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  1. I'm trying to fix the interlacing in this commercial and I'm certain it's been scaled.



    I tried downscaling it to 480p before deinterlacing it and it seems to have helped, but I still have some artifacts.



    Should I try a different resolution or is there a better solution to this?
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  2. Member
    Join Date
    May 2005
    Location
    Australia-PAL Land
    Search Comp PM
    If you're into AVISynth, have a go with PoisonDeathRay's script here:

    https://forum.videohelp.com/threads/416119-Non-Removeable-Jaggies#post2752815

    I tried it on your video and it cleared up the jaggies (every 4 fields in 10, by the looks), which seem to be burned in (open in Vdub, Deinterlace Yadif Double Rate BFF and step through).

    I set the Spline64resize at the end back to 1280x720. It looks a bit softer (and the dog's head-swivel is a bit messy), better than it was though.

    The PDR script I used (video only):

    Code:
    LWLibavVideoSource("D:\VideoHelp\AstroseedP\Sonic꞉ 'Boom' [Vimeo].mp4")
    ConvertToYV16()
    Spline16Resize(400,300)
    santiagmod(3,3)
    QTGMC(inputtype=2)
    Spline64Resize(1280,720)
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  3. I don't think a different resolution will help. But this reduces the residual artifacts a bit more:

    Code:
    LWLibavVideoSource("Sonic.mp4", cache=false, prefer_hw=2) 
    AssumeTFF()
    DeLanczosResizeMT(last, last.width, 480) # from the ResampleMT package
    QTGMC(preset="fast")
    SelectEven()
    TDecimate(Cycle=5, CycleR=1)
    #SMDegrain(tr=2, thsad=2500, PreFilter=4)
    If you enable that final SMDegrain it will remove almost all of the remaining comb-like artifacts but will also lose some details and distort some moving objects.

    With SMDegrain:
    Image
    [Attachment 82869 - Click to enlarge]
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  4. Member
    Join Date
    May 2005
    Location
    Australia-PAL Land
    Search Comp PM
    That's good, Jagabo, but it's stretched. Could we just do a spline64resize(1280,720) at the end?
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  5. Oops, I missed the last line when I copied and pasted. I used nnedi3_rpow2 but Spline64Resize is fine.
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