PIL ImageChops.difference not working correctly(?)

Newsgroups	comp.lang.python
Date	2013-02-18 21:49 -0800
Message-ID	<66d9a4fb-2f86-44c2-a393-cf7422ac5f5e@googlegroups.com> (permalink)
Subject	PIL ImageChops.difference not working correctly(?)
From	Jon Reyes <everystepsayes@gmail.com>

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I have two images generated from ImageMagick that I need to compare through PIL but when I compare them it says that the two images aren't identical. I tried viewing the supposed "difference" but all I see is a black image which means the two image are identical. ImageChops even returns the region where the supposed non - identical marks are, but there's nothing there. Any thoughts?

I just do this to compare if the two images are identical:
diff = ImageChops.difference(img1, img2)
if diff.getbbox() == None:
    #then the images must be the same

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PIL ImageChops.difference not working correctly(?) Jon Reyes <everystepsayes@gmail.com> - 2013-02-18 21:49 -0800
  Re: PIL ImageChops.difference not working correctly(?) Jon Reyes <everystepsayes@gmail.com> - 2013-02-18 22:28 -0800

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