[Openicc] Re: color-policy vs. color-infrastructure

[Lars Borg]

Marti,

Beware that the proposed test is not sufficient. In-gamut colors may 
shift in a round-trip test. Such a test depends on the quality of the 
profile. Most profiles round-trip poorly also for ingamut colors.

Lars


At 10:42 AM +0100 3/16/05, Maria, Marti wrote:
>Hi,
>
>>  Gamut tags are a bit fuzzy at the best of times, and in many profiles
>>  out there they are simply wrong. As a result, they can't generally be
>>  relied upon.
>
>Just for the record, it seems Photoshop is not using the gamut tag
>anymore. Lcms is actually using a brain-dead method for inferring gamut
>that works most of times at expense of poor accuracy. The trick is to
>convert values back and forth the colorimetric intent. If color changes,
>then it is outside gamut.