[argyllcms] Re: RGB Printer Profiling / Issues with Blacks and Shadows

  • From: Andreas Hebeisen <fotografie@xxxxxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Sat, 6 Aug 2011 12:53:43 +0200

Hi Klaus

Thanks for jumping in on this!

On 06.08.2011, at 12:18, Klaus Karcher wrote:
> If the modified argyll profile produces the blacks you expect and the 
> modified i1Match profile produces dull blacks, you can assume that Aperture 
> has an issue with the black point tag.

Sadly, the problem didn't go away. The behavior of the modified profiles is the 
same.
But thanks to your contribution, we can rule this one out.

Did you, or someone else, ever looked at those two profiles on a LAB-plot?
Attached, you find the Lab-Plot from Apples ColorSync.
The wireframe gamut ist the eyeOne-iMatch profile, the smaller, colored one is 
ArgyllCms. Even here, the latter doesn't seem to reach black at the bottom of 
the give space. Coincidence?

Andreas

PNG image

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