[argyllcms] Re: Absolute minimum number of patches for a matrix/TRC monitor profile
- From: Roger <graxx@xxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Thu, 04 Feb 2010 07:27:02 -0500
But Graeme,
For straight purposes of demonstrating the ICC machinery, would this still
be acceptable for Argyll?
Roger
> Roger wrote:
> > The absolute bare minimum of patches to create a display ICC profile
> could
> > be :
> >
> > 1) white (RGB 255, 255, 255)
> > 2) black (RGB 0, 0, 0 -- not sure that this is really useful)
> > 3) gray (RGB 127, 127, 127)
> > 4) red (RGB 255,0,0)
> > 5) green (RGB 0,255,0)
> > 6) blue (RGB 0,0,255)
> > 7) cyan (RGB 0,255,255)
> > 8) magenta (RGB 255,0,255)
> > 9) yellow (RGB 255,255,0).
> >
> > Perhaps a few other measurements like 50% Red and 50% Green and 50%
> Blue.
> > But not more than that.
>
> Not really, unless it is a known linear light device. The problem
> is that you can't characterize the tonal response with the above.
>
> You need to add the L* dimension to the above.
>
> Graeme Gill.
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