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113 lines
3.2 KiB
Python
Executable File
113 lines
3.2 KiB
Python
Executable File
#!/usr/bin/env python
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'''
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Gimp plugin "Enlarge and resynthesize"
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Author:
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lloyd konneker
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Based on smart_enlarge.scm 2000 by Paul Harrison.
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Version:
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1.0 lloyd konneker lkk 2010 Initial version in python.
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License:
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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The GNU Public License is available at
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http://www.gnu.org/copyleft/gpl.html
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'''
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from gimpfu import *
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gettext.install("resynthesizer", gimp.locale_directory, unicode=True)
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def plugin_main(image, drawable, scale_factor):
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'''
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Algorithm:
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Scale image up.
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Resynthesize with:
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corpus = original size image
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in map = original size image but scaled up and down to blur
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out map = scaled up image
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This restores the detail that scaling up looses.
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It maintains the aspect ratio of all image features.
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Unlike the original smart-enlarge.scm, this alters the original image.
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original did not accept an alpha channel
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'''
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temp_image1 = pdb.gimp_image_duplicate(image) # duplicate for in map
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if not temp_image1:
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raise RuntimeError, "Failed duplicate image"
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temp_image2 = pdb.gimp_image_duplicate(image) # duplicate for corpus
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if not temp_image2:
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raise RuntimeError, "Failed duplicate image"
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temp_layer1 = pdb.gimp_image_get_active_layer(temp_image1)
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if not temp_layer1:
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raise RuntimeError, "Failed get active layer"
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temp_layer2 = pdb.gimp_image_get_active_layer(temp_image2)
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if not temp_layer2:
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raise RuntimeError, "Failed get active layer"
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# scale input map down and back, to blur
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width = pdb.gimp_drawable_width(drawable)
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height = pdb.gimp_drawable_height(drawable)
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pdb.gimp_image_scale(temp_image1, width/scale_factor, height/scale_factor)
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pdb.gimp_image_scale(temp_image1, width, height)
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# scale up the image
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pdb.gimp_image_scale(image, width * scale_factor, height*scale_factor)
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# Resynthesize to restore details.
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# Note there should not be a selection. TODO
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pdb.plug_in_resynthesizer(
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image,
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drawable,
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0, 0, 0,
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temp_layer2.ID, # corpus
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temp_layer1.ID, # input map
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drawable.ID, # output map is scaled up original itself
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1.0, 0.117, 8, 500)
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pdb.gimp_image_delete(temp_image1)
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pdb.gimp_image_delete(temp_image2)
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if __name__ == "__main__" :
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register(
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"python_fu_enlarge_resynthesized",
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N_("Enlarge image and synthesize to sharpen."),
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"Requires separate resynthesizer plugin",
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"Lloyd Konneker",
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"Copyright 2000 Paul Harrison, 2010 Lloyd Konneker",
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"2010",
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N_("Enlarge & sharpen..."),
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"RGB*, GRAY*",
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[
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(PF_IMAGE, "image", "Input image", None),
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(PF_DRAWABLE, "drawable", "Input drawable", None),
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(PF_ADJUSTMENT, "scale_factor", _("Scale by:"), 2, (1, 32, 0.1))
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],
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[],
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plugin_main,
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menu="<Image>/Filters/Enhance",
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domain=("resynthesizer", gimp.locale_directory)
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)
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main()
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