VHS Tape restoration help

[Selur]

Nope, afk. atm., but maybe someone else can write a script for that.
Also for denoising I would try QTGMCs EZDenoise,...

[Akuma786]

Okay so I recaptured again but this time with TBC OFF on the JVC HR S7600 and to my surprise the vertical jumps have stopped. But picture quality is worse off.

[lollo]

Yes, as told in post #27 the time base correction of the lines of the frames is sometimes causing the vertical shift of the fields. You can try to disable the TBC inside the VCR and use the correction of the Panasonic (remember to never have both active).

Disabling the VCR's TBC is not really an option, because as you have experimentes the image quality is worse. In any case, with the TBC off, in the frames featuring the shift of the fields (when TBC is on) you should see some defects in your capture (that the TBC is compensating, sometimes introducing the shift).

[Akuma786]

Yes, as told in post #27 the time base correction of the lines of the frames is sometimes causing the vertical shift of the fields. You can try to disable the TBC inside the VCR and use the correction of the Panasonic (remember to never have both active).

Disabling the VCR's TBC is not really an option, because as you have experimentes the image quality is worse. In any case, with the TBC off, in the frames featuring the shift of the fields (when TBC is on) you should see some defects in your capture (that the TBC is compensating, sometimes introducing the shift).

Okay I think I got it finally as best as possible. As suggested, I captured this time with the VCR TBC OFF and used the Panasonic for correction.

New capture:
https://www.swisstransfer.com/d/12217194-5004-4099-b73a-9ee07e1c50fd

Here is my updateed Script as no longer need QTGMC. Also added LSFMOD as you suggested in earlier post's, it now improves picture alot more on this capture.

AVISource("G:\future projects\buddhist fist\VHS PRINT FILES\The Buddhist Fist - VHS FULL DMR - NEW Capture.avi")
AssumeTFF()
AssumeFPS(24, sync_audio=true)
crop(8,116,-16,-120)
ConvertToYV12(interlaced=false)
SMDegrain(thsad=300, tr=3, PreFilter=4)

TemporalDegrain2(degrainTR=3)
LSFmod(defaults="slow")

ConvertToYUY2()
Spline36Resize(720, 306) 

Prefetch(24)

Please let me know if this is okay or anything else to improve it further. Thanks Lollo.

[lollo]

Would it make a difference to field shifts issue if I try recapture the VHS, but this time using a Panasonic DMR ES15 included in the process ?

Yes, I suppose. Just try and let us know!

[Akuma786]

Would it make a difference to field shifts issue if I try recapture the VHS, but this time using a Panasonic DMR ES15 included in the process ?

Yes, I suppose. Just try and let us know!

See post 34!

[lollo]

Would it make a difference to field shifts issue if I try recapture the VHS, but this time using a Panasonic DMR ES15 included in the process ?

Yes, I suppose. Just try and let us know!

See post 34!

Sorry, I missed you reply. I did not ckeck the new capture in details, but if you see no shifted fields then it's fine.
You have some defect at frame 46 and 47, for istance. The cannot be replaced by interpolation because they are at a scene change, you can eventually replace them with a prevous/next frame. Same for frames 120 and 121.

About restoration processing, it really dependes on your taste. Just avoid over-denoising (SMDegrain is not needed if you use TemporalDegrain2) and over-sharpening.

[Sharc]

Your new capture still has glitches (appearing in pairs on the bottom/top of the frames, typically at scene changes), like frames 8,9, 46,47, 120,121, 129,130, 149,150, 192,193, 216,217, 255,256 etc.etc.

Edit: lollo was faster ....

[Akuma786]

Your new capture still has glitches (appearing in pairs on the bottom/top of the frames, typically at scene changes), like frames 8,9, 46,47, 120,121, 129,130, 149,150, 192,193, 216,217, 255,256 etc.etc.

Edit: lollo was faster ....

yeah those are common in the type of projects I work on..most of these kung fu films were all transfered like this from 35mm with splice lines showing at scene change

[Akuma786]

Would it make a difference to field shifts issue if I try recapture the VHS, but this time using a Panasonic DMR ES15 included in the process ?

Yes, I suppose. Just try and let us know!

See post 34!

Sorry, I missed you reply. I did not ckeck the new capture in details, but if you see no shifted fields then it's fine.
You have some defect at frame 46 and 47, for istance. The cannot be replaced by interpolation because they are at a scene change, you can eventually replace them with a prevous/next frame. Same for frames 120 and 121.

About restoration processing, it really dependes on your taste. Just avoid over-denoising (SMDegrain is not needed if you use TemporalDegrain2) and over-sharpening.

SMDegrain removed and added dehalo_alpha() after LSFmod(defaults="slow") line. Thanks

[lollo]

SMDegrain removed and added dehalo_alpha() after LSFmod(defaults="slow") line. Thanks

remove dehalo_alpha; you do not want to introduce halos with LSFmod (i did not check if there are some) and then remove them with dehalo_alpha; eventually change the settings of LSFmod or change sharpener or do not sharp at all, instead.