On Wed, Mar 25, 2009 at 6:21 PM, Alexandre Prokoudine wrote:

> 1. Client brings an image for poster in CMYK which needs color
> correction. Urgent work, not time to ask him to redo it. Double color
> space conversion is out of question. So he had to use Photoshop from
> VMWare.
> 2. You have a newspaper where first page should have a two-color
> photo: black (C=0%M=0%Y=0%K<=100%) and blue (C<=100%M=0%Y=0%K=0%).
> separate+ however separates black to 4 channels.
> 3. Some print houses set limit to overall sum of colors, for example
> 180%. So if you take Cyan 100% + Magenta 100% (already 200%) + a
> little of K and Y this will result in unnatural colors in a newspaper.
> 4. Live density control for each CMYK channel is a must (Scribus/SVN
> has that in preview dialog).

I was reminded that I actually forgot

5. Part of an image should be b/w and the rest should be colorized
with just one tint. E.g. Cyan + Black for sea. separate+ and exporting
are of no help here.

Gimp-developer mailing list

Reply via email to