[argyllcms] Re: building lookup table based display profiles
- From: Graeme Gill <graeme@xxxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Tue, 11 Oct 2011 12:10:22 +1100
Khan Gul wrote:
> I am new to color management and have a question regarding lookup table based
> XYZ to RGB
> transformation especially in the context of ICC profiles.
>
> According to ICC specs, the lut16 type contain a matrix(3x3), input curves,
> output curves, and a
> clut.
>
> Can you kindly tell me how can I calculate each one of them (just an example).
>
> The ICC specs provides an explanation for RGB to XYZ but not the reverse. I
> think its not a
> simple inverse relationship. Can you kindly explain with the help of an
> example.
There's lots of sample code out there, from Argyll's icclib, to lcms and the
ICC's
sample code. Other details are rather scattered. A book that goes through a lot
of
this is Phil Green's "Color Management, Understanding and Using ICC Profiles"
<http://books.google.com/books/about/Color_Management.html?id=Ggy2yjPIEGwC>
Graeme Gill.
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