Re:Linux doesn't have Photoshop
by wtracy on Saturday December 28, 2019 @05:25PM
(#21902236)
Not a color expert, but every color encoding scheme is going to have a slightly different gamut. Meaning, CMYK can encode colors that RGB can't, and vice-versa.
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Negative color values can be used to cleanly represent colors outside the standard gamut. But I'm not sure that CMYK even has anything like a standard gamut associated with it - so the details of that "conversion" might depend on what the CMYK data is for.