Re: GaMapICC v0.5
Re: GaMapICC v0.5
- Subject: Re: GaMapICC v0.5
- From: Graeme Gill <email@hidden>
- Date: Wed, 27 Jan 2010 17:33:26 +1100
Marco Ugolini wrote:
I tested the application by converting an RGB file to a custom CMYK profile
that I have used for one of my clients.
I used an image-specific gamut mapping strategy with 100 percent gamut
filtering, for print evaluation environment viewing conditions.
I have posted the results at this URL:
<http://files.me.com/marcougolini/8mxtcb>
Hi Marco,
I doubt that image specific gamut mapping is going to do anything
special with your particular image. It's gamut almost looks like
it's already been clipped to the destination space (or very near), and
there are no interesting colors that are not of a similar hue to colors
that lie on the gamut surface. Given the nature of it, a colorimetric
mapping will look pretty close to the original. Image specific
gamut mapping shows an advantage where there are colors in an image
that are within the destination space gamut, but have a similar hue
to source colorspace colors that lie outside the destination gamut.
I've done a trial with typical settings I'd use (after fixing a glitch
in the image gamut code that Klaus drew to my attention), and also created
a soft proof back in AdobeRGB space here <http://www.argyllcms.com/Axe.zip>,
and while there are some differences to your result, it all looks rather
similar.
Graeme Gill.
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