Date: Sun, 5 Apr 2009 23:57:33 +0200 From: Pascal de Bruijn <pmjdebru...@pcode.nl>
On Sun, Apr 5, 2009 at 6:04 PM, Hadmut Danisch <had...@danisch.de> wrote: > Hi, > > just �a proposal for an improvement: This lets get a few things clear. UFRaw's "Color Matrix" is in fact a very small camera specific color profile. This color profile was made by Adobe. They are usually of good quality. User made (downloadable) profile are of greatly varying quality. Quality in the sense of color profiles is pretty weird to talk about in the first place. Accuracy and Prettyness, and likeness to camera JPEGs are often three different and conflicting goals. The quality may well be good in the midtones, but near the boundaries (particularly highlights), a simple linear application of the matrix generates some real uglies (see my infamous ftp://66.92.65.9/pub/crw_3888.crw sunset shot). Changing the gamma or linearity won't help here. -- Robert Krawitz <r...@alum.mit.edu> Tall Clubs International -- http://www.tall.org/ or 1-888-IM-TALL-2 Member of the League for Programming Freedom -- mail l...@uunet.uu.net Project lead for Gutenprint -- http://gimp-print.sourceforge.net "Linux doesn't dictate how I work, I dictate how Linux works." --Eric Crampton
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