Am 13.08.2010 15:51, schrieb Vladimir Gajic: > I applied it once, in ps. A potential pitfall is that PostScript applies transfer functions for a CMY ProcessColorModel not directly to CMY space, but to 1-CMY space, i.e. C' = 1 - cyan_transfer_function(1 - C). So the curves you have plotted need to be adapted accordingly in order to convert them to PostScript transfer functions. Regards, Gerhard