Nikolay Pokhilchenko wrote:
Mention must be note, that in some cases (depends of spectral sensitivity of the sensor and of the target reflection spectrum) the lightest patch can be not white, but green! And colprof can make a mistake in white point of the device because true white patch has lower Y tan green patch.
I'm open to suggestions on what criteria would be more robust. Can you send me an example .ti3 file of a case as you describe above ? Graeme Gill