/usr/lib/gimp/2.0/plug-ins/plugin-uncrop.py is in gimp-plugin-registry 7.20140602ubuntu3.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 | #!/usr/bin/env python
'''
Gimp plugin "Uncrop"
Increase image/canvas size and synthesize outer band from edge of original.
Author:
lloyd konneker, lkk
Version:
1.0 lkk 5/15/2009 Initial version in scheme, released to Gimp Registry.
1.1 lkk 9/21/2009 Translate to python.
License:
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
The GNU Public License is available at
http://www.gnu.org/copyleft/gpl.html
The effect for users:
widens the field of view, maintaining perspective of original
Should be undoable, except for loss of selection.
Should work on any image type, any count of layers and channels (although only active layer is affected.)
Programming notes:
Scheme uses - in names, python uses _
Programming devt. cycle:
Initial creation: cp foo.py ~/.gimp-2.6/scripts, chmod +x, start gimp
Refresh: just copy, no need to restart gimp if the pdb registration is unchanged
IN: Nothing special. The selection is immaterial but is not preserved.
OUT larger layer and image. All other layers not enlarged.
'''
from gimpfu import *
gettext.install("resynthesizer", gimp.locale_directory, unicode=True)
def resizeImageCentered(image, percentEnlarge):
# resize and center image by percent (converted to pixel units)
deltaFraction = (percentEnlarge / 100) + 1.0
priorWidth = pdb.gimp_image_width(image)
priorHeight = pdb.gimp_image_height(image)
deltaWidth = priorWidth * deltaFraction
deltaHeight = priorHeight * deltaFraction
centeredOffX = (deltaWidth - priorWidth)/ 2
centeredOffY = (deltaHeight - priorHeight) / 2
pdb.gimp_image_resize(image, deltaWidth, deltaHeight, centeredOffX, centeredOffY)
#if not pdb.gimp_image_resize(image, deltaWidth, deltaHeight, centeredOffX, centeredOffY):
# raise RuntimeError, "Failed resize"
def shrinkSelectionByPercent(image, percent):
# shrink selection by percent (converted to pixel units)
deltaFraction = percent / 100
# convert to pixel dimensions
priorWidth = pdb.gimp_image_width(image)
priorHeight = pdb.gimp_image_height(image)
deltaWidth = priorWidth * deltaFraction
deltaHeight = priorHeight * deltaFraction
# !!! Note total shrink percentage is halved (width of band is percentage/2)
maxDelta = max(deltaWidth, deltaHeight) / 2
pdb.gimp_selection_shrink(image, maxDelta)
#if not pdb.gimp_selection_shrink(image, maxDelta):
# raise RuntimeError, "Failed shrink selection"
def uncrop(orgImage, drawable, percentEnlargeParam=10):
'''
Create frisket stencil selection in a temp image to pass as source (corpus) to plugin resynthesizer,
which does the substantive work.
'''
if not pdb.gimp_drawable_is_layer(drawable):
pdb.gimp_message(_("A layer must be active, not a channel."))
return
pdb.gimp_image_undo_group_start(orgImage)
# copy original into temp for later use
tempImage = pdb.gimp_image_duplicate(orgImage)
if not tempImage:
raise RuntimeError, "Failed duplicate image"
'''
Prepare target: enlarge canvas and select the new, blank outer ring
'''
# Save original bounds to later select outer band
pdb.gimp_selection_all(orgImage)
selectAllPrior = pdb.gimp_selection_save(orgImage)
# Resize image alone doesn't resize layer, so resize layer also
resizeImageCentered(orgImage, percentEnlargeParam)
pdb.gimp_layer_resize_to_image_size(drawable)
pdb.gimp_selection_load(selectAllPrior)
# select outer band, the new blank canvas.
pdb.gimp_selection_invert(orgImage)
# Assert target image is ready.
'''
Prepare source (corpus) layer, a band at edge of original, in a dupe.
Note the width of corpus band is same as width of enlargement band.
'''
# Working with the original size.
# Could be alpha channel transparency
workLayer = pdb.gimp_image_get_active_layer(tempImage)
if not workLayer:
raise RuntimeError, "Failed get active layer"
# Select outer band: select all, shrink
pdb.gimp_selection_all(tempImage)
shrinkSelectionByPercent(tempImage, percentEnlargeParam)
pdb.gimp_selection_invert(tempImage) # invert interior selection into a frisket
# Note that v1 resynthesizer required an inverted selection !!
# No need to crop corpus to save memory.
# Note that the API hasn't changed but use_border param now has more values.
# !!! The crux: use_border param=5 means inside out direction
pdb.plug_in_resynthesizer(orgImage, drawable, 0,0,5, workLayer.ID, -1, -1, 0.0, 0.117, 16, 500)
# Clean up.
# Any errors now are moot.
pdb.gimp_selection_none(orgImage)
pdb.gimp_image_remove_channel(orgImage, selectAllPrior)
pdb.gimp_image_undo_group_end(orgImage)
pdb.gimp_displays_flush()
gimp.delete(tempImage) # Comment out to debug corpus creation.
register(
"python_fu_uncrop",
N_("Enlarge image by synthesizing a border that matches the edge, maintaining perspective. Works best for small enlargement of natural edges. Undo a Crop instead, if possible! "),
"Requires separate resynthesizer plugin.",
"Lloyd Konneker",
"Copyright 2009 Lloyd Konneker",
"2009",
N_("Uncrop..."),
"RGB*, GRAY*",
[
(PF_IMAGE, "image", "Input image", None),
(PF_DRAWABLE, "drawable", "Input drawable", None),
(PF_SLIDER, "percentEnlargeParam", _("Percent enlargement"), 10, (0, 100, 1))
],
[],
uncrop,
menu="<Image>/Filters/Enhance",
domain=("resynthesizer", gimp.locale_directory)
)
main()
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