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  1. Member
    Join Date
    Nov 2006
    Location
    United States
    Search Comp PM
    Hello,

    I capture NTSC laserdiscs and ran across GlitchBob's post about dot crawl removal. Being how laserdisc is composite video, I have an external 3D comb filter in the chain. My player's built-in comb filter is decent, and maybe good enough to eliminate the external comb filter if I can figure out which AVISynth plugins64 to get rid of the rest of the rainbow/dot crawl that the player's filter doesn't scrub.

    If anyone has experience with using any of the Rainbow & Dot Crawl removal filters, could you please take a look at the clip and possibly advise me of a script? I can see the dot crawl better when I step frame-by frame vs. in real-time playback. Pay close attention to the pool ladder handles.
    Image Attached Files
    • File Type: avi 1.avi (70.18 MB, 48 views)
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  2. Member
    Join Date
    Mar 2008
    Location
    United States
    Search Comp PM
    You can try MosquitoNR in Avisynth
    Code:
    import("i:\plugins\MCTemporalDenoise.v1.4.20.avsi")
    lwlibavvideosource("C:\Users\davex\Desktop\1.avi")
    convertToyv12(interlaced=true)
    tfm().tdecimate()
    mosquitoNR()
    mctemporaldenoise(settings="very low",chroma=true)
    Image Attached Files
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  3. Try this:

    Code:
    CheckMate() # reduce dot craw (may create ghosting on some material)
    TFM()
    TDecimate()
    dehalo_alpha(rx=2.0, ry=1.0) # optional oversharpening halo reduction
    Santiag(strv=1, strh=1, nns=4) # clean up chroma chroma interlacing artifacts
    MergeChroma(aWarpSharp(depth=5), aWarpSharp2(depth=10).Sharpen(0.5)) # sharpen luma a little, chroma more
    There's still a little flickering rainbow artifacts.
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