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-   -   Upscaling NTSC VHS to 1080p with Hybrid? (https://www.digitalfaq.com/forum/video-restore/12401-upscaling-ntsc-vhs.html)

Closecall 05-05-2022 02:11 AM

Thank you for the reply so fast.

I am assuming the settings you're using are the ones for your program and not Hybrid correct?

latreche34 05-05-2022 02:49 AM

It's actually built in the capture device and are part of the proc amp after the video has been converted to digital, A link to those menu pages.

Closecall 05-09-2022 11:16 AM

Interesting.

Also I wanted to ask when you do your video conversion down and then up for 720x480 --> 704x480 --> 1440x1080
Are you just using the normal resize or are you using the resize tool inside of AVIsynth or Vapoursynth? Could you possibly post your settings so I could see exactly what you're doing?

Thank you!

latreche34 05-09-2022 12:04 PM

720x480 -> De-interlace -> Crop to active video area -> Upscale to 1440x1080 all in one step using multiscript avspmod frame visualizer.

Code:

AviSource("C:\Users\User\Desktop\graduation.avi")
AssumeTFF()
QTGMC(Preset="Fast")
Crop(X1, Y1, X2, Y2)
LanczosResize(1440, 1080)


Closecall 05-09-2022 06:42 PM

Quote:

Originally Posted by latreche34 (Post 84675)
720x480 -> De-interlace -> Crop to active video area -> Upscale to 1440x1080 all in one step using multiscript avspmod frame visualizer.

Code:

AviSource("C:\Users\User\Desktop\graduation.avi")
AssumeTFF()
QTGMC(Preset="Fast")
Crop(X1, Y1, X2, Y2)
LanczosResize(1440, 1080)


So that would bring it down to 704x528 and upscale to 1440, 1080 all at once?

latreche34 05-09-2022 07:52 PM

No, Where did you come up with 528?

Closecall 05-11-2022 02:47 PM

My mistake. I meant 704x480. As you mentioned in a past post on this thread bringing it down to 704 before upscaling to 1440.

latreche34 05-11-2022 04:18 PM

You can bring it down to any resolution as long as you crop in a 704:480 ratio so you don't alter the frame's geometry, Meaning if you have to crop to 698 horizontally, 698x480/704 = 476, the new resolution will be 698x476, resize this to 1440x1080.

dudebuddy 06-28-2022 08:24 AM

Quote:

Originally Posted by latreche34 (Post 84675)
720x480 -> De-interlace -> Crop to active video area -> Upscale to 1440x1080 all in one step using multiscript avspmod frame visualizer.

Code:

AviSource("C:\Users\User\Desktop\graduation.avi")
AssumeTFF()
QTGMC(Preset="Fast")
Crop(X1, Y1, X2, Y2)
LanczosResize(1440, 1080)


I also found this thread super helpful. Just had one question about cropping the video.

Example:
I need to crop all sides to get rid of the overscan...
Right: 8
Left: 8
Bottom: 8
Top: 2

This would bring the resolution to 704x470

Do you take any additional steps if you need to crop the overscan on the top and/or bottom?

latreche34 06-28-2022 09:30 AM

704x470 is a wrong aspect ratio, I don't understand your question, you've already cropped the image.

dudebuddy 06-28-2022 09:36 AM

How do you get rid of the overscan on the top and bottom while keeping the correct aspect ratio??

traal 06-28-2022 09:51 AM

Code:

AviSource("C:\Users\User\Desktop\graduation.avi")
AssumeTFF()
QTGMC(Preset="Fast")

# Crop Right=8, Top=2, Left=8, Bottom=8; result=704x470
Crop(8, 2, -8, -8)

# Center the 704x470 video in a 704x480 frame to restore the 10:11 PAR
AddBorders(0,5,0,5)


# Upscale to square pixels
LanczosResize(1440, 1080)

This adds black borders at the top and bottom in order to keep the correct PAR.

latreche34 06-28-2022 10:15 AM

Quote:

Originally Posted by dudebuddy (Post 85481)
How do you get rid of the overscan on the top and bottom while keeping the correct aspect ratio??

By cropping proportionally or masking off.

dudebuddy 06-29-2022 10:03 AM

What codec/file format do you export to?

Thanks for the info!

latreche34 06-29-2022 10:49 AM

Lossless HuffYUV.

dudebuddy 06-29-2022 09:40 PM

Quote:

Originally Posted by latreche34 (Post 85507)
Lossless HuffYUV.

Once you have the upscaled lossless avi, what application or script do you use to encode to MP4? And would you mind sharing your settings/script?

I’m using hybrid, but don’t like the results using the settings I’ve seen on this forum and others. After doing some digging, I figured out settings in hybrid that make the MP4 look pretty much identical to the lossless avi, but the encoding is taking way to long. So I’m searching and hoping I can find a way to encode a little faster while keeping the same quality.

latreche34 06-30-2022 12:15 AM

My encoding is about 5-10 frames a second, not what you are looking for.


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