The Quest for Good Color - 3. How Close Can IT8 Come to SSF?"

[paulmiller]

@ggbutcher

So, in the ICC transform, there are two steps: camera → PCS, then PCS ->destination. If the camera profile converts to Lab, then the destination profile needs a matrix/LUT that converts from Lab. I don’t have any; I use Elle Stone’s ‘well-behaved’ profiles for most of my destinations, and those are all XYZ anchored.

When you stick 2 profiles together to make a colour transform, the CMM* will perform conversions between XYZ and Lab PCS encodings as necessary. So (unless you are writing your own colour management software) you don’t need to worry about it.

* Colour Management Module - e.g. LittleCMS