Axel Robert wrote:
I’m trying to answer according what I already read about the V4 ICC profiles. This is related to the ICC White paper#2 March 2014: using the sRGB_ICC_v4_appearance.icc profile and White Paper #26 Using the sRGB_v4_ICC_preference.icc profile.
They both indicate a better use of rendering intents when comes the time to separate from RGB to CMYK and a more precise definition of the PCS.
There have been various attempts to show the potential of using the PRMG, but: 1) There's nothing to stop someone using the PRMG in a V2 profile. Indeed, some existing V2 profilers may have been doing something quite similar, and maybe the PRMG was an attempt to formalize this approach. 2) You can get even better gamut mapping results by creating a gamut mapping for a specific source profile -> destination profile combination, avoiding any intermediate Gamut. This doesn't require V4. Graeme Gill.