Re: epson 2200 > blackpoint compensation
Re: epson 2200 > blackpoint compensation
- Subject: Re: epson 2200 > blackpoint compensation
- From: Roger Breton <email@hidden>
- Date: Tue, 16 Dec 2003 10:27:25 -0500
Graeme Gill wrote:
>
BPC is really a hack to get around the poor to nonexistent gamut mapping
>
in the "expected" ICC workflow (poor in the case of Lut based profiles that
>
support 3 intents, and the gamut mapping is performed without the knowledge
>
of the source gamut, nonexistent in the case of most display profiles).
>
>
A real gamut mapping process will map the luminance range (including
>
white and black) appropriately for the chosen intent.
You mean map ReferenceRGB 255,255,255 to DeviceCMYK 0,0,0,0 for the white
point "luminance" and ReferenceRGB 0,0,0 to DeviceCMYK c75, m68, y67, k90
(MaxTIL300% for US WebCoated SWOP v2) for the black point "luminance"?
How would knowledge of the source gamut influence this conversion
differently?
Regards,
Roger Breton | Laval, Canada | email@hidden
http://pages.infinit.net/graxx
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