[cairo] Subtractive API, part 0

[Francois Robert]

Andrea Canciani wrote : 

> PS: uh! what are good references about color management? 
> Currently I'm reading some of the ICC specification (plus a 
> few other "standards", mainly related to YCrCb spaces). Thanks again

If you can read italian, here is a book about colorimetry and color
science which may help you give you valuable background information :
MISURARE IL COLORE
A cura di Claudio Oleari
ISBN: 8820341263
Ed. Hoepli

Computer-based CMS proper are not part of the book, but physics, biology
and psychology are.