Hi,
The ICC profile already takes care of chromatic adaptation,
and this is up to the rendering intent. On perceptual,
relative colorimetric and saturation, there is a chromatic
adaptation and a white point scaling, so white always maps
to white no matter which illuminant and paper chromaticity.
On the absolute colorimetric intent, lcms allows you to switch
between v4-absolute colorimetric (observer is fully adapted
to illuminant) or v2-style abs. colorimetric (observer with no
adaptation). That latter is an advanced feature, is
controlled by cmsSetAdaptationState() and shouldn't be
used unless strongly required.
Regards
Marti Maria
The littleCMS project
http://www.littlecms.com
----- Original Message -----
From: "杨海涛" <[EMAIL PROTECTED]>
To: <lcms-user@lists.sourceforge.net>
Sent: Monday, June 11, 2007 4:09 AM
Subject: [Lcms-user] some question about chromatic adaptation and
rederingintent?
Hello Marti Maria,
When I make color convertion with profile and lcms, if I only want to
convert the device depend color to PCS color,
do I need take account of chromatic adaptation? Do I need take account
of white map between two color space? or whether
did the rendering intent already include such process?
Many many thanks,
haityang
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