Am 25.05.05, 10:04 +0200 schrieb Marti:
>
> The problem is, lcms cannot guess which direction to use.
>
> Let's imagine you have a input profile from RGB to Lab, and then you connect
> the colorspace profile after that, finally you have an output profile
> implementing Lab ->RGB
> Which direction to use?
Thanks for this explanation.
> Is for that reason Lab->Lab profiles are usually marked as
> abstract profiles. Those have only one direction. Just to
> prevent such kind of things.
The profile should be usable as working space. Abstracts are no option.
> Also, If I recall correctly, Lindbloom's profile deals with
> a tweaked Lab, so I wonder if the profile should be tagged as using Lab at
> all. That's not the Lab space all we are used.
Well, that [L]*ab is somewhat rotated. Calling it internally RGB should be
ok.
thanks
Kai-Uwe Behrmann
+ development for color management
+ imaging / panoramas
+ email: [EMAIL PROTECTED]
+ http://www.behrmann.name
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