Burckhart Seifert wrote: >> Is this possibly an ECI chart? >> > Yes, it is the ECI2002. I have also made it available. > http://www.colortaxi.de/misc/argyll/ > The linearization is made within the RIP. I detected the maximum > density for the cyan channel at 97%. I'm not sure, possibly I was overestimating the impact of the saturation of C*=f(cyan) at 70% cyan and the sharp bend in the hue=f(C*) plot (which starts even at approx. 60% cyan). I have attached a few plots, which are made from the (sparsely sampled) 1D ramps in the ti3 file by simply connecting the points with line segments (using the 1978_2 observer, to be consistent with "profile"). Graeme, when you look at the plots, what do you think? Should the channel be cut-off earlier, somewhere below 100%, or is it still reasonable as is? At least dE from white is still monotonically increasing up to 100% cyan (though pretty flat from 70...100%). Regards, Gerhard