User talk:Oofoe

From Rosetta Code

Percentage of difference between 2 images

One trick that is used when displaying differences between two images is to rebase the image so that the "zero" color is actually #808080. Then you can show differences that are both positive and negative. –Donal Fellows 11:08, 29 December 2009 (UTC)

Hi! Thanks for the suggestion! Unfortunately, because the differences were so small, the rebased image was fairly uninteresting, so I settled for heavy contrast enhancement instead. I have updated the image and hopefully it's easier to see now. -- Oofoe

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