Kai-Uwe Behrmann wrote:
as far as I understand CIE*Lab is an way to describe colors, which may or
may not be physically existent.
My question is which is the colorspacebody of physically ideal
refrective media? What is the belonging gamut of Lab?
Is it possible to shrink such an colorspacebody to an special reflective
media?
Mike Pointer has a database of physically realisable surface reflectances, ie. the
LAB values of colours you can actually make and paint onto surfaces. I've googled, but
failed to find a link, sorry :-( but maybe someone here knows a link to his work?
One way to calculate is to use XYZ as I would think it represents what is
phylically possible. (The horseshoe derives from it.)
I think that would give you the colours you can make by mixing lights, which is a
much larger gamut than surface reflectances.
John
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