Re: Rendering Intents
Re: Rendering Intents
- Subject: Re: Rendering Intents
- From: Andre Schützenhofer <email@hidden>
- Date: Thu, 29 Aug 2002 14:32:26 +0200
am 29.08.2002 0:28 Uhr schrieb Quentin Bargate unter email@hidden:
>
At the moment, I am inclined to think that the Rel Colormetric
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profile gives significantly better results.
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This seems to run contrary to the usual dogma that says use
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Perceptual for photographs.
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These are just preliminary observations, but if anyone else has found
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similar results, I'd be interested to hear about them.
Quentin,
your observations are similar to mine. From a colorimetrical point of view
related to source/destination transforming issues: If the colorspace you are
converting to contains most of the source space colors (or at least if it is
similar or bigger), relative colorimetric gives better results because
clipping does not play a (visible) role.
Chosing perceptual will end up in shifting of colors (just like you noticed)
due to gamut compression or - in some cases - gamut expansion. Since all
manufacturers of profile-creating-tools follow different gamut mapping
strategies, the results will be different, which does not mean bad, just
different.
If you want to maintain the look of the image in a colorimetric sense, I
would chose relative colorimetric with black point compensation switched on.
Your destination colorspace should be large enough. Or use a profile created
by a program which perceptual rendering results matches your taste.
Just like Andrew Rodney wrote in a post answering yours, use the one you
like the most!
And fortunately, there will be a solution to the
different-perceptual-rendering-intents-problem soon.
Regards, Andre
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