Datacolor User to User Support Group.

--- In colorvision_group@yahoogroups.com, CDTobie@... wrote:
 
> 
> Given that they are using ICC color management (which assumes D50, 2
degree 
> observer) how would they do that, beyond adding whitepoint transform
functions, 
> as monitor profiles used with Photoshop already do?
> 

A reverse transform from the D50 partialy adapted "source" state using
a  varient von Kries transform to a fully adapted space, then a
forward transform from that space to the target illuminant space.  For
the moment I'm going to ignore the surround effect and just go for
assuming a neutural background.

Its really not ICC management but adapting the picture to be viewed
correctly under a different illuminant.  I've almost finished my Java
source which can transform from one illuminant to another.  When its
done I can post some samples we can print out and evaluate.  If it
works well I can re-write in C++ and consider what to do with it :-)

Wish me luck!