Hello! I see that at least one person likes my idea. Cool! :) > A "dummy" demo device just generating some more or less meaningful > typical numbers is useful to test the application itself. I meant only fully interactive process. I do however think that as an additional option a sane calibration results could also be (randomly?) generated - this would be great for demonstrating the software. I would treat such an option as a "low-priority to implement" though. > I'm not sure if you suggest to enter each color one after the other? Yes. I meant to visualise the following algorithm: 1) generate the first patch 2) display a color patch for measuring 3) ask the user to enter the coordinates of the color of the patch - either by giving all coordinates at once or one at a time (the choice is completely irrelevant) 4) if there is no "next patch" - end measurement session and finish program otherwise generate the next patch 5) goto 2) > If no interative calibration process is used then a list of > measurement data will be sufficient. I do not know how such "measurement data" could be generated. Please bear in mind that I am very new to Argyll (I have not yet managed to calibrate anything with it due to lack of supported sensor [Spyder3 is not yet supported]).