Selecting or deleting in an image by color or color range?

Ben Fisher boinjyboing at
Tue Feb 1 19:40:27 EST 2005


The script worked for everything I tried. I guess in theory it might possibly erase unintended colors, although the odds of this are slim. 

In imagedata the colors are handled as a set of four, with the first entry always being zero.
My solution might, trying to delete the color 0,12,12, end up accidentally turning the color (0),12,12,13 into (0),0,0,13. 

A revised solution would use offset to find matches. If the mod base 4 of the offset isn't 1, then don't replace. This hopefully would fix the problem. Tell me if you need clarification of this.


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