Re: Color calibration in X

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On Tue, Jan 16, 2001 at 01:18:42PM -0500, oliver <oliver@xxxxxxxxxxxxxxxxx> wrote:
> 	Looking at Xcms manpages, I'm not entirely clear on what it's goal in life
> is. It seems to lack any mechanism for converting arbitrary rgb data like a

Well, you can convert rgb to other colourspaces (and vice versa and even
weirder things), so it is certainly possible to do that.

> > > 	That is, is it possible to do anything meaningful with
> > ICCs under X?
        ^^^^^^^^
> 	Windows? Photoshop ;) I don't know what the focus of the gimp is, but color

Windows has been ported to X? Any pointers? ;) (sorry, had to...)

> 	I wonder what the impact would be on performance, ignoring Xcms stuff, to

Why ignore Xcms? It is a fairl extensive API. under-used, maybe buggy, but
nobody knows.

> do a 3x3 matrix transform on every pixel before displaying it. With luts I
> guess this amounts to three look ups and two adds per component per pixel,
> or something like that, which seems pretty cheap.

Patches welcome (oh yes). Also, "just grabbing icc profiles" is easier
said than done, since there are a lot of patent issues around colour
conversion/calibration/matching.

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