[cairo] Spot colors (and CMYK)

Bill Spitzak spitzak at gmail.com
Tue Feb 23 17:58:35 PST 2010

I'm still confused. Does a "profile" contain a translation from every 
possible spot color to CMYK?

I was under the impression that this is not part of a profile, though 
the profile will tell how to render something in CMYK or some other 
space that you can specify the equivalents of the spot color in.

Then again, there appears to be an api by which a set of spot colors is 
defined as an all-new color_space_t, therefore it is true that the 
colorspace defines the translations. It's just that this color space is 
built by the application, not by reading some device specification?

ecir hana wrote:
> On Tue, Feb 23, 2010 at 9:27 PM, Bill Spitzak <spitzak at gmail.com> wrote:
>> Chris Murphy wrote:
>>> There aren't many such spot colors. There are many more common spot colors
>>> that can be defined as LAB just fine and displayed well.
>> In that case there is no need to send the spot color to Cairo at all. Just
>> send the equivalent color.
> Just change "CMYK" for "spot" in what I just said. Also, LAB is not
> the same as spot color - while some spots might look like some LAB,
> some other spots do not.

More information about the cairo mailing list