[FFmpeg-user] Seeking smart decomb filter

Mark Filipak (ffmpeg) markfilipak at bog.us
Wed Jan 20 23:41:47 EET 2021

On 01/20/2021 06:17 AM, Paul B Mahol wrote:
> Motion compensation does not work that way.

Thank you, Paul. Yes, I knew that. I'm not seeking motion compensation. Kindly reread my filter 
features and suggest what comes closest. What I seek simply works on pixels. I'm relying on your 
experience (and perhaps the experiences of others here).


> On Wed, Jan 20, 2021 at 2:45 AM Mark Filipak (ffmpeg) <markfilipak at bog.us>
> wrote:
>> Hello All,
>> I seek a decomb filter that operates on H/2 number of line pairs: lines i
>> & i+1 (where i=0..H/2-1),
>> by aligning edges in the two lines at x = delta-x(edge)/2 (i.e. the
>> median). The ideal filter would
>> differentiate overall motion due to panning versus local motion due to
>> local object motion.
>> Pan-combing on the left & right edges is acceptable but it would be a
>> great bonus if the filter
>> performed blend on those edges with the blending radius equal to one-half
>> the pan-comb.
>> Vertical, line-pair-to-line-pair processing is not needed or desired.
>> Frame-to-frame processing is not needed or desired.
>> I have been trying a great number of filters based on their names and what
>> is in the documentation.
>> The best I've found so far is pp=linblenddeint but it obviously doesn't
>> align edges via the edge
>> median and it obviously isn't aware of pan-combing versus
>> object-motion-combing.
>> Any suggestions are very welcome. If I find this filter I will post a link
>> to a 60FPS telecined
>> video that will amaze everyone -- better than anything that Cuda can do.
>> -Mark.

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