Re: gamut warning failure
Re: gamut warning failure
- Subject: Re: gamut warning failure
- From: Kai-Uwe Behrmann <email@hidden>
- Date: Tue, 17 Oct 2006 11:12:11 +0200 (CEST)
Am 16.10.06, 19:56 -0700 schrieb Marco Ugolini:
> In a message dated 10/15/06 3:51 PM, eugene appert wrote:
>
> > So , am I right in assuming that if both Colorthiink and Adobe are using the
> > same table to ³infer² the gamut range of the output profile then there would
> > be no explanation for any discrepancy between them?
That table would be probably the same. But, provided that I never used
ColorThink before, I would expect ColorThink to include the monitor
profile as well. And there is a decission to been made. Does the user want
to be warned about the image colours to output colour space only or to be
warned about the monitor failing too?
In times with poor displays compared to output media, one could expect to
simply ignore the monitor and rely only on the out of gamut warning as
Photoshop and similiar tools does. That is, or at least was, in my
opinion straight forward.
With better displays, the monitor could be included as well in the
out of gamut warning. That's what I would guess ColorThink does within its
3D gamut viewer or 3D plotting tool and hence in out of gamut warnings.
An other chance to get confused are different destination colour spaces. A
Lab value in a colour selector might be compared to a standard output
profile to mark out of gamut colours, while a display of a image in the
same application simulates a different output colour space.
No one would expect the colour selector to switch between various output
spaces while moving over different images.
One very simple approach to avoid the later mixed colour space trouble is
to automatically convert each image into one standard editing colour space
at load time. That would be similiar to the sRGB way of colour management
in MS ICM. If users want to use different colour spaces at the same time
they have to understand how it works. Unfortunedly there is much to learn
or to fail.
regards
Kai-Uwe Behrmann
+ development for color management
+ imaging / panoramas
+ email: email@hidden
+ http://www.behrmann.name _______________________________________________
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