I would like to change chromium's ImageDiff to reflect the magnitude of pixel changes. Currently, if the pixel has any difference, the entire pixel is marked as 100% red. I'd like to change it so that miniscule difference are 20% red and large differences are 100% red. Looking at the code for CG, gtk and Win versions of ImageDiff, I think they already do something similar. Is this correct?
Would anyone be opposed to such a change? See the attached image for an example of how this could assist in debugging regressions. It would certainly be enormously useful in my color management efforts. Thanks, Tony The CL in question is https://bugs.webkit.org/show_bug.cgi?id=89253
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