Hi, seems like you switched the commandlines of the utilities - not a big deal, I corrected this in the quotings below to prevent misunderstandings. But I also notice you use perceptual intent with Argyll, and relative with LCMS. You should make sure to use same intents (although the intent did not seem to make a difference in this case).
> Argyll does something entirely weird with this commandline: > cctiff -v -p -i p canon_eos_400d_standard.icc -i p > sRGB_IEC61966-2-1_noBPC.icc -e 1 IMG_3562.tif IMG_3563_argyll.tif The result I get with Argyll is like yours and virtually the same I get with Photoshop (too dark, clipped shadows). You are using the "noBPC" (without black point compensation) sRGB profile, any specific reason for this? > LCMS works, but the colors seem a bit off when compared to the > in-camera results and DPP: > tifficc -v -i canon_eos_400d_standard.icc -t 1 -c 2 IMG_3562.tif > IMG_3562_lcms.tif I see you use the LCMS internal sRGB profile by not specifying an input profile on the commandline (and the input file also has no embedded profile). LCMS internal sRGB seems to be a "with BPC" profile, so results can't be the the same as Argyll and Photoshop. When I specify the "noBPC" sRGB profile like this for LCMS: tifficc -v -i canon_eos_400d_standard.icc -o sRGB_IEC61966-2-1_noBPC.icc -t 1 -c 2 IMG_3562_NOPROFILE.tif IMG_3562_lcms.tif I get the same result as Argyll and Photoshop. Conversely, when I use the "withBPC" profile in all cases, results are virtually identical. Those results are still different from the Canon DPP image, but I am pretty sure the reason is additional processing inside the Canon software (like you also suspected). > I have samples (including the profile) available here (I'm converting to > sRGB): > http://files.pcode.nl/temp/icc/ > > If somebody has access to Photoshop, and the time, I'd love to see > what the results > look like when Photoshop applies canon_eos_400d_standard.icc as source profile > to IMG_3562_NOPROFILE.TIF, converting to sRGB. > > Regards, > Pascal de Bruijn Regards, Florian Höch ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Lcms-user mailing list Lcms-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lcms-user
