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http://code.google.com/speed/webp/docs/c_study.html http://code.google.com/speed/webp/docs/c_study.html "Three compression methods, WebP, JPEG 2000 and Re-JPEG
by dchest 16y ago
http://code.google.com/speed/webp/docs/c_study.html http://code.google.com/speed/webp/docs/c_study.html
"Three compression methods, WebP, JPEG 2000 and Re-JPEG, were applied to the 900,000 JPEG images contained in the data set. JPEG images were re-compressed with Re-JPEG so that each was as close as possible to a target peak signal-to-noise ratio (PSNR) value."
- jacobolus 16y agoThat assumes that PSNR is a good measure of perceived image quality. I don’t buy it. (Which isn’t to say that WebP isn’t better, but only that that analysis is IMO severely flawed.)