Mike,
an null "3D grid" is not defined. It is legal by an CMM to reject because
of this state. The null "3D grid" profiles of lcms are for internal usage
only. Better not to export or embed them.
regards
Kai-Uwe Behrmann
+ development for color management
+ imaging / panoramas
+ email: [EMAIL PROTECTED]
+ http://www.behrmann.name
Am 28.02.05, 15:38 -0800 schrieb Mike Russell:
> I would like to allocate a LUT with a null "3D grid", or an identity 3D
> grid, so that the LUT contains only linearization tables and the colorant
> matrix. This is being done in order to "promote" a matrix based profile to
> one with a separate LUT for each intent.
>
> So far I've tried calling cmsAlloc3DGrid() with the lutPoints parameter set
> to zero, then saving this as the appropriate AtoB, BtoA tag.
>
> The resulting profile looks good in ICC Profile Inspector, containing the
> correct tables, etc, but I get an invalid profile error when I use the
> profile in Photoshop.
>
> Any help appreciated.
>
> Mike
>
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