[Openicc] linearisation targets, Argyll, G7

[Gerhard Fuernkranz]

Graeme Gill wrote:
> Argyll currently uses the CGATS format for the display calibration
> curves. The main attraction about using (say) an ICC device link
> as a format for calibration curves is that they can then be linked
> into a color transformation link path using current tools.

But one must be careful. If the output of the linearization curves
drives directly the halftone engine, then the curves are likely not as
well-behaved and smooth, as it would be necessary for including them in
the multi-dimensional LUT of a color transformation link path. Thus it
is IMO important to make sure that they are are not included in the
multi-dimensional LUT, but still applied separately after the CLUT.

Regards,
Gerhard