New reason for XYZ

[Cyrille Berger]

> The difficulty arrises by the usable points in the conversion LUT. As XYZ
> is very huge, the used point in the transforming LUT to tell about the
> right transistion are a few only. With fewer points less accuracy ...
>
> To visualise look at the devicelink tables in ICC Examin.
Hum, but isn't XYZ use as a PCS ? I mean when doing color transformation, 
don't we do something like RGB -> XYZ -> ( eventually LAB) -> something 
else ? So RGB -> XYZ -> RGB should return the same value, or have I missed 
something (which is surely the case ;) ) ?

-- 
Cyrille Berger