Kai-Uwe Behrmann wrote: > But given the outlined limitation of measurement values inside a profile on > top of a calibrated > device, > would it be possible to go the other way around and create a profile with > VCGT from a complete > measurement set without any involved LUT/VCGT > calibration? Hi, I guess so, but I'm not sure what the point is. There are two main reasons for doing calibration. One is to make absolute changes to the device behaviour that profiling doesn't easily allow. The second is to improve the behaviour of the device in more detail (because it's done as 3 x 1 dimension measurements and tables rather than 1 x N dimensions). Creating a calibration out of a samples spread throughout N-dimensions is likely to have poor precision compared to directly making calibration measurements for each device channel. In the case of a display calibration the advantage of interactive adjustment (finding in practice the device values that are neutral) is also lost. Graeme Gill.