Hi,

Quick question on lcms handling of out of gamut checking.

I notice that when I proof a CMYK colour to RGB, using the same proofing
profile as input CMYK profile, some colours are marked out of gamut. For
example, C100 M100 Y0 K0 using SWOP as the CMYK profile and sRGB for the
RGB, is marked as out of gamut. (perceptual intents)

Is this supposed to happen?

I would have thought that if my input profile and my proofing profile
are the same, then all colours are by definition in gamut.

It seems to especially crop up in dark colours.

(fwiw, CorelDRAW's colour management, does not mark this colour out of
gamut under these circumstances)

cheers

dc


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-- 
David Purton
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For the eyes of the LORD range throughout the earth to
strengthen those whose hearts are fully committed to him.
                                 2 Chronicles 16:9a

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