I've been thinking about what I see as a weakness in the calibration system of not having a reference to compare your display to. This would help avoid the charts look great but the actual display looks too (fill in the blank).
For instance, calibrators will say that they view actual content to confirm their calibrations but what are they comparing it to? From what I gather, it's what they think it's suppose to look like. Relying on memory is a pretty bad idea too not to mention that you can look at an off color image long enough and after a while, it starts to look O.K. You also have issues with color vision.
In any event, what I'm looking for is a system where we would have reference photographs that are viewed under D65 lighting (or something very close to it) and a Bluray properly mastered showing the exact same images. In this tool, there would also be variation of the correct image surround the correct image to give you a clue as to how your image is off. We have something like this in print photography to help assure color accuracy. We'd want to extend this to include the variations in gamma, If you're targeting 2.2 and you've are actually getting 1.8, wouldn't you like to know it?
Does anyone know of an existing system/tool to do this?