I am checking/playing with ChartThrob but can not seem to get QTR to accept the acv reference - same old fault - "Curve Specified but no valid data on line 41...".
I can not figure out how to crack this nut. I have tried everything - ChartThrob requires RGB mode to complete. I save the curve & falling Roy's advice, close the file, creat a grayscale file, load the curve, & save it as a Gray Curve under a different name.
Nothing seems to work... At least it is a consistent result.
TIA,
Phil