Hallöchen! Gert van der Plas - Schrama writes:
> Could someone tell me the exact difference between the base curve > and the tone curve. Technically, the base curve happens in RGB space, and the tone curve in Lab space. Among other things, this means that flat areas in the base curve tend to desaturate, which is not the case for the tone curve. > [...] > The default base curve for the nex is really ugly for most cases. The "Sony-like" base curve of Darktable is substantially darker than the in-camera NEX base curve. I you know a little bit of C, you can add a NEX curve to http://darktable.org/redmine/projects/darktable/repository/revisions/master/entry/src/iop/basecurve.c It is: {sony_nex, "SONY", "NEX", 0, 51200, {{{{0.000000, 0.000000},{0.000100, 0.000426},{0.001000, 0.000735},{0.007000, 0.022061},{0.010000, 0.040219},{0.030000, 0.124101},{0.100000, 0.379779},{0.130000, 0.472991},{0.160000, 0.541775},{0.200000, 0.605820},{0.250000, 0.671568},{0.300000, 0.731217},{0.400000, 0.808249},{0.500000, 0.864802},{0.600000, 0.896690},{0.700000, 0.925065},{0.800000, 0.951827},{0.900000, 0.976113},{0.950000, 0.990095},{1.000000, 1.000000}}}, {20}, {m}}, 1}, You must also add the line static const char sony_nex[] = N_("sony NEX like"); at the appropriate position in the same file. Tschö, Torsten. -- Torsten Bronger Jabber ID: [email protected] or http://bronger-jmp.appspot.com ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60134071&iu=/4140/ostg.clktrk _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users
