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Re: Rendering intents in source profiles?
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Re: Rendering intents in source profiles?


  • Subject: Re: Rendering intents in source profiles?
  • From: Uli Zappe <email@hidden>
  • Date: Fri, 25 Jul 2008 22:20:39 +0200

Hi Roger,

I suspect, to really do a good job of gamut mapping, you would not want to have a "global" approach but a "selective", "local" approach? If 100 means all farben kompressed, surely all colors could not be compressed the *same*? Or uniformly? Across all hue angles?

I would imagine that depends exactly upon whether or not the strategy of a PRMG or alternatively of output profiling for a specified working space is applied.


If it is not applied, the profiler has no choice (at least theoretically) but to compress all Lab colors "uniformly" in the sense that any possible Lab color must be mapped (not clipped) to the target space in the 100 setting.

If, OTOH, one of the above strategies is applied, then of course the mapping should relate to the specified working space or medium gamut. I.e. if this gamut contains e.g. highly saturated blues more than it contains highly saturated reds or greens, but the target gamut does not, then of course (I think ...) the blues would be compressed more. But that's only what I'm guessing since it seems logical ...

            Bye
                    Uli
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  Uli Zappe, Solmsstraße 5, D-65189 Wiesbaden, Germany
  http://www.ritual.org
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  Fax: +49-700-ZAPPEFAX
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References: 
 >Re: Rendering intents in source profiles? (From: Roger Breton <email@hidden>)

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