[argyllcms] Re: False colors with shaper/matrix display profiles
- From: Oliver Schulz <whisp@xxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Wed, 30 Aug 2006 19:06:39 +0200
> > Oh, yeah, forgot that info in my original posting:
> > Input profile was the standard sRGB profile in all cases.
>
> Are you sure ? If you do an iccdump on it, are the
> 'rTRC' etc. tags size 2060, or something else (ie. like 14) ?
I embedded the sRGB profile in the input picture, so yes.
'iccdump -t rTRC -s input.tif' results in:
Embedded profile found at file offset 1876466 (0x1ca1f2)
Curve:
No. elements = 1024
> The real sRGB has shapers, but there are some false sRGB
> profiles floating about that have gamma curves instead.
I got the sRGB profile out of the Adobe profiles package.
Profile Info: Copyright 1998 by HP, description is
sRGB IEC61966-2.1. Profile file size is 3144 byte,
md5sum is 1d3fda2edb4a89ab60a23c5f7c7d81dd.
> > Yes, Scribus, tifficc and ImageMagick all use lcms, i think.
> > So, a bug in lcms?
>
> Probably.
Hm, I'll look for a newer lcms version.
Oliver
Other related posts:
