[Openicc] Google Summer of Code 2009: Oyranos CUPS backend

[Till Kamppeter]

Kai-Uwe Behrmann wrote:
> What I do not know is, how to distinct the colour related PPD options 
> from the non relevant to make selection dependent on say "gamma" but not 
> on "paper size". Would you know a way how to select ppd_attr_t 
> attributes according to their influence on colour?

Principally one cannot read from a PPD option whether it influences 
color or not.

ICC profiles can be associated to choices of up to three options, by 
default to ColorModel, MediaType, and Resolution:

*cupsICCProfile ColorModel.MediaType.Resolution/Description: "filename"
*cupsICCProfile RGB.GlossyPhoto.1200dpi/High-Quality Photo on Glossy 
Photo Paper: "Acme-PhotoStar-RGB-GlossyPhoto-1200.icc"

Instead of MediaType and Resolution two other options can be used with 
definitions like:

*cupsICCQualifier2: Quality
*cupsICCQualifier3: ImageType

See http://www.cups.org/documentation.php/doc-1.4/spec-ppd.html

    Till