[Lcms-user] PDF ICCBased color space to RGB

[Dmitry S. <dar...@gm...>]

Hi, Little CMS users and developers.

I just discovered the library and tried to find anything suitable about
converting color from one space to other in user manual. There are
functions like:

        cmsSetColorSpace()
        cmsXYZ2Lab()
        cmsLab2XYZ()

and similar ones. I should create/load a profile, specify color space and
feed one of these functions with, say, values for 3 components in ICCBased
color space to receive a simple RGB values, shouldn't I? I'm talking about
ICCBased because it's defined in a PDF file as a stream of data. I can
extract it and decode, however, I have no clue how to process 3 color
components of this space into a simple RGB color using this data.

May you point me to a specific page in the manual or describe any details
I'm missing?
Thanks.

Little CMS user manual: http://www.littlecms.com/LittleCMS2.8%20API.pdf (p.
51, p. 54)
PDF 1.7 reference:
https://www.adobe.com/content/dam/acom/en/devnet/acrobat/pdfs/pdf_reference_1-7.pdf
(p. 252)

Regards,

- Dmitry