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.
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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