On 04/14/2020 04:23 AM, Paul B Mahol wrote:
On 4/14/20, Mark Filipak <[email protected]> wrote:
How do I combine two combed half-pictures so that the resulting picture is
screened?
Combed input frame:
11111...
22222...
Desired output frame:
12121...
21212...
It occurs to me that I need to unweave the half-pictures, line-double both,
screen both via
pixel-sized screens that are offset by 1 pix, then reweave them.
Look at weave, doubleweave, separatefields and so on....
Thanks. I'll run them through my tester.
I've not found a line-doubling filter and I've not found a screen method
that actually works.
Actually, after I posted, I thought of bob. I think bob line doubles.
Also, a method to zoom pixels in the output so I can actually see them
individually without a
magnifying glass would be very helpful.
datascope or pixscope filter.
Thanks again.
I've tried every filter I could find that has anything to do with blending,
screening, blurring,
etc., but I may have missed something.
You are just a big troll.
Yup! That's me! Mark, the ffmpeg troll. The troll of your dreams. Just keep your hands to yourself,
Paul.
A really ambitious method would be: Replace the combed frame with a
synthesized frame that's a
motion-vector meld of the preceding and subsequent progressive frames, but
that seems pretty wild
and probably beyond ffmpeg's capabilities, but I simply don't know.
Thanks,
Mark.
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