eb026289be126c64"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#ga82d10792f91f7065eb026289be126c64">cpl_apertures_get_pos_x</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:ga82d10792f91f7065eb026289be126c64"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the average X-position of an aperture.  <a href="#ga82d10792f91f7065eb026289be126c64">More...</a><br /></td></tr>
<tr class="separator:ga82d10792f91f7065eb026289be126c64"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gac9bc0b6dc953d2c328815215ea535def"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#gac9bc0b6dc953d2c328815215ea535def">cpl_apertures_get_pos_y</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:gac9bc0b6dc953d2c328815215ea535def"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the average Y-position of an aperture.  <a href="#gac9bc0b6dc953d2c328815215ea535def">More...</a><br /></td></tr>
<tr class="separator:gac9bc0b6dc953d2c328815215ea535def"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gacfc9f4ca2ef657f84bec2690dffbccfa"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#gacfc9f4ca2ef657f84bec2690dffbccfa">cpl_apertures_get_right</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:gacfc9f4ca2ef657f84bec2690dffbccfa"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the rightmost x position in an aperture.  <a href="#gacfc9f4ca2ef657f84bec2690dffbccfa">More...</a><br /></td></tr>
<tr class="separator:gacfc9f4ca2ef657f84bec2690dffbccfa"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga91c6d9491b1ac37be4ba91964328504f"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#ga91c6d9491b1ac37be4ba91964328504f">cpl_apertures_get_right_y</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:ga91c6d9491b1ac37be4ba91964328504f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the y position of the rightmost x position in an aperture.  <a href="#ga91c6d9491b1ac37be4ba91964328504f">More...</a><br /></td></tr>
<tr class="separator:ga91c6d9491b1ac37be4ba91964328504f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga3b2f9710b818d3bf27f608f859737603"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#ga3b2f9710b818d3bf27f608f859737603">cpl_apertures_get_size</a> (const cpl_apertures *self)</td></tr>
<tr class="memdesc:ga3b2f9710b818d3bf27f608f859737603"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the number of apertures.  <a href="#ga3b2f9710b818d3bf27f608f859737603">More...</a><br /></td></tr>
<tr class="separator:ga3b2f9710b818d3bf27f608f859737603"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga4c896de8f8bd9cfbfbea0bbe2404cf5a"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#ga4c896de8f8bd9cfbfbea0bbe2404cf5a">cpl_apertures_get_stdev</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:ga4c896de8f8bd9cfbfbea0bbe2404cf5a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the standard deviation of an aperture.  <a href="#ga4c896de8f8bd9cfbfbea0bbe2404cf5a">More...</a><br /></td></tr>
<tr class="separator:ga4c896de8f8bd9cfbfbea0bbe2404cf5a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga32c0687f64c78dbd035d4c7a3d7aa292"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#ga32c0687f64c78dbd035d4c7a3d7aa292">cpl_apertures_get_top</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:ga32c0687f64c78dbd035d4c7a3d7aa292"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the topmost y position in an aperture.  <a href="#ga32c0687f64c78dbd035d4c7a3d7aa292">More...</a><br /></td></tr>
<tr class="separator:ga32c0687f64c78dbd035d4c7a3d7aa292"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga120194579589f51326f99806ff1a54e2"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#ga120194579589f51326f99806ff1a54e2">cpl_apertures_get_top_x</a> (const cpl_apertures *self, <a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> ind)</td></tr>
<tr class="memdesc:ga120194579589f51326f99806ff1a54e2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the x position of the topmost y position in an aperture.  <a href="#ga120194579589f51326f99806ff1a54e2">More...</a><br /></td></tr>
<tr class="separator:ga120194579589f51326f99806ff1a54e2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga23b66826669fa90caafd5ad3060a116d"><td class="memItemLeft" align="right" valign="top">cpl_apertures *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#ga23b66826669fa90caafd5ad3060a116d">cpl_apertures_new_from_image</a> (const cpl_image *self, const cpl_image *lab)</td></tr>
<tr class="memdesc:ga23b66826669fa90caafd5ad3060a116d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Compute statistics on selected apertures.  <a href="#ga23b66826669fa90caafd5ad3060a116d">More...</a><br /></td></tr>
<tr class="separator:ga23b66826669fa90caafd5ad3060a116d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaf49a52c67776ba059b990af998b20826"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__cpl__error.html#ga44b4287e8a7a22122b94c220a1dd9459">cpl_error_code</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#gaf49a52c67776ba059b990af998b20826">cpl_apertures_sort_by_flux</a> (cpl_apertures *self)</td></tr>
<tr class="memdesc:gaf49a52c67776ba059b990af998b20826"><td class="mdescLeft">&#160;</td><td class="mdescRight">Sort by decreasing aperture flux.  <a href="#gaf49a52c67776ba059b990af998b20826">More...</a><br /></td></tr>
<tr class="separator:gaf49a52c67776ba059b990af998b20826"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaf34fb03adf4418d914108acc3baa5423"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__cpl__error.html#ga44b4287e8a7a22122b94c220a1dd9459">cpl_error_code</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#gaf34fb03adf4418d914108acc3baa5423">cpl_apertures_sort_by_max</a> (cpl_apertures *self)</td></tr>
<tr class="memdesc:gaf34fb03adf4418d914108acc3baa5423"><td class="mdescLeft">&#160;</td><td class="mdescRight">Sort by decreasing aperture peak value.  <a href="#gaf34fb03adf4418d914108acc3baa5423">More...</a><br /></td></tr>
<tr class="separator:gaf34fb03adf4418d914108acc3baa5423"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga47f4aabc5c4784407c8a715c46b4e6a0"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__cpl__error.html#ga44b4287e8a7a22122b94c220a1dd9459">cpl_error_code</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__cpl__apertures.html#ga47f4aabc5c4784407c8a715c46b4e6a0">cpl_apertures_sort_by_npix</a> (cpl_apertures *self)</td></tr>
<tr class="memdesc:ga47f4aabc5c4784407c8a715c46b4e6a0"><td class="mdescLeft">&#160;</td><td class="mdescRight">Sort by decreasing aperture size.  <a href="#ga47f4aabc5c4784407c8a715c46b4e6a0">More...</a><br /></td></tr>
<tr class="separator:ga47f4aabc5c4784407c8a715c46b4e6a0"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>The aperture object contains a list of zones in an image. It is typically used to contain the results of an objects detection, or if one wants to work on a very specific zone in an image.</p>
<p>This module provides functions to handle <em>cpl_apertures</em>. </p>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="gaae76b7d276ff9457bf8b0b5afa14f5df"></a>
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          <td class="memname">void cpl_apertures_delete </td>
          <td>(</td>
          <td class="paramtype">cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Destructor for cpl_apertures. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The object to delete. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
<dl class="section note"><dt>Note</dt><dd>If <em>self</em> is <code>NULL</code>, nothing is done and no error is set.</dd></dl>
<p>This function deallocates all memory allocated for the object. </p>

<p>References <a class="el" href="group__cpl__memory.html#ga9cd2b64cbbe05ec9f34fda048184b4d1">cpl_free()</a>.</p>

<p>Referenced by <a class="el" href="group__cpl__apertures.html#ga23b66826669fa90caafd5ad3060a116d">cpl_apertures_new_from_image()</a>, <a class="el" href="group__cpl__apertures.html#gaf49a52c67776ba059b990af998b20826">cpl_apertures_sort_by_flux()</a>, <a class="el" href="group__cpl__apertures.html#gaf34fb03adf4418d914108acc3baa5423">cpl_apertures_sort_by_max()</a>, <a class="el" href="group__cpl__apertures.html#ga47f4aabc5c4784407c8a715c46b4e6a0">cpl_apertures_sort_by_npix()</a>, and <a class="el" href="group__cpl__geom__img.html#ga91f5d0da222fcce4d019f2d241cc20f8">cpl_geom_img_offset_combine()</a>.</p>

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          <td class="memname">void cpl_apertures_dump </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">FILE *&#160;</td>
          <td class="paramname"><em>fp</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Dump a cpl_apertures to an opened file pointer. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures to dump </td></tr>
    <tr><td class="paramname">fp</td><td>File pointer, may use <em>stdout</em> or <em>stderr</em> </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>void</dd></dl>
<p>This function dumps all information in a cpl_apertures to the passed file pointer. If the object is unallocated or contains nothing, this function does nothing. </p>

<p>References <a class="el" href="group__cpl__type.html#ga4f6c44a14bbc3aea87b1f47acf8dfd02">CPL_SIZE_FORMAT</a>.</p>

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<a class="anchor" id="gab5609d48472fa576591e42868b7d8a52"></a>
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          <td class="memname">cpl_apertures* cpl_apertures_extract </td>
          <td>(</td>
          <td class="paramtype">const cpl_image *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const cpl_vector *&#160;</td>
          <td class="paramname"><em>sigmas</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> *&#160;</td>
          <td class="paramname"><em>pisigma</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Simple detection of apertures in an image. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The image to process </td></tr>
    <tr><td class="paramname">sigmas</td><td>Positive, decreasing sigmas to apply </td></tr>
    <tr><td class="paramname">pisigma</td><td>Index of the sigma that was used or unchanged on error </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The detected apertures or NULL on error </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#ga35155a7e7eac69da19b08aa1cb112168" title="Simple apertures detection in an image using a provided sigma. ">cpl_apertures_extract_sigma()</a></dd></dl>
<p>pisigma may be NULL.</p>
<p>Possible <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> set in this function:</p><ul>
<li>CPL_ERROR_NULL_INPUT if self or sigmas is NULL</li>
<li>CPL_ERROR_DATA_NOT_FOUND if the apertures cannot be detected </li>
</ul>

<p>References <a class="el" href="group__cpl__apertures.html#ga35155a7e7eac69da19b08aa1cb112168">cpl_apertures_extract_sigma()</a>, <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a5b82c7780a2a8a79dfafcac70717b830">CPL_ERROR_DATA_NOT_FOUND</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>, <a class="el" href="group__cpl__errorstate.html#gadbf3f1525429b95837bc79a5e99b12cd">cpl_errorstate_get()</a>, <a class="el" href="group__cpl__errorstate.html#gaa72d44efb065d64d8f1cac3d0e5bf8af">cpl_errorstate_set()</a>, <a class="el" href="group__cpl__vector.html#gaf2f50a71abb6d452edb3820b967b2022">cpl_vector_get()</a>, and <a class="el" href="group__cpl__vector.html#gac72d7e38ce2f5ac2e0863e2a11e9af1d">cpl_vector_get_size()</a>.</p>

<p>Referenced by <a class="el" href="group__cpl__apertures.html#ga81a3c7ab107e852bba7751b23d551095">cpl_apertures_extract_window()</a>, and <a class="el" href="group__cpl__geom__img.html#ga91f5d0da222fcce4d019f2d241cc20f8">cpl_geom_img_offset_combine()</a>.</p>

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<a class="anchor" id="ga6d1a9d2831508426141c99b425e9dcc6"></a>
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          <td class="memname">cpl_apertures* cpl_apertures_extract_mask </td>
          <td>(</td>
          <td class="paramtype">const cpl_image *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const cpl_mask *&#160;</td>
          <td class="paramname"><em>selection</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
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<p>Simple apertures creation from a user supplied selection mask. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The image to process </td></tr>
    <tr><td class="paramname">selection</td><td>The mask of selected pixels </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The list of detected apertures or NULL if nothing detected or on error. </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__image.html#gad38071b4db44e17818a0bade99a123c0" title="Labelise a mask to differentiate different objects. ">cpl_image_labelise_mask_create()</a>, <a class="el" href="group__cpl__apertures.html#ga23b66826669fa90caafd5ad3060a116d" title="Compute statistics on selected apertures. ">cpl_apertures_new_from_image()</a></dd></dl>
<p>The values selected for inclusion in the apertures must have the non-zero value in the selection mask, and must not be flagged as bad in the bad pixel map of the image.</p>
<p>The input image type can be CPL_TYPE_DOUBLE, CPL_TYPE_FLOAT or CPL_TYPE_INT.</p>
<p>Possible <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> set in this function:</p><ul>
<li>CPL_ERROR_NULL_INPUT if an input pointer is NULL</li>
<li>CPL_ERROR_INCOMPATIBLE_INPUT if self and selection have different sizes.</li>
<li>CPL_ERROR_TYPE_MISMATCH if self is of a complex type</li>
<li>CPL_ERROR_DATA_NOT_FOUND if the selection mask is empty </li>
</ul>

<p>References <a class="el" href="group__cpl__apertures.html#ga23b66826669fa90caafd5ad3060a116d">cpl_apertures_new_from_image()</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a5b82c7780a2a8a79dfafcac70717b830">CPL_ERROR_DATA_NOT_FOUND</a>, <a class="el" href="group__cpl__errorstate.html#gadbf3f1525429b95837bc79a5e99b12cd">cpl_errorstate_get()</a>, <a class="el" href="group__cpl__errorstate.html#gab4487759414dfe1a7403321b86d5b3cd">cpl_errorstate_is_equal()</a>, <a class="el" href="group__cpl__image.html#ga272e4e004716651b94d6d36e575b6841">cpl_image_delete()</a>, and <a class="el" href="group__cpl__image.html#gad38071b4db44e17818a0bade99a123c0">cpl_image_labelise_mask_create()</a>.</p>

<p>Referenced by <a class="el" href="group__cpl__apertures.html#ga35155a7e7eac69da19b08aa1cb112168">cpl_apertures_extract_sigma()</a>.</p>

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          <td class="memname">cpl_apertures* cpl_apertures_extract_sigma </td>
          <td>(</td>
          <td class="paramtype">const cpl_image *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>sigma</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Simple apertures detection in an image using a provided sigma. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The image to process </td></tr>
    <tr><td class="paramname">sigma</td><td>Detection level </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The list of detected apertures or NULL on error </dd></dl>
<dl class="section note"><dt>Note</dt><dd>In order to avoid (the potentially many) detections of small objects the mask of detected pixels is subjected to a 3x3 morphological opening filter. </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#ga6d1a9d2831508426141c99b425e9dcc6" title="Simple apertures creation from a user supplied selection mask. ">cpl_apertures_extract_mask()</a>, <a class="el" href="group__cpl__mask.html#ga093beb6bd195ec15a931034b3d28a8eb" title="Filter a mask using a binary kernel. ">cpl_mask_filter()</a></dd></dl>
<p>The threshold used for the detection is the median plus the average distance to the median times sigma.</p>
<p>The input image type can be CPL_TYPE_DOUBLE, CPL_TYPE_FLOAT or CPL_TYPE_INT.</p>
<p>Possible <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> set in this function:</p><ul>
<li>CPL_ERROR_NULL_INPUT if an input pointer is NULL</li>
<li>CPL_ERROR_ILLEGAL_INPUT if sigma is non-positive</li>
<li>CPL_ERROR_TYPE_MISMATCH if self is of a complex type</li>
<li>CPL_ERROR_DATA_NOT_FOUND if the no apertures are found </li>
</ul>

<p>References <a class="el" href="group__cpl__apertures.html#ga6d1a9d2831508426141c99b425e9dcc6">cpl_apertures_extract_mask()</a>, <a class="el" href="group__cpl__filter.html#ggaa315d358382b534d5a2ef030f8eda2acae7599ac2a7a21ebbcf186b59089f38bc">CPL_BORDER_ZERO</a>, <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>, <a class="el" href="group__cpl__filter.html#ggaf183188640e935882ac563db92f8d372a3ae095eb114698e8dfff1f78dbef3112">CPL_FILTER_OPENING</a>, <a class="el" href="group__cpl__image.html#ga2f2b6c1b96b88fd355c50a5fa063e2eb">cpl_image_get_median_dev()</a>, <a class="el" href="group__cpl__mask.html#gaa312160718b8fdc24de0cd755cf35224">cpl_mask_delete()</a>, <a class="el" href="group__cpl__mask.html#ga093beb6bd195ec15a931034b3d28a8eb">cpl_mask_filter()</a>, <a class="el" href="group__cpl__mask.html#gab67918578893ea4a0e005cb4397f8754">cpl_mask_new()</a>, <a class="el" href="group__cpl__mask.html#gaa30bea67c21cd608beb6add0a45a3f2f">cpl_mask_not()</a>, and <a class="el" href="group__cpl__mask.html#gae96b3b0d506ef4f97f0ce2d8d0d70d22">cpl_mask_threshold_image_create()</a>.</p>

<p>Referenced by <a class="el" href="group__cpl__apertures.html#gab5609d48472fa576591e42868b7d8a52">cpl_apertures_extract()</a>.</p>

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          <td class="memname">cpl_apertures* cpl_apertures_extract_window </td>
          <td>(</td>
          <td class="paramtype">const cpl_image *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const cpl_vector *&#160;</td>
          <td class="paramname"><em>sigmas</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>llx</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>lly</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>urx</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ury</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> *&#160;</td>
          <td class="paramname"><em>pisigma</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
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<p>Simple detection of apertures in an image window. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The image to process </td></tr>
    <tr><td class="paramname">sigmas</td><td>Positive, decreasing sigmas to apply </td></tr>
    <tr><td class="paramname">llx</td><td>Lower left x position (FITS convention) </td></tr>
    <tr><td class="paramname">lly</td><td>Lower left y position (FITS convention) </td></tr>
    <tr><td class="paramname">urx</td><td>Upper right x position (FITS convention) </td></tr>
    <tr><td class="paramname">ury</td><td>Upper right y position (FITS convention) </td></tr>
    <tr><td class="paramname">pisigma</td><td>Index of the sigma that was used or undefined on error </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The list of detected apertures or NULL on error </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#gab5609d48472fa576591e42868b7d8a52" title="Simple detection of apertures in an image. ">cpl_apertures_extract()</a> </dd>
<dd>
<a class="el" href="group__cpl__image.html#ga2f0f5804717110451f74d3b9e1bdf8c7" title="Extract a rectangular zone from an image into another image. ">cpl_image_extract()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__apertures.html#gab5609d48472fa576591e42868b7d8a52">cpl_apertures_extract()</a>, <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#ga724de575c31ddf40f42786306f9dbdcb">cpl_error_get_code()</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>, <a class="el" href="group__cpl__image.html#ga272e4e004716651b94d6d36e575b6841">cpl_image_delete()</a>, and <a class="el" href="group__cpl__image.html#ga2f0f5804717110451f74d3b9e1bdf8c7">cpl_image_extract()</a>.</p>

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          <td class="memname"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> cpl_apertures_get_bottom </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
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          <td>)</td>
          <td></td><td></td>
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<p>Get the bottommost y position in an aperture. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the bottommost y position in the aperture or negative on error </dd></dl>
<dl class="section note"><dt>Note</dt><dd>In case of an error the <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> code is set </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#gad0681d2aec939ba69ab2a5d439b651c2" title="Get the X-position of the aperture maximum value. ">cpl_apertures_get_maxpos_x()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

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          <td class="memname"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> cpl_apertures_get_bottom_x </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
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          <td>)</td>
          <td></td><td></td>
        </tr>
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<p>Get the x position of the bottommost y position in an aperture. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the bottommost x position of the aperture or negative on error </dd></dl>
<dl class="section note"><dt>Note</dt><dd>An aperture may have multiple bottom x positions, in which case one of these is returned. </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#gad0681d2aec939ba69ab2a5d439b651c2" title="Get the X-position of the aperture maximum value. ">cpl_apertures_get_maxpos_x()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

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          <td class="memname">double cpl_apertures_get_centroid_x </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
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          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
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<p>Get the X-centroid of an aperture. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The X-centroid position of the aperture or negative on error </dd></dl>
<dl class="section note"><dt>Note</dt><dd>In case of an error the <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> code is set</dd></dl>
<p>For a concave aperture the centroid may not belong to the aperture.</p>
<p>Possible <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> set in this function:</p><ul>
<li>CPL_ERROR_NULL_INPUT if an input pointer is NULL</li>
<li>CPL_ERROR_ILLEGAL_INPUT if ind is non-positive</li>
<li>CPL_ERROR_ACCESS_OUT_OF_RANGE if ind exceeds the number of apertures in self </li>
</ul>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

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          <td class="memname">double cpl_apertures_get_centroid_y </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
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<p>Get the Y-centroid of an aperture. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The X-centroid position of the aperture or negative on error </dd></dl>
<dl class="section note"><dt>Note</dt><dd>In case of an error the <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> code is set </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#gae35a53d2a8738239f8d380a0b227d7ea" title="Get the X-centroid of an aperture. ">cpl_apertures_get_centroid_x()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

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          <td class="memname">double cpl_apertures_get_flux </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
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<p>Get the flux of an aperture. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The flux of the aperture or undefined on error </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#ga63d457d77390f54804e398c997806aed" title="Get the maximum value of an aperture. ">cpl_apertures_get_max()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

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          <td class="memname">cpl_bivector* cpl_apertures_get_fwhm </td>
          <td>(</td>
          <td class="paramtype">const cpl_image *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>aperts</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
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<p>Compute FWHM values in x and y for a list of apertures. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The image to process </td></tr>
    <tr><td class="paramname">aperts</td><td>The list of apertures </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>A newly allocated object containing the fwhms in x and y or NULL </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__image.html#gad26891c8556c11a731cdedaa5fbbb009" title="Compute FWHM values in x and y for an object. ">cpl_image_get_fwhm()</a> </dd></dl>
<dl class="deprecated"><dt><b><a class="el" href="deprecated.html#_deprecated000035">Deprecated:</a></b></dt><dd>Replace this call with a loop over <a class="el" href="group__cpl__image.html#gad26891c8556c11a731cdedaa5fbbb009" title="Compute FWHM values in x and y for an object. ">cpl_image_get_fwhm()</a></dd></dl>

<p>References <a class="el" href="group__cpl__apertures.html#ga82d10792f91f7065eb026289be126c64">cpl_apertures_get_pos_x()</a>, <a class="el" href="group__cpl__apertures.html#gac9bc0b6dc953d2c328815215ea535def">cpl_apertures_get_pos_y()</a>, <a class="el" href="group__cpl__apertures.html#ga3b2f9710b818d3bf27f608f859737603">cpl_apertures_get_size()</a>, <a class="el" href="group__cpl__bivector.html#gab49cf8bcea934646b96a4d4e476d7e54">cpl_bivector_delete()</a>, <a class="el" href="group__cpl__bivector.html#ga1f13e7e98cc006f90242e339d7542776">cpl_bivector_get_x_data()</a>, <a class="el" href="group__cpl__bivector.html#ga0b602bdb76caaae732af9825dd5a533b">cpl_bivector_get_y_data()</a>, <a class="el" href="group__cpl__bivector.html#ga12e8941b1eda64be7e5dafe16ce4dc24">cpl_bivector_new()</a>, <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a5b82c7780a2a8a79dfafcac70717b830">CPL_ERROR_DATA_NOT_FOUND</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>, <a class="el" href="group__cpl__errorstate.html#gadbf3f1525429b95837bc79a5e99b12cd">cpl_errorstate_get()</a>, <a class="el" href="group__cpl__errorstate.html#gaa72d44efb065d64d8f1cac3d0e5bf8af">cpl_errorstate_set()</a>, and <a class="el" href="group__cpl__image.html#gad26891c8556c11a731cdedaa5fbbb009">cpl_image_get_fwhm()</a>.</p>

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          <td class="memname"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> cpl_apertures_get_left </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Get the leftmost x position in an aperture. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the leftmost x position of the aperture or negative on error </dd></dl>
<dl class="section note"><dt>Note</dt><dd>In case of an error the <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> code is set </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#gad0681d2aec939ba69ab2a5d439b651c2" title="Get the X-position of the aperture maximum value. ">cpl_apertures_get_maxpos_x()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

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          <td class="memname"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> cpl_apertures_get_left_y </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Get the y position of the leftmost x position in an aperture. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the y position of the leftmost x position or negative on error </dd></dl>
<dl class="section note"><dt>Note</dt><dd>An aperture may have multiple leftmost x positions, in which case one of these is returned. </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#gad0681d2aec939ba69ab2a5d439b651c2" title="Get the X-position of the aperture maximum value. ">cpl_apertures_get_maxpos_x()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

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          <td class="memname">double cpl_apertures_get_max </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Get the maximum value of an aperture. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The maximum value of the aperture or undefined on error </dd></dl>
<dl class="section note"><dt>Note</dt><dd>In case of an error the <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> code is set</dd></dl>
<p>Possible <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> set in this function:</p><ul>
<li>CPL_ERROR_NULL_INPUT if an input pointer is NULL</li>
<li>CPL_ERROR_ILLEGAL_INPUT if ind is non-positive</li>
<li>CPL_ERROR_ACCESS_OUT_OF_RANGE if ind exceeds the number of apertures in self </li>
</ul>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

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          <td class="memname">double cpl_apertures_get_max_x </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Get the average X-position of an aperture. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The average X-position of the aperture or negative on error </dd></dl>
<dl class="deprecated"><dt><b><a class="el" href="deprecated.html#_deprecated000033">Deprecated:</a></b></dt><dd>Replace this function with <a class="el" href="group__cpl__apertures.html#ga82d10792f91f7065eb026289be126c64" title="Get the average X-position of an aperture. ">cpl_apertures_get_pos_x()</a></dd></dl>

<p>References <a class="el" href="group__cpl__apertures.html#ga82d10792f91f7065eb026289be126c64">cpl_apertures_get_pos_x()</a>.</p>

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          <td class="memname">double cpl_apertures_get_max_y </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
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<p>Get the average Y-position of an aperture. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The average Y-position of the aperture or negative on error </dd></dl>
<dl class="deprecated"><dt><b><a class="el" href="deprecated.html#_deprecated000034">Deprecated:</a></b></dt><dd>Replace this function with <a class="el" href="group__cpl__apertures.html#gac9bc0b6dc953d2c328815215ea535def" title="Get the average Y-position of an aperture. ">cpl_apertures_get_pos_y()</a></dd></dl>

<p>References <a class="el" href="group__cpl__apertures.html#gac9bc0b6dc953d2c328815215ea535def">cpl_apertures_get_pos_y()</a>.</p>

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          <td class="memname"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> cpl_apertures_get_maxpos_x </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Get the X-position of the aperture maximum value. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The X-position of the aperture maximum value or negative on error </dd></dl>
<dl class="section note"><dt>Note</dt><dd>In case of an error the <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> code is set </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#gae35a53d2a8738239f8d380a0b227d7ea" title="Get the X-centroid of an aperture. ">cpl_apertures_get_centroid_x()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

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          <td class="memname"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> cpl_apertures_get_maxpos_y </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Get the Y-position of the aperture maximum value. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The Y-position of the aperture maximum value or negative on error </dd></dl>
<dl class="section note"><dt>Note</dt><dd>In case of an error the <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> code is set </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#gad0681d2aec939ba69ab2a5d439b651c2" title="Get the X-position of the aperture maximum value. ">cpl_apertures_get_maxpos_x()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

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          <td class="memname">double cpl_apertures_get_mean </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Get the mean value of an aperture. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The mean value of the aperture or undefined on error </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#ga63d457d77390f54804e398c997806aed" title="Get the maximum value of an aperture. ">cpl_apertures_get_max()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

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          <td class="memname">double cpl_apertures_get_median </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Get the median value of an aperture. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The median value of the aperture or undefined on error </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#ga63d457d77390f54804e398c997806aed" title="Get the maximum value of an aperture. ">cpl_apertures_get_max()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

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          <td class="memname">double cpl_apertures_get_min </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Get the minimum value of an aperture. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The minimum value of the aperture or undefined on error </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#ga63d457d77390f54804e398c997806aed" title="Get the maximum value of an aperture. ">cpl_apertures_get_max()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

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          <td class="memname"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> cpl_apertures_get_minpos_x </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Get the X-position of the aperture minimum value. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The X-position of the aperture minimum value or negative on error </dd></dl>
<dl class="section note"><dt>Note</dt><dd>In case of an error the <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> code is set </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#gad0681d2aec939ba69ab2a5d439b651c2" title="Get the X-position of the aperture maximum value. ">cpl_apertures_get_maxpos_x()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

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          <td class="memname"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> cpl_apertures_get_minpos_y </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Get the Y-position of the aperture minimum value. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The Y-position of the aperture minimum value or negative on error </dd></dl>
<dl class="section note"><dt>Note</dt><dd>In case of an error the <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> code is set </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#ga08009cd9868547ba37a7b63b63266455" title="Get the X-position of the aperture minimum value. ">cpl_apertures_get_minpos_x()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

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          <td class="memname"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> cpl_apertures_get_npix </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Get the number of pixels of an aperture. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The number of pixels of the aperture or negative on error </dd></dl>
<dl class="section note"><dt>Note</dt><dd>In case of an error the <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> code is set</dd></dl>
<p>Possible <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> set in this function:</p><ul>
<li>CPL_ERROR_NULL_INPUT if an input pointer is NULL</li>
<li>CPL_ERROR_ILLEGAL_INPUT if ind is non-positive</li>
<li>CPL_ERROR_ACCESS_OUT_OF_RANGE if ind exceeds the number of apertures in self </li>
</ul>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

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          <td class="memname">double cpl_apertures_get_pos_x </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Get the average X-position of an aperture. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The average X-position of the aperture or negative on error </dd></dl>
<dl class="section note"><dt>Note</dt><dd>In case of an error the <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> code is set </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#gae35a53d2a8738239f8d380a0b227d7ea" title="Get the X-centroid of an aperture. ">cpl_apertures_get_centroid_x()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

<p>Referenced by <a class="el" href="group__cpl__apertures.html#gabac3029e5f7d8eff821fe204c8ae98e6">cpl_apertures_get_fwhm()</a>, <a class="el" href="group__cpl__apertures.html#gafb411aa849344c92ce0b4e6376faa0b1">cpl_apertures_get_max_x()</a>, and <a class="el" href="group__cpl__geom__img.html#ga91f5d0da222fcce4d019f2d241cc20f8">cpl_geom_img_offset_combine()</a>.</p>

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          <td class="memname">double cpl_apertures_get_pos_y </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Get the average Y-position of an aperture. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The average Y-position of the aperture or negative on error </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#ga82d10792f91f7065eb026289be126c64" title="Get the average X-position of an aperture. ">cpl_apertures_get_pos_x()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

<p>Referenced by <a class="el" href="group__cpl__apertures.html#gabac3029e5f7d8eff821fe204c8ae98e6">cpl_apertures_get_fwhm()</a>, <a class="el" href="group__cpl__apertures.html#gaef0b45b25cf7af68c7a14486a9e99691">cpl_apertures_get_max_y()</a>, and <a class="el" href="group__cpl__geom__img.html#ga91f5d0da222fcce4d019f2d241cc20f8">cpl_geom_img_offset_combine()</a>.</p>

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          <td class="memname"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> cpl_apertures_get_right </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Get the rightmost x position in an aperture. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the rightmost x position in an aperture or negative on error </dd></dl>
<dl class="section note"><dt>Note</dt><dd>In case of an error the <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> code is set </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#gad0681d2aec939ba69ab2a5d439b651c2" title="Get the X-position of the aperture maximum value. ">cpl_apertures_get_maxpos_x()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

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          <td class="memname"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> cpl_apertures_get_right_y </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
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<p>Get the y position of the rightmost x position in an aperture. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the y position of the rightmost x position or negative on error </dd></dl>
<dl class="section note"><dt>Note</dt><dd>An aperture may have multiple rightmost x positions, in which case one of these is returned. </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#gad0681d2aec939ba69ab2a5d439b651c2" title="Get the X-position of the aperture maximum value. ">cpl_apertures_get_maxpos_x()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

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          <td class="memname"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> cpl_apertures_get_size </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
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<p>Get the number of apertures. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The number of apertures or -1 on error</dd></dl>
<p>Possible <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> set in this function:</p><ul>
<li>CPL_ERROR_NULL_INPUT if an input pointer is NULL </li>
</ul>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

<p>Referenced by <a class="el" href="group__cpl__apertures.html#gabac3029e5f7d8eff821fe204c8ae98e6">cpl_apertures_get_fwhm()</a>.</p>

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          <td class="memname">double cpl_apertures_get_stdev </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Get the standard deviation of an aperture. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The standard deviation of the aperture or negative on error </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#ga63d457d77390f54804e398c997806aed" title="Get the maximum value of an aperture. ">cpl_apertures_get_max()</a></dd></dl>
<p>Possible <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> set in this function:</p><ul>
<li>CPL_ERROR_NULL_INPUT if an input pointer is NULL</li>
<li>CPL_ERROR_ILLEGAL_INPUT if ind is non-positive</li>
<li>CPL_ERROR_ACCESS_OUT_OF_RANGE if ind exceeds the number of apertures in self</li>
<li>CPL_ERROR_DATA_NOT_FOUND if the aperture comprises less than two pixels </li>
</ul>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a5b82c7780a2a8a79dfafcac70717b830">CPL_ERROR_DATA_NOT_FOUND</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

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          <td class="memname"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> cpl_apertures_get_top </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Get the topmost y position in an aperture. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the topmost y position in the aperture or negative on error </dd></dl>
<dl class="section note"><dt>Note</dt><dd>In case of an error the <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> code is set </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#gad0681d2aec939ba69ab2a5d439b651c2" title="Get the X-position of the aperture maximum value. ">cpl_apertures_get_maxpos_x()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

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          <td class="memname"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a> cpl_apertures_get_top_x </td>
          <td>(</td>
          <td class="paramtype">const cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__cpl__type.html#gacc431432a4fedf19ec6f7668dda3fbf0">cpl_size</a>&#160;</td>
          <td class="paramname"><em>ind</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Get the x position of the topmost y position in an aperture. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>The cpl_apertures object </td></tr>
    <tr><td class="paramname">ind</td><td>The aperture index (1 for the first one) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the x position of the topmost y position or negative on error </dd></dl>
<dl class="section note"><dt>Note</dt><dd>An aperture may have multiple topmost x positions, in which case one of these is returned. </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#gad0681d2aec939ba69ab2a5d439b651c2" title="Get the X-position of the aperture maximum value. ">cpl_apertures_get_maxpos_x()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0d916ea6a7e198a74863ecd9ea03d733">CPL_ERROR_ACCESS_OUT_OF_RANGE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, and <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>.</p>

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          <td class="memname">cpl_apertures* cpl_apertures_new_from_image </td>
          <td>(</td>
          <td class="paramtype">const cpl_image *&#160;</td>
          <td class="paramname"><em>self</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const cpl_image *&#160;</td>
          <td class="paramname"><em>lab</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
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<p>Compute statistics on selected apertures. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>Reference image </td></tr>
    <tr><td class="paramname">lab</td><td>Labelized image (of type CPL_TYPE_INT) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>An CPL apertures object or <em>NULL</em> on error </dd></dl>
<dl class="section note"><dt>Note</dt><dd>The returned object must be deleted using <a class="el" href="group__cpl__apertures.html#gaae76b7d276ff9457bf8b0b5afa14f5df" title="Destructor for cpl_apertures. ">cpl_apertures_delete()</a>. </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__image.html#gad38071b4db44e17818a0bade99a123c0" title="Labelise a mask to differentiate different objects. ">cpl_image_labelise_mask_create()</a></dd></dl>
<p>The labelized image must contain at least one pixel for each value from 1 to the maximum value in the image.</p>
<p>For the centroiding computation of an aperture, if some pixels have values lower or equal to 0, all the values of the aperture are locally shifted such as the minimum value of the aperture has a value of epsilon. The centroid is then computed on these positive values. In principle, centroid should always be computed on positive values, this is done to avoid raising an error in case the caller of the function wants to use it on negative values images without caring about the centroid results. In such cases, the centroid result would be meaningful, but slightly depend on the hardcoded value chosen for epsilon (1e-10).</p>
<p>Possible <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> set in this function:</p><ul>
<li>CPL_ERROR_NULL_INPUT if an input pointer is NULL</li>
<li>CPL_ERROR_TYPE_MISMATCH if lab is not of type CPL_TYPE_INT or if self is of a complex type</li>
<li>CPL_ERROR_ILLEGAL_INPUT if lab has a negative value or zero maximum</li>
<li>CPL_ERROR_INCOMPATIBLE_INPUT if lab and self have different sizes.</li>
<li>CPL_ERROR_DATA_NOT_FOUND if one of the lab values is missing. </li>
</ul>

<p>References <a class="el" href="group__cpl__apertures.html#gaae76b7d276ff9457bf8b0b5afa14f5df">cpl_apertures_delete()</a>, <a class="el" href="group__cpl__memory.html#gab672473d6f7d0d933e06c2e8c456bd3b">cpl_calloc()</a>, <a class="el" href="group__cpl__error.html#gac0ec1b4810f247e844f4ca01cf8f0348">cpl_ensure</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a5b82c7780a2a8a79dfafcac70717b830">CPL_ERROR_DATA_NOT_FOUND</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900ae6ab32df318c1af9afcddcb8249cad51">CPL_ERROR_ILLEGAL_INPUT</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a67b9f44eb1db1ab12f0575dbb878c0fd">CPL_ERROR_INCOMPATIBLE_INPUT</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a2e9d240c9641519323b3d6d616952482">CPL_ERROR_TYPE_MISMATCH</a>, <a class="el" href="group__cpl__memory.html#ga9cd2b64cbbe05ec9f34fda048184b4d1">cpl_free()</a>, <a class="el" href="group__cpl__image.html#gad986c25e9250952770f854022e1ffb24">cpl_image_cast()</a>, <a class="el" href="group__cpl__image.html#ga272e4e004716651b94d6d36e575b6841">cpl_image_delete()</a>, <a class="el" href="group__cpl__image.html#gadebfe1dae2cbd7a59fc09b323c55c10e">cpl_image_duplicate()</a>, <a class="el" href="group__cpl__image.html#gabdd5469f56fb6e7fa791b23fe459a75c">cpl_image_fill_rejected()</a>, <a class="el" href="group__cpl__image.html#gaa199c6fc00ac1d83ed37fb9717e2c4bd">cpl_image_get_bpm_const()</a>, <a class="el" href="group__cpl__image.html#ga2bf936dc6e939e2be9b8bd0d959c52e8">cpl_image_get_data_double_const()</a>, <a class="el" href="group__cpl__image.html#ga948d7fe4814246e6f0dcb6c63217705b">cpl_image_get_data_int_const()</a>, <a class="el" href="group__cpl__image.html#gabf0fdb334ef6a45c1dd0d7e20e7cea49">cpl_image_get_max()</a>, <a class="el" href="group__cpl__image.html#gab5a6bc059aa1d38c37ab5852b5170e45">cpl_image_get_size_x()</a>, <a class="el" href="group__cpl__image.html#gaf3495f9be1d6892cfed9c5232ccee350">cpl_image_get_size_y()</a>, <a class="el" href="group__cpl__image.html#ga17f97e60794f88e7f06b85cccbecc132">cpl_image_get_type()</a>, <a class="el" href="group__cpl__image.html#ga2596acf228f922542f4a1ff4f17d7e71">cpl_image_reject_from_mask()</a>, <a class="el" href="group__cpl__memory.html#gac884edcb0a592489c65239d0e5d08785">cpl_malloc()</a>, <a class="el" href="group__cpl__mask.html#ga0009ad4c6aed58343b09e47ef38ef9e4">cpl_mask_is_empty()</a>, <a class="el" href="group__cpl__type.html#gga3f03371e201544e9115b40065e47f086a4923f03f3a673edd344b0d81835ca69e">CPL_TYPE_DOUBLE</a>, and <a class="el" href="group__cpl__type.html#gga3f03371e201544e9115b40065e47f086ae333db5ccea0813ccd892525b4ba1345">CPL_TYPE_INT</a>.</p>

<p>Referenced by <a class="el" href="group__cpl__apertures.html#ga6d1a9d2831508426141c99b425e9dcc6">cpl_apertures_extract_mask()</a>.</p>

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          <td class="memname"><a class="el" href="group__cpl__error.html#ga44b4287e8a7a22122b94c220a1dd9459">cpl_error_code</a> cpl_apertures_sort_by_flux </td>
          <td>(</td>
          <td class="paramtype">cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
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<p>Sort by decreasing aperture flux. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>Apertures to sort (MODIFIED) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> or CPL_ERROR_NONE </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#ga47f4aabc5c4784407c8a715c46b4e6a0" title="Sort by decreasing aperture size. ">cpl_apertures_sort_by_npix()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__apertures.html#gaae76b7d276ff9457bf8b0b5afa14f5df">cpl_apertures_delete()</a>, <a class="el" href="group__cpl__memory.html#gab672473d6f7d0d933e06c2e8c456bd3b">cpl_calloc()</a>, <a class="el" href="group__cpl__error.html#ga79968a56c1b2ee25b12747ad7e1b3478">cpl_ensure_code</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0239c1c63e9d21e98e45221a3ad60406">CPL_ERROR_NONE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>, <a class="el" href="group__cpl__memory.html#ga9cd2b64cbbe05ec9f34fda048184b4d1">cpl_free()</a>, and <a class="el" href="group__cpl__memory.html#gac884edcb0a592489c65239d0e5d08785">cpl_malloc()</a>.</p>

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          <td class="memname"><a class="el" href="group__cpl__error.html#ga44b4287e8a7a22122b94c220a1dd9459">cpl_error_code</a> cpl_apertures_sort_by_max </td>
          <td>(</td>
          <td class="paramtype">cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Sort by decreasing aperture peak value. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>Apertures to sort (MODIFIED) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> or CPL_ERROR_NONE </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__cpl__apertures.html#ga47f4aabc5c4784407c8a715c46b4e6a0" title="Sort by decreasing aperture size. ">cpl_apertures_sort_by_npix()</a> </dd></dl>

<p>References <a class="el" href="group__cpl__apertures.html#gaae76b7d276ff9457bf8b0b5afa14f5df">cpl_apertures_delete()</a>, <a class="el" href="group__cpl__memory.html#gab672473d6f7d0d933e06c2e8c456bd3b">cpl_calloc()</a>, <a class="el" href="group__cpl__error.html#ga79968a56c1b2ee25b12747ad7e1b3478">cpl_ensure_code</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0239c1c63e9d21e98e45221a3ad60406">CPL_ERROR_NONE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>, <a class="el" href="group__cpl__memory.html#ga9cd2b64cbbe05ec9f34fda048184b4d1">cpl_free()</a>, and <a class="el" href="group__cpl__memory.html#gac884edcb0a592489c65239d0e5d08785">cpl_malloc()</a>.</p>

</div>
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<a class="anchor" id="ga47f4aabc5c4784407c8a715c46b4e6a0"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname"><a class="el" href="group__cpl__error.html#ga44b4287e8a7a22122b94c220a1dd9459">cpl_error_code</a> cpl_apertures_sort_by_npix </td>
          <td>(</td>
          <td class="paramtype">cpl_apertures *&#160;</td>
          <td class="paramname"><em>self</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Sort by decreasing aperture size. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">self</td><td>Apertures to sort (MODIFIED) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>CPL_ERROR_NONE or the relevant <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a></dd></dl>
<p>Possible <a class="el" href="group__cpl__error.html#ga49a0c316d52d2afbfd9fd94b95344900" title="Available error codes. ">_cpl_error_code_</a> set in this function:</p><ul>
<li>CPL_ERROR_NULL_INPUT if an input pointer is NULL </li>
</ul>

<p>References <a class="el" href="group__cpl__apertures.html#gaae76b7d276ff9457bf8b0b5afa14f5df">cpl_apertures_delete()</a>, <a class="el" href="group__cpl__memory.html#gab672473d6f7d0d933e06c2e8c456bd3b">cpl_calloc()</a>, <a class="el" href="group__cpl__error.html#ga79968a56c1b2ee25b12747ad7e1b3478">cpl_ensure_code</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a0239c1c63e9d21e98e45221a3ad60406">CPL_ERROR_NONE</a>, <a class="el" href="group__cpl__error.html#gga49a0c316d52d2afbfd9fd94b95344900a7b054cf7927d1bd0a9b3693a6715be84">CPL_ERROR_NULL_INPUT</a>, <a class="el" href="group__cpl__memory.html#ga9cd2b64cbbe05ec9f34fda048184b4d1">cpl_free()</a>, and <a class="el" href="group__cpl__memory.html#gac884edcb0a592489c65239d0e5d08785">cpl_malloc()</a>.</p>

<p>Referenced by <a class="el" href="group__cpl__geom__img.html#ga91f5d0da222fcce4d019f2d241cc20f8">cpl_geom_img_offset_combine()</a>.</p>

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