Hello,
if I understood the documentation correctly, the normalize filter maps
the darkest input pixel to blackpt and the brightest input pixel to whitept:
darkest pixel --> blackpt
brightest pixel --> whitept
However I need a slightly different mapping:
A black input pixel shall remain black, and the brightest input pixel
shall become white.
black --> blackpt
brightest pixel --> whitept
With other words: Just multiply all pixels by a suitable constant. Don't
add or subtract anything.
Is this possible?
Known workaround: Make sure that the input frame contains a black pixel,
by inserting one in a corner.
Michael
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