Electronics > Projects, Designs, and Technical Stuff

analog video effect

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Alex Eisenhut:
What was it called when the luminance was discretized? I think it made things look like paint by numbers larger areas of equal luminance.
Seems to me there was a project in a 1980s Radio Electronics for an analog video effects box.

Someone:
The keyword is probably "coring" it has been applied in both analog and digital domains.

T3sl4co1l:
Dunno for video, but "posterize" is the relevant effect in Paint Shop.

Tim

Alex Eisenhut:

--- Quote from: T3sl4co1l on November 20, 2019, 03:46:12 am ---Dunno for video, but "posterize" is the relevant effect in Paint Shop.

Tim

--- End quote ---

Awesome, that's the word I was trying to remember! As in "looks like a poster" I guess.
Now to find out how that was achieved in the analog domain, a flash converter with variable bit width fed back to a DA converter?

mikerj:
You could do this pretty easily with a bunch of comparators.

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