Late 80's early 90's hi8 video upscale

I’ll tell you what works pretty well for my Video8 files. it is not perfect, but plausible results and it retains the original look and feel of the video with not much destruction of details.

  1. I Deinterlace my source video(s) using Hybrid free tool (QTGMC deinterlacing filter) and export as Lossless Compression .
    If your video/source is not interlaced, you can skip this step.
    You can use MediaInfo tool to determine if your video is interlaced or progressive scan (not Interlaced)

  2. Feed the deinterlaced video(s) into TVAI and enhance using Nyx v3 at “Relative to Auto”, leaving everything at default “0” and reducing Dehalo to “-100” as shown: Here
    Enhance another copy of the original video, but this time use Iris LQ v2 in “Manual” mode leaving everything at “0”, as Shown: Here.
    Export both at the same/original resolution (no Upscaling) and Export using FFV1 Lossless compression.
    You can also try exporting a 3rd copy using Proteus v4 with the same settings like you did with Nyx (“Relative to Auto” → Dehalo= -100, the rest at “0”. again, same resolution at Lossless compression FFV1).
    My Videos are very short so I don’t mind exporting it fully few time, but if your videos are longer you might want to export like a 30s Preview each, to save time. Just make sure you export the same preview (part of the video) on all 2 or 3 exports, that way you can truly evaluate the difference in quality once you will upscale them.

  3. Upscale x2 the previously enhanced videos (or previews if you elected to do previews instead) in TVAI (again), this time I use Dione TV , both my Nyx and Iris (2 videos in total, if you also exported a copy with Proteus v4, then 3 videos in total).
    Export using FFV1 lossless

  4. Then I use the Video-Compare Tool to compare the results (Example) between the Nyx → Dione TV vs. Iris LQ (v2) → Dione TV and Proteus v4 → Dione TV, in case you exported Proteus as well.

  5. The winner! then is fed into Handbrake encoding it to x265 to reduce the file size (you can use x264 if you need legacy device compatibility) with the settings of CRF between 21-23.
    That way I get almost as lossless quality but much much smaller file size.
    You can read more about the CRF value settings Here that might work best for you.

EDIT: Lately I discovered that Upscaling x2 Directly from the Original using Proteus v4 works pretty well, with the settings of: “Manual Mode”, Fix Compression=40, Improve Details=40, the rest I leave at “0” (Example), that works well if your video is noisy.
Another settings I found works pretty good for me for Direct x2 Upscale with Proteus v4, is: “Relative to Auto”, Dehalo= “-100”, the rest at “0” (example)
Use the Video-Compare Tool to compare the results…

Good Luck. let me know how it went…

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