Hello Hugo, Am 01.02.2013 16:52, schrieb Hugo Meinedo: > Dear Florian, > > Thank you very much for the explanation. > Yes I had the "black point compensation" box ticked in dispcalGUI. > To understand what was going on I had to look at the source code. > When the user selects "black point compensation" dispcalGUI applies it to the > values and creates a temporary .ti3 which is then used by colprof to generate > the profile. > Then, after the run, this temporary .ti3 is deleted and only the original one > is stored. > It would be nice if the temporary .ti3, with the black point compensation > applied, could also be stored along with the original one. I can do that. The file could be stored with "bpc.ti3" extension to distinguish it from the unaltered measurement data. -- Florian Höch