View Full Version : VHS tape with glitches needs Clean up
banaguitar
12th September 2022, 19:08
Hello, first of all, I don't have the tape anymore. So there i no way to capture it again. But maybe somebody can help me with avisynth to clean up this bad clip which has a lot of glitches and horizontal lines.
https://files.fm/u/f7sjhp8dc
Thank you!!
StainlessS
12th September 2022, 20:47
Not there.
https://i.postimg.cc/WF41wKh4/Untitled-00.jpg (https://postimg.cc/WF41wKh4)
Maybe have a look at Spotless()
https://forum.doom9.org/showthread.php?t=181777&highlight=Spotless
banaguitar
13th September 2022, 10:13
Not there.
https://i.postimg.cc/WF41wKh4/Untitled-00.jpg (https://postimg.cc/WF41wKh4)
Maybe have a look at Spotless()
https://forum.doom9.org/showthread.php?t=181777&highlight=Spotless
Uploaded again. I tried Spotless with Default, but without improvement.
ChaosKing
13th September 2022, 10:31
I don't have avisynth installed right now to test them but http://avisynth.nl/index.php/DeScratch and http://avisynth.nl/index.php/DeVCR sound promising.
Also just search for vhs on the plugins page http://avisynth.nl/index.php/External_filters
StainlessS
13th September 2022, 15:59
Also, Spotless, try Radt greater than default 1 (suggest 2 or 3)
And ThSAD, ThSAD2 range maybe 2000 to 4000,(can set both same) and BlkSz both 8 and 16.
Mounir
14th September 2022, 12:10
this seem to work rather well
LWLibavVideoSource("test.mp4")
ConvertToYV16(interlaced=false)
U = UToY().ttempsmooth(maxr=6,lthresh=150, strength=6).KNLMeansCL(d=3,a=8,s=2,h=6)
V=VToY().ttempsmooth(maxr=6,lthresh=150, strength=6).KNLMeansCL(d=3,a=8,s=2,h=6)
YToUV(U,V,last)
SpotLess(RadT=1,ThSAD=1000,ThSAD2=4000,pel=2,chroma=true,BlkSz=16,Olap=4,tm=false,glob=false,bBlur=0.0)
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