Re: [Lcms-user] Release candidate of lcms2-2.10 available

[<mar...@li...>]

Quoting Carles Llopis <car...@in...>:

> we found with the latest releases that we can't save DeviceLink profiles to
> memory buffers or files.
> We create DeviceLink profiles "on the fly". The input is normally RGB and
> the output can be anything from 1CLR to FCLR

This is by design. Has been there for many time. If you create a  
rather usual 3x3 lut and you dont't specify any matrix, lcms puts in  
the profile a identity for you. If the pipeline is not 3x3, then you  
have to add the matrix. This is because for multichannel it is not  
clear what a "identity" means. Note that the spec *requires* a matrix  
for Lut16, so you have to put something.

Then you have several options:

- Use a V4 ICC profile with a modern LutAtoB/LutBtoA
- Add a matrix to the pipeline.

Best regards
Marti