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  1. I have an anime series which was ripped from a DVD source (by someone else). It has really severe aliasing/distortion in the lines whenever there is any movement, even if very slight... I have uploaded an image to show what I mean and also a short ~30s clip which will be a better demonstration.

    I'm willing to re-encode and even sacrifice quality in other areas if I can fix the lines breaking up like this, are there any filters I can use to address it? Hybrid is what I use when encoding, which has vapoursynth support.
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  2. QTGMC(InputType=2) in AviSynth works pretty well. Following up with an antialiaser like Santiag() cleans it up a little more. I'd look into fixing the frame rate too.
    Code:
    LWLibavVideoSource("clip 1.mkv", cache=false, prefer_hw=2) 
    QTGMC(InputType=2)
    Santiag()
    TDecimate(Cycle=5, CycleR=1)
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    Last edited by jagabo; 8th Dec 2024 at 09:33.
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  3. As a small addition, in Hybrid, when using Vapoursyntjh, to do what jagabo suggest, enable:
    • "Filtering->Vapoursynth->Denoise->QTGMC" set InputType to 2
    • "Filtering->Vapoursynth->Line->AntiAliasing->Santiag"
    • "Filtering->Vapoursynth->Reduction->TDecimate"
    for Hardware decoding, like suggested, "Filtering->Vapoursynth->Misc->Source->Libav hardware decoding" need to be configured.
    users currently on my ignore list: deadrats, Stears555, marcorocchini
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  4. Thank you both, QTMGC input type 2 produces the exact results I was looking for. I did try QTMGC before but I left it on default setting which didn't seem to do anything, so I thought the issue was something else.

    I am pretty new to encoding beyond using defaults and presets so I don't know what certain settings actually do yet.
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  5. Note: InputType=2 is for fixing video that was poorly deinterlaced in the previously. You source looks as if it was deinterlaced with Yadif before.
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