Hello Ernst
On 1-Apr-2011, Ernst Dinkla wrote:
Couldn't it be just the mismatch of an FBA effect of the paper and a
profile not precisely compensated/adapted for it ?
The fluorescent brightening effect in papers is much more varied than
the compensations used suggest.
Other than using -f I don't know what one could do - unless tweaking
with observer parameters, spectrum, etc. But it's my feeling that it's
a more subtle matter (not so big, of course).
A more or less common CMYK process will never allow a saturated RGB blue,
so the resulting closest match is a de-saturated blue [unless using
saturation intent, maybe ?] And a de-saturated blue in my experience always
tends to look more purplish than just light blue to the eye. This also happens
on monitor with RGB: I often find useful, when creating light blues, to add a
little amount of green to compensate for this purplish effect. So maybe it's
just my eye, or a common and complex psycho-visual effect.
/&
