I'm trying to find some functionality in GIMP (with or without a plugin, doesn't matter) that can take an image of several solid color shapes separated by white space and "grow" those shapes outward until they completely eliminate all white space on the canvas. I believe this functionality could be accomplished with a voronoi diagram, but I can't seem to find anything in the GIMP plugin registry or included filters that accomplish this. Anybody have suggestions?
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You don't describe how you want your colors to behave when they overlap - but you can try either the filters->generic->erode filter, or filters->distort->value propagate, with the "more black" option. Repeat the application of the desired filter by pressing ctrl + f at will. If you want a more specific behavior for when colors meet each other, you will have to write our own filter, I think.
jsbueno
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