Hi

> The encoding of src is double with an range of 0.0 - 1.0 for each of the
> three samples. My most interesst is using floats with at least 16bit.

Still is unclear to me how you get this 0..1.0 encoding. Are you reading it
from tiff ? Lab iself goes L =0..100 and ab between -128..+128.
alas, TIFF encoding is pretty tricky. Fot that reason I suggested to use
the lcmstifflab8 profile.

> I dont understand how it makes sense to switch from doubles to 8bit
> integers for hLab? You really mean downsampling?

Sorry, a typo. It should be TYPE_Lab_DBL

> I think I did it with the my above code. Still, the result is not what I
> expected. (I used f32 as simple float and with casting to double -> same
> result.)
> Maybe as You don't use floats anyway, I rewrite it and use 16bit integers.
> That worked right.

If you can do it, it will be faster. No doubt on this.

Regards,
Mart�.




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