Thanks Morgan,
hence RTv2_Large.icc has Prophoto characteristics;
OK,
If I analize the color chain for a generic RGB I have the same colorimetric coordinates in all three intents @gwgill :
Relative
xicclu -ir -ff RTv2_Large.icc q
0.821355 0.821354 0.821348
0.821355 0.821354 0.821348 [RGB] → MatrixFwd → 0.617724 0.640657 0.528482 [XYZ]
Perceptual
xicclu -ip -ff RTv2_Large.icc q
0.821355 0.821354 0.821348
0.821355 0.821354 0.821348 [RGB] → MatrixFwd → 0.617724 0.640657 0.528482 [XYZ]
Saturation
xicclu -is -ff RTv2_Large.icc q
0.821355 0.821354 0.821348
0.821355 0.821354 0.821348 [RGB] → MatrixFwd → 0.617724 0.640657 0.528482 [XYZ]
and If the application in this case Rawtherapee (lcms ??) uses the intent in the source profile too,
when the colorimetric coordinates are translated into the destination profile I have:
Relative
xicclu -ir -fb hp_100cd5000k.icc
0.617724 0.640657 0.528482
0.617724 0.640657 0.528482 [XYZ] → Lut → 0.822343 0.822474 0.819190 [RGB]
Perceptual
xicclu -ip -fb hp_100cd5000k.icc
0.617724 0.640657 0.528482
0.617724 0.640657 0.528482 [XYZ] → Lut → 0.822343 0.822474 0.819190 [RGB]
Saturation
xicclu -is -fb hp_100cd5000k.icc
0.617724 0.640657 0.528482
0.617724 0.640657 0.528482 [XYZ] → Lut → 0.822343 0.822474 0.819190 [RGB]
If I understood how icc profiles work when I switch relative, perceptual and saturation intents the image has not to change, has it?
And more I think if I set a matrix display profile and the perceptual intent is not present the gui would have to disable such intent.
