[argyllcms] CMYK Profile Problem

  • From: qcore@xxxxxxxxxxxxxxxx
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Thu, 11 Mar 2010 23:09:56 +0000

I wanted to build a couple of profiles based on PSO_LWC_Improved_eci with modified black generation curves.


However, every profile I build using colprof seems to give me ugly warm shadows instead of the neutrals I'm expecting :(

No matter how I set the black curve the yellow and cyan inks look as if they've swapped so I'm getting values like 50c 54m 60y 90k.

I gave up with the data in the profile and used fakeread instead -- but got similar results.

Thinking I'd screwed up somewhere I repeated the process, running identical commands but substituting the ISO Coated v2 (300) data and everything worked as expected.

Has anybody else worked with PSO LWC Improved and noticed anything odd?

--
Martin Orpen
Idea Digital Imaging Ltd


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