VideoHelp Forum - Restoration

VideoHelp Forum - Restoration https://forum.videohelp.com/ Video and audio restoration. The process of improving the quality of your audio and video whether by means of hardware or software. en Wed, 12 Aug 2026 08:40:11 GMT vBulletin 60 https://forum.videohelp.com/images/misc/rss.png VideoHelp Forum - Restoration https://forum.videohelp.com/ Can anyone repair a rolling VHS tracking band in an MP4-only source? https://forum.videohelp.com/threads/420884-Can-anyone-repair-a-rolling-VHS-tracking-band-in-an-MP4-only-source?goto=newpost Tue, 21 Jul 2026 21:18:20 GMT Hi everyone. I'm learning but I think this is over my head and beyond the tools I have. Anyone willing to assist? :)

Attached Files

Beowulf Clip_ComeGetMe.mp4 (2.56 MB)

]]> Restoration edwebster3 https://forum.videohelp.com/threads/420884-Can-anyone-repair-a-rolling-VHS-tracking-band-in-an-MP4-only-source Need help removing heavy halo from this source https://forum.videohelp.com/threads/420876-Need-help-removing-heavy-halo-from-this-source?goto=newpost Mon, 20 Jul 2026 03:26:02 GMT Hello! I've been trying to restore this source, but the only problem is removing the heavy halo from this source

[Attachment 93115 - Click to enlarge]
The best I got is this script which removes some of it, the heavy parts can still be seen:

Code:

LWLibavVideoSource("blah.ts")

AnimeIVTC(mode=1, omode=1)

vinverse2().vinverse2().vinverse2()

QTGMC(preset="Placebo", TR0=2, TR1=2, TR2=3, Rep0=1, Rep1=0, Rep2=5, EdiMode="EEDI3", InputType=3, NoiseRestore=1.0, NoiseProcess=1, Sigma=1.4, StabilizeNoise=True, ProgSADMask=25.0)

Crop(180, 0, -180, -0)

Debicubic(c=0.33, 720, 540)

HQDeringmod(mrad=6, nrmode=3, thr=255, darkthr=0)

DeHalo_alpha_mt(rx=1.4, ry=1.4, darkstr=0.0, brightstr=1.8, lowsens=20, highsens=75, ss=1.4)

nnedi3_rpow2(rfactor=2, nsize=5, nns=4, qual=2, cshift="BicubicResize")

[Attachment 93116 - Click to enlarge]
Can anyone help me out here? Thank you!
(I know I've been posting here a lot lately, this will be my post for a while)
https://drive.google.com/file/d/1OveTNcJksBGXbDYKexv088Q_e2XbpkB7/view?usp=sharing ]]> Restoration themon-master https://forum.videohelp.com/threads/420876-Need-help-removing-heavy-halo-from-this-source Any good deinterlacer scripts for this source? https://forum.videohelp.com/threads/420873-Any-good-deinterlacer-scripts-for-this-source?goto=newpost Sat, 18 Jul 2026 19:57:35 GMT Hello! I'm trying to deinterlace this source from a PAL DVD but this is difficult achieving that because this source is only interlaced from certain scenes
and progressive on the other scenes (It's not any pull down that has to be TDecimate)
Most of the deinterlacers failed me by giving insane jagged line artifacts, the best I got is NNEDI3 which works really great on the interlaced scenes
but gives me jagged lines artifacts (Not as bad as the others) on progressive scenes.
Can anyone help me out here? Thanks!
https://drive.google.com/file/d/1XWT3FBlfH4_wN82uvS8xZZDqWEo4cbPn/view?usp=sharing ]]> Restoration themon-master https://forum.videohelp.com/threads/420873-Any-good-deinterlacer-scripts-for-this-source vapoursynth filter CNR3, updated from CNR2 https://forum.videohelp.com/threads/420870-vapoursynth-filter-CNR3-updated-from-CNR2?goto=newpost Sat, 18 Jul 2026 01:40:30 GMT Hello. The venerable old CNR2 has been redeveloped by AI's into CNR3.

https://github.com/hydra3333/vapoursynth-cnr3

Targetted for use on noisy VHS/VHS-C analogue capture files, CNR3 is a temporal denoiser designed to denoise only the chroma (colour), and is derived from the Cnr2 family of filters. According to the original author, this style of filter is suited for stationary rainbows and noisy analog captures.

CNR2 relied on VapourSynth APIv3, which is being phased out, and additionally depended on a serial (in-number-order) output frame request mode which is strongly recommended against under VapourSynth R76+.

Based on CNR2, CNR3 fully implements its recursive temporal model — each output frame depends on the previous filtered output frame, not the previous source frame — which is inherently serial. CNR3 therefore uses the supported vapoursynth APIv4 and the supported fmParallelRequests mode, and implements an internal output-frame cache (with checkpointing and bounded recovery) to deal correctly with out-of-order output frame requests. Output from CNR3 is not bit exact with CNR2, since CNR3 uses slightly more accurate arithmetic.

Latest test result from vspipe to .y4m:

Code:

Output 957 frames in 2.67 seconds (358.89 fps)

IMPORTANT NOTE:

A new better CNR4, inspired by CNR2, has been developed
https://github.com/adworacz/zsmooth#cnr4
which uses a different algorithm to CNR2, however is said to yield a much better result.

Quote:

While Cnr4 is inspired by Cnr2, it provides several key improvements over the original:
- Multithreading friendly (the original Cnr2 was limited to serial processing).
- Roughly 2x faster single-threaded and 10x faster multithreaded.
- Better denoising quality due to the use of past and future frames. Cnr2 only used past frames.
- Significantly reduced ghosting.
- Adjustable temporal radius.
- Configurable temporal handling and weighting modes.

Hence CNR3 is a redeveloped CNR2, more for posterity than anything else.

Cheers. ]]> Restoration hydra3333 https://forum.videohelp.com/threads/420870-vapoursynth-filter-CNR3-updated-from-CNR2 Any good antialiasing script for this source? https://forum.videohelp.com/threads/420851-Any-good-antialiasing-script-for-this-source?goto=newpost Mon, 13 Jul 2026 17:05:21 GMT Hello!, I'm currently trying to restore these old episodes from an anime series and the only issue I can't fix is the aliasing.
(Take a look at the background)

[Attachment 93031 - Click to enlarge]
I can't seem to find a good antialiasing script that fully fixes that issue.
Can anyone help me out here? Thank you!
Note: The native resolution of the source is 960x540 and to resize is by using descale

Code:

debicubic(c=1, 960, 540)

(Another Note: I'm an AviSynth user)
SAMPLE FILE:https://drive.google.com/file/d/1kQSrx1-LQ7s_tavuYq7QOrzJ_3CNHBlc/view?usp=sharing ]]> Restoration themon-master https://forum.videohelp.com/threads/420851-Any-good-antialiasing-script-for-this-source