vhs concert - anyway to fix?

[TheCage]

Hi

this is vhs capture with virtualdub+huffyuv.
Can you give me avisynth script to clean it as possible?

Thanks

[Selur]

Are you sure this is captured correctly?
Doesn't seem to be interlaced, but field shifted.
(for denoising I would try something like DeSpot+ DPIR)

[TheCage]

no, im not sure is captured correctly but i dont have the tape anymore so its what i have.

[Selur]

Like I wrote then try DeSpot and DPIR.

[TheCage]

Like I wrote then try DeSpot and DPIR.

what are these? avisynth scripts or tools?

[Selur]

DeSpot: http://avisynth.nl/index.php/DeSpot
DPIR (denoise) is provided by avs-mlrt

Cu Selur

[Alwyn]

Here's my attempt. I used default QTGMC set to "Faster" and Neat Video (a paid plugin for VDub) to clean it up.

I'm thick-skinned, come on you lot, bring it on!

@TheCage, IMO HUFF files are normally AVIs, not MKVs. AVI is the capture format, and if you do a Direct Stream Copy with VDub for your snippet, AVI is the norm.

[TheCage]

i just used avidemux to cut that part and forgot to select avi..... thats the reason

[Sharc]

Here's my attempt. I used default QTGMC set to "Faster" and Neat Video (a paid plugin for VDub) to clean it up.

I'm thick-skinned, come on you lot, bring it on!

Why doublerate deinterlace it? It is field shifted progressive video. Motion is 25fps only......

[Alwyn]

It is field shifted progressive video.

OK, what's your code to get rid of the jaggies?

[davexnet]

It is field shifted progressive video.

OK, what's your code to get rid of the jaggies?

Doesn't tfm() (field match) work on this?

[Sharc]

It is field shifted progressive video.

OK, what's your code to get rid of the jaggies?

I would have thought TFM(), for field matching. Here a 25fps quick shot using TFM() - I don't have NeatVideo ....

BSSource("raw-vdub-noaudio-huffyuv.mkv")
TFM()
Crop(16, 86, -24, -70)
QTGMC(InputType=3)
Spotless(RadT=3)
temporaldegrain2(degrainTR=3)

[Alwyn]

Doesn't tfm() (field match) work on this?

TFM is still giving me slight jaggies on the edges of the drums. QTGMC (divisor 1 or 2) gives smooth edges.

That's good, Sharc.

[TheCage]

cant load avisynth.nl.... any other links for TFM and DeSpot?

[Sharc]

http://avisynth.nl/index.php/External_filters
http://avisynth.nl/index.php/TIVTC
http://avisynth.nl/index.php/DeSpot
https://forum.doom9.org/showthread.php?t=181777

[TheCage]

Yes, i can not load the page. i did access via vpn and still cannot download the zip files... gives me error

[Sharc]

Can't help you with your VPN.

[Alwyn]

Try these; both are for 64bit AVISynth Plus:

TIVTC (for TFM):
https://drive.google.com/file/d/1LlDeIjBe34xabHfMc05ZRBrL6S3rD0X7/view?usp=drive_link

and Spotless:
https://drive.google.com/file/d/14VNVfU3AeJQXdAGgv6-dvEkP0iE8giOs/view?usp=drive_link

Drop both into your plugins64+ folder.

[TheCage]

thanks

i get error

MediablurTemp: only planar formats allowed
spotless.avsi, line121

[Selur]

Then you should make sure you feed SpotLess a 'planar format'.
So your input can't be RGB24, RGB32 or YUY2.
Planar: YV12, YV16, YV24, Y8, YUV420P/422P/444P, PlanarRGB/PlanarRGBA
Not planar: RGB24, RGB32, YUY2, RGB48 (packed)
ConvertToYV16(), ConvertToYUV422P8 or similar depending on your source should work.
see: https://avisynthplus.readthedocs.io/en/latest/avisynthdoc/corefilters/convert.html

Cu Selur

[TheCage]

got it!

any other suggestions for filters that i should add?

[Selur]

maybe
CAS(0.6)
QTGMC(InputType=2)
Spotless(RadT=2)
There are tons of stuff one could do, I for example using Vapoursynth would probably apply BasicVSR++ on the chroma.
It all depends on your liking, noise vs detail loss,....

[TheCage]

its thin line between those right? cleaning the image from vhs artifacts and losing details.
Also there is no sharp in the script! Should i add some?

[Selur]

That's up to you, also CAS = constant adaptive sharpening is a sharpening filter.

[TheCage]

Should i start using Vapoursynth instead avisynth?

[Selur]

Doesn't really matter, use whatever you can better work with.