To answer a question on B&W points I have taken Play Image 1
Graphic 1) I have randomly dropped a black point on the rotor as that may be deemed to " look " black.
Graphic 2) The Double Threshold box on the histogram was checked, image magnified and a black point set as described in post 14.
Graphic 3) A side by side to show the effect on the image.
Graphic 4) Image view when setting black point using DoubleThreshold.
Black and White points will affect the whole image and what may at casual glance appear black, may well not be Red 0 , Green 0 , Blue 0 , Black but a very dark grey.
White point is set in a similar fashion.
Don
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