Martin Orpen wrote:
The Fogra 52 data produces neutrals composed of CMK and zero Y in both i1Profiler and Argyll.
I'm not seeing that (at least with my current code): colprof -v -qm -kx fogra52 icclu -fb -ia fogra52.icc 100.0 0.0 0.0 [Lab] -> Lut -> 0.007017 0.000764 0.081098 0.000000 [CMYK](clip) 50.0 0.0 0.0 [Lab] -> Lut -> 0.082952 0.039821 0.172167 0.656606 [CMYK] 40.0 0.0 0.0 [Lab] -> Lut -> 0.195334 0.103255 0.268755 0.778196 [CMYK] 30.0 0.0 0.0 [Lab] -> Lut -> 0.704504 0.399554 0.299435 0.917631 [CMYK] 20.0 0.0 0.0 [Lab] -> Lut -> 0.998257 0.923926 0.930881 0.996716 [CMYK] 10.0 0.0 0.0 [Lab] -> Lut -> 0.994710 0.972349 0.899008 0.998990 [CMYK] 0.0 0.0 0.0 [Lab] -> Lut -> 0.983620 1.000000 0.915429 1.000000 [CMYK] colprof -v -qm -kz fogra52 icclu -fb -ia fogra52.icc 100.0 0.0 0.0 [Lab] -> Lut -> 0.007017 0.000764 0.081098 0.000000 [CMYK](clip) 50.0 0.0 0.0 [Lab] -> Lut -> 0.606688 0.510562 0.654812 0.000731 [CMYK] 40.0 0.0 0.0 [Lab] -> Lut -> 0.695956 0.650859 0.853761 0.179810 [CMYK] 30.0 0.0 0.0 [Lab] -> Lut -> 0.791740 0.543053 0.444419 0.844733 [CMYK] 20.0 0.0 0.0 [Lab] -> Lut -> 0.998257 0.923926 0.930881 0.996716 [CMYK] 10.0 0.0 0.0 [Lab] -> Lut -> 0.994710 0.972349 0.899008 0.998990 [CMYK] 0.0 0.0 0.0 [Lab] -> Lut -> 0.983620 1.000000 0.915429 1.000000 [CMYK] what exactly are you looking for ? Cheers, Graeme Gill.