I recently discovered a weird behaviour with RGB printer profiles built using i1Profiler. I am currently using the latest version, 1.5.0, and I have seen the same issue with earlier versions too.
The perceptual table for version 2 profiles are slightly lighter than the same table for version 4 profiles. In other words, the perceptual rendering intent is slightly darker (in certain regions, mostly in the mid tones) for V4 profiles than V2.
The relative colorimetric tables are identical regardless of profile version.
Has anyone else noticed this?
Not sure if this is a bug or if it is due to the way the perceptual tables are calculated in v4 profiles. I gather that a
Perceptual Reference Medium Gamut is specified for version 4 profile calculation. Perhaps it has something to do with this?