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Jim Rich wrote:
And if I am understanding your points about L*a*b* and monitor profiles, it
is very common with monitor profiles to use XYZ instead of L*a* b*.
Almost always, because displays have often close to perfect additive
behaviour. This means that a shaper + matrix in XYZ space often
models display behaviour quite accurately, and CLUTs in XYZ space
will also be similarly accurate. [There are disadvantages in shaper/matrix
when it comes down to supporting intents, and it can be difficult
sometimes to arrange a B2A table to be much good when its in XYZ
space too.]
None of this has any baring on verifying profile accuracy.
