> I have a camera for which I still can't figure out what it sends. I even > have the decoder, but the colors are not quite right... and I fear that > without the OEM's help (the exact transformation matrix) it is not even > theoretically possible to fix it. What happens if you point two cameras looking at the same colour scale line up the images with say a set of crosses and generate the transformation approximation from that. Its a bit harder than finding the base clock of a sound card with a tuning fork I admit