I've just done an experiment. Someone mentioned on Google+ that he uses sRGB_IEC61966-2-1_black_scaled.icc from http://www.color.org/srgbprofiles.xalter. Since I noticed some weird 'inversions' (dark areas becoming brighter than their surroundings) in high-contrast versions of a photo with the default 'web-safe' if LCMS2 was turned on, I decided to follow his advice. I exported 3 versions of a photo (each version has a different set of operations applied). I tried all combinations: LCMS2 on vs off web-safe vs black_scaled perceptual vs relative
So I ended up with 24 output files. I found that the 'perceptual' and 'relative' files were the same size; they looked the same in Geeqie (colour management turned on, display profile loaded); and after using "exiv2 rm *jpg" to delete all metadata, the pair of images was binary equal. I'd think this sounds like a bug, but I do admit I know very little about colour management. Your thoughts? Thanks, Kofa ------------------------------------------------------------------------------ _______________________________________________ Darktable-users mailing list Darktable-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/darktable-users
