Hi, I downloaded a video file which seemingly has some frame blending/ghosting. It's very subtle. My general question is, what's the simplest way to remove this? Any help would be appreciated. Thank you for your time.
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You'll have to provide a video sample (one including a medium speed panning shot is best) because exactly what you might do depends on the particular video. But basically, you subtract the ghost by using another frame as reference.
Code:Blend = A + B
Code:A = Blend - B
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Thanks for replying. I made a small encode of a clip that described what you wanted out of the sample. How might I go about doing that? Avisynth? https://drive.google.com/file/d/1Cf5OJMM5FoJci6X5OTZN1d3xJh3AXReC/view?usp=sharing
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Here's theory. A source frame from that video:
[Attachment 74119 - Click to enlarge]
Subtracting some of the previous frame eliminates a lot of the ghosting (but creates negative ghosting in some other frames):
[Attachment 74120 - Click to enlarge]
Following that with a strong temporal filter removes more of the ghosting (and some small details, and may cause some ghosting of its own):
[Attachment 74121 - Click to enlarge]
Code:LSmashVideoSource("CLIP.mp4") ColorYUV(off_y=-11) Overlay(last, Loop(2,0,0).Blur(1.0), mode="subtract", opacity=0.07).ColorYUV(gain_y=10, cont_u=11, cont_v=10) ColorYUV(off_y=11) SMDegrain(thsad=500, thsadc=500, tr=2, PreFilter=1)
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