[Openicc] Linux CM ideology, was: meta data in test chart

[Graeme Gill]

Chris Murphy wrote:
> the wide gamut displays aren't clearly converging on a wide gamut aimpoint. Their marketing
> materials make it sound like they are targeting Adobe RGB (1998) but they do this in a very
> circumspect manner with numbers like "reproduces 95% of the Adobe RGB gamut". OK well if I have
> two displays that reproduce 95% of the Adobe RGB gamut, they could still be rather substantially
> different from each other.

The 95% is pretty bogus, since they "measure" it as 2D area on an xy chromaticity diagram.
Not only is this missing a whole dimension, but the xy diagram is highly visually non-linear,
so the area has poor practical correlation.

Graeme Gill.