Mike Russell schrieb:
Marti wrote:
That is indeed a very difficult topic. For properly inverting a LUT you have to
know the gamut boundaries, and then proceed differently inside or outside
gamut. ..
Thanks for your answer. This explains why some profiles have one direction, and
then just include TRC's for the other direction.
For input profiles, the ICC spec does not requre the presence of B2A
tables, since it is not assumed that a scanner profile is ever used for
PCS -> device transformations. But LUT-based display and output profiles
should contain both, A2B and B2A tables. If they don't, then they
actually do not comply with the ICC spec. Of course, if a display or
output profile is only
Is this a generally unsolved problem, or do proprietary solutions exist?
I fully agree with Marti, that this is not an easy task. But basically,
any profiler must somehow solve this kind of problem. If you want to
look at an example, see http://www.argyllcms.com/
Regards,
Gerhard
-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now.
http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click
_______________________________________________
Lcms-user mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/lcms-user
