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Talk:Percentage difference between images: Difference between revisions
Talk:Percentage difference between images (view source)
Revision as of 22:12, 1 September 2011
, 12 years ago→Clarify "Difference"?
(→Disagreement research project: avoid oops) |
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How come no one ever asked what the definition of difference between images is? Sample programs seem to be calculating sum of abs(R-R') + abs(G-G') + abs(B-B'), which is a useless quantity in image processing. --[[User:Ledrug|Ledrug]] 03:57, 27 July 2011 (UTC)
: I wondered about this. It's okay as a simple benchmark / test I guess.
:: I actually liked the example (REBOL) that produced the differenced image. That would have been a bit more interesting. Unfortunately the author didn't explain what the code that's enhancing the contrast is doing at the pixel level so not too many of us could actually repeat it if we had to code it --[[User:Dgamey|Dgamey]] 22:12, 1 September 2011 (UTC)
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