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<head>
<title>wrcoef2</title>
</head>
<body bgcolor="#FFFFFF">
<center>Scilab Wavelet Toolbox Function </center>
<div align="right">Last update : June 2007 </div>
<p>
<b>wrcoef2</b> - Restruction from single branch from two dimension multiple level decompstion </p>
<h3>
<font color="blue">Calling Sequence</font>
</h3>
<dl>
<dd>
<tt>X=wrcoef2(type,c,s,wname,[N])</tt>
</dd>
<dd>
<tt>X=wrcoef2(type,c,s,Lo_R,Hi_R,[N])</tt>
</dd>
</dl>
<h3>
<font color="blue">Parameters</font>
</h3>
<ul>
<li>
<tt>
<b>type </b>
</tt>
: approximation or detail, 'a', 'h', 'v' or 'd'.
</li>
<li>
<tt>
<b>wname </b>
</tt>
: wavelet name
</li>
<li>
<tt>
<b>X </b>
</tt>
: reconstruction
</li>
<li>
<tt>
<b>Lo_R </b>
</tt>
: lowpass synthesis filter
</li>
<li>
<tt>
<b>Hi_R </b>
</tt>
: highpass syntheis filter
</li>
<li>
<tt>
<b>c </b>
</tt>
: coefficent array
</li>
<li>
<tt>
<b>s </b>
</tt>
: size array
</li>
<li>
<tt>
<b>N </b>
</tt>
: restruction level
</li>
</ul>
<h3>
<font color="blue">Description</font>
</h3>
<p>
wrcoef2 is for reconstruciton from single branch of two dimension multiple level
decompostion. Extension mode is stored as a global variable and
could be changed with dwtmode. If N is omitted, maximum level is
used.
</p>
<h3>
<font color="blue">Examples</font>
</h3>
<pre>
x=rand(100,100);
[C,S]=wavedec2(x,3,'db2');
A2=wrcoef2('a',c,S,'db2',2);
</pre>
<h3>
<font color="blue">Author</font>
</h3>
<p>Roger Liu and Isaac Zhi </p>
<h3>
<font color="blue">See Also</font>
</h3>
<p>
<a href="wavedec2.htm">
<tt>
<b>wavedec2</b>
</tt>
</a>, <a href="waverec2.htm">
<tt>
<b>waverec2</b>
</tt>
</a>, <a href="upcoef2.htm">
<tt>
<b>upcoef2</b>
</tt>
</a>, </p>
</body>
</html>
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