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List:       gimp-print-devel
Subject:    Re: [Gimp-print-devel] ICC support for gutemprint
From:       Robert Krawitz <rlk () alum ! mit ! edu>
Date:       2011-10-10 11:37:16
Message-ID: 201110101137.p9ABbGDH011143 () dsl092-065-009 ! bos1 ! dsl ! speakeasy ! net
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On Mon, 10 Oct 2011 16:21:35 +0800, wei li wrote:
> Hi all,
>
> Recently I'm working on ICC profiles that used by many CMS, then I try to
> implement ICC support in gutenprint. I have successfully read the B2A0 tag
> in the output profile and made the RGB->CMYK conversion. the result is
> represented by percentage of C ¡ ¢M ¡ ¢Y ¡ ¢K channels £ ¬e.g. RGB color 255,128,64 is
> converted to C 0% M 50% Y 75% K 0% through profile workflow. The question is
> how to use this four value. I tried to simply scale this values to 65535, in
> that case, 0, 32767, 49151, 0. But the picture printed is obviously not
> right. Can anybody help how to do this ? Thanks!

What results are you getting?

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