Am 27.10.2010 16:21, schrieb Anders Torger: > However, a source of confusion may be that I have misunderstood where the > data is. I thought that for an .icc profile from dispcal vgct = calibration > curves and rTRC/gTRC/bTRC = profile (*after* vcgt applied)... > Exactly. A profile with VCGT is supposed to characterize the overall behavior of graphics card & display _after_ the VCGT has been loaded into the graphics card. Of course this implies that the measurements for creating the profile must be taken as well _with VCGT loaded_ into the graphics card (which should be granted in case of "dispread ... -k <file>.cal ..."). Regards, Gerhard