Re: [Lcms-user] is icc profile portable to wcs

[Graeme G. <gr...@ar...>]

sha...@wi... wrote:
> In question 2 you said LUTs in ICC profile contain object measurement
> data. 

ICC profile contain tables that are created from object measurement
data. It's possible then (generally) to use those tables to re-create
object measurement data in a way that would be suitable for a native
WCS type profile.

 > In question 3 you said ICC does not create    "transforms on the
> fly" but stores the transforms during profile creation. Where are these
> transforms stored? Are these transforms not stored in the LUTs?

Yes, they're stored in the A2B and B2A Luts.

> Why have WCS split the profile into three viz device, CAM, and gamut.
> Why could nt it keep it in a single profile as ICC profile did.?

Flexibility. You can mix and match each of these, reducing the
combinatorial explosion that would result if you tried to package them
all together.

Graeme Gill.