2011/6/22 Graeme Gill <graeme@xxxxxxxxxxxxx> > > With the scheme above, all you need is for someone with a spectrometer > to measure the display, and then everyone else with any colorimeter > that uses this scheme can use the measurement to create a n accurate > correction matrix for their particular colorimeter. That reduces the > scope of the problem considerably. > > I have a concern about this method. So I have the spectral characteristics on my instrument. This is unique and could be assumed as nearly constant in time. I can measure the spectral characteristics of the given display and compare it with the curves from the firmware. This sounds good. But what if I start to tune the gamut emulation with the internal processor of the display hardware? The primaries will virtually change every time I change the hardware settings. Could it cause any problems? For example, I start to calibrate the gamut controls on a display with a colorimeter using the correction matrix. Does the correction matrix becomes invalid as soon as I adjusted any gamut controls? (So I can't achieve the target primaries at all...)