[cairo] Subtractive API, part 1

[ecir hana]

On Wed, Feb 3, 2010 at 7:41 AM, Chris Murphy <lists at colorremedies.com> wrote:

> www.color.org
>
> Find and download the current 4.2 spec. You'll find it referred to as the "named colour
> class" profile. It contains the name of the spot color, a PCS (either XYZ or L*a*b*) value,
> and an optional output device specific value (such as for a particular press or proofing
> condition, could be RGB or CMYK, etc.)

Thanks, also for explaining what the specs actually say.
Btw, it's called "Named color profile", chapter 8.9.

> These are not used for making color separations, but just for dealing with spot color solids.

This is a bit off-topic, but what to do if I would want to print a
black-and-white photograph in duotone (gray and black)? Do profiles
for such situations exists?