[Openicc] CUPS Color Management under Linux gets into distros

[Hal V. Engel]

On Sunday, February 13, 2011 06:58:51 PM Koji Otani wrote:
> I am not an expert about Color Management. But I would do what I can
> do.
> As for Rendering Intent,
> it seems that there is a patch by other.
> --------
> Koji Otani
> 
> From: Till Kamppeter <till.kamppeter at gmail.com>
> Subject: Re: [Openicc] CUPS Color Management under Linux gets into distros
> Date: Thu, 10 Feb 2011 19:29:08 +0100
> Message-ID: <4D542E74.3050408 at gmail.com>
> 
> till.kamppeter> On 02/10/2011 07:40 AM, Koji Otani wrote:
> till.kamppeter> > As Mr. Engel wrote, poppler doesn't support rendering
> intent in PDF till.kamppeter> > content,
> till.kamppeter> > INTENT_RELATIVE_COLORIMETRIC is hardcoded in it.
> till.kamppeter> > This is because that too many changes on poppler were
> needed till.kamppeter> > when I created patch for poppler.
> till.kamppeter>
> till.kamppeter> Otani-san, could you continue working on the Color
> Management support till.kamppeter> of Poppler, adding the missing
> features? This would be great. till.kamppeter>
> till.kamppeter>    Till
> till.kamppeter>

Yes a patch was created in response to the bug report I opened.  It appears to 
be doing the right thing when you look at what is happening in the code but 
when run against pdf files that have tests for rendering intent it fails the 
tests.  GhostScript also fails that same test so I am not sure what is going 
on.  The only thing I can think of is that perhaps the tests are intended for 
CMY(K) output since I only tested this with RGB output at this point.  Does 
that seem plasible?  Kai-Uwe were your tests of this with RGB output or did 
you test with CMY(K) output?  I will test this in tomorrow when I have some 
time to look at it.

Hal 
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