[argyllcms] Re: sRGB/AdobeRGB98 vs Lab (was Verifying profile quality...)


You can choose other energy rules, and they would probably
give other results. For instance, one could assume a reflective
environment illuminated with a particular white spectrum (ie.
completely flat, or daylight of some kind), and then compute
the gamut of every possible spectrum that could be produced
by subtracting from the illuminant. But this gamut would
exclude large areas that could be produces by quite practical
(and safe) emissive devices.

Other people have (perhaps) tackled this quandary. I'm not
sure what conclusion they came to.
I can see it would be useful perhaps to have two shapes then, i.e keep them separate. One for 'safe emissive conditions', and one for typical reflective conditions, assuming D50 white point with optimal lighting, perhaps as you might find in a gallery [and not the average home loungeroom].

Keeping them separate then reflects the true situation, ie that looking at monitors and looking at prints is no where near an equivalent experience, and would also stop people from making inappropriate gamut comparisons.



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