Re: [Lcms-user] Using LCMS on hardware

[Kai-Uwe B. <ku...@gm...>]

The most obvious way would be to create a transform with lcms in the usual=
=20
way. You may use proofings multiprofile transforms with all bells and=20
whistles and convert into a device link. This profile should include a 3D=
=20
LUT to use later, possibly after some conversions, in your cg shader.

HDR is only possibly with matrix profiles, best without gamma and outside=
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the above described way.

If you consider going open source, the final application could be of=20
general interesst.

regards
Kai-Uwe Behrmann
--
development for color management=20
www.behrmann.name + www.oyranos.org + www.cinepaint.org


Am 05.03.07, 08:34 -0300 schrieb gga:

> I am currently using LCMS for ICC profile reading and color correction.
>  All is fine.
>=20
> However, for speed purposes, I am now trying to use LCMS just as an ICC
> profile reader, leaving the color correction to be done on the gfx card
> with Cg shaders.
>=20
> Therefore, I am looking into LCMS api to see if it can give me the
> profile data in raw form.
> Ideally, I would like to call some lcms functions that would tell me how
> many 2d/3d luts are used, if there is any matrix transform, etc.  and
> then obtain the values of those, so I can use them to feed my shader.
>=20
> However, the docs for the API seem somewhat incomplete.  Can anyone
> roughly point me out to how could I do this?  (btw, I will be dealing
> mainly with RGB->RGB transforms, so I really don't need to handle CMYK
> and similar transforms).
>=20
>=20
>=20
> --=20
> Gonzalo Garramu=C3=B1o
> gg...@ad...
>=20
> AMD4400 - ASUS48N-E
> GeForce7300GT
> Kubuntu Edgy
>=20