Re: Chicken or the egg?
Re: Chicken or the egg?
- Subject: Re: Chicken or the egg?
- From: neil snape <email@hidden>
- Date: Tue, 13 Aug 2002 08:34:55 +0200
on 13/08/2002 03:28, Graeme Gill at email@hidden wrote:
>
It actually depends a lot on the gamut clipping behaviour
>
of the CMS. When there is a distinct difference between the
>
input and output yellow colorant colors, many CMS will weight
>
hue error much more highly than saturation or lightness,
>
giving "dirty" yellows. A CMS that weighs saturation errors
>
more highly, will give cleaner yellows.
This is good to know.
>
Reducing the maximum yellow density shouldn't improve anything,
>
unless the CMS is broken.
Ah, but I was talking about visually reducing the cyan dot in the yellow by
having a limit of less yellow will reduce the cyan dot by falsifying the
lightness regardless of the color correctness of the profiles yellow
correction. This is not a colorimetric correction of the inks (impossible)
nor a cms related fix, merely a visual trickery to eliminate cyan dot in
yellows. It does make a profile with less visual cyan dot albeit not
colorimetrically correct. So the CMS thus plays a bigger role than one
would image in this as well.
Neil Snape email@hidden
http://mapage.noos.fr/nsnape
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