Looking for the best deinterlacing for near-horizontal lines

[Bwaak]

Attached is a video clip. I am looking for the smoothest lines that are angled, especially ones that are almost horizontal. I used MSU Deinterlacer for my upload to Youtube, I decided to try QTGMC and was disgusted with what I saw. Clearly, I cannot cook it For starters, I tried using border = true, but VDub threw an exception. Should I use another host for Avisynth or update its filters? Where on Windows I can run Avisynth scripts besides VDub?

Anyway, here is the clip in Cineform. If needed, I can re-encode with a different codec.

[Selur]

For the future: You might want to save this as interlaced Cineform while it's interlaced.
According to MediaInfo this file uses progressive Cineform, which might be an issue.
If that really is your source, one major problem is that the aliasing is alread present in the separate fields.
Top:

Bottom:

so additionally to deinterlacing your will need some anti-aliasing.

[poisondeathray]

Should I use another host for Avisynth or update its filters? Where on Windows I can run Avisynth scripts besides VDub?

vdub is pretty solid for avs script preview - if there is an exception error then something is wrong with your setup - perhaps one of the prerequisites .

Alternatively, you can preview scripts in mpchc or avspmod ; or check with avsmeter; or ffplay and encode with ffmpeg

I think are GUI's that have QTGMC bundled - such as staxrip and Selur's hybrid

[Selur]

For visualisation, here's what QTGMC+santiag(strh=2, strv=2, nns=3, pscrn=2)+3xYAHR(blur=1, depth=16) does: https://imgsli.com/MjM3MDgw
QTGMC(Fast) for deinterlacing
Santiag for anti-aliasing
YAHR for de-haloing

I think are GUI's that have QTGMC bundled - such as staxrip and Selur's hybrid

There's also MeGui, RipBot, Qtgmc-GUI,.. and a bunch of others.
(Hybrid is probably the last I would recommend to start with, since it assumes that the user knows what he is doing.)

Cu Selur

[Bwaak]

so additionally to deinterlacing your will need some anti-aliasing.

VDub2 has no settings for interlaced/progressive. Older codec has, but it crashes when switched to interlaced. I'll search on anti-aliasing, thanks.

[Selur]

VDub2 has no settings for interlaced/progressive.

Okay, if VDub2 does not support interlaced encoding with CineForm, then you should not use CineForm when you want to export interlaced content.
(or convert it to progressive content beforehand)

I'll search on anti-aliasing, thanks.

You might want to also look into halo removal.

[lollo]

Bwaak, first of all try capturing the same sequence with a lossless codec (HuffyYUV, supporting interlaced) to check if the jagged lines are present in the original fields (not frames) as well

[Bwaak]

Okay, if VDub2 does not support interlaced encoding with CineForm, then you should not use CineForm when you want to export interlaced content. (or convert it to progressive content beforehand)

It is interlaced. It is just marked progressive.

For visualisation, here's what QTGMC+santiag(strh=2, strv=2, nns=3, pscrn=2)+3xYAHR(blur=1, depth=16) does: https://imgsli.com/MjM3MDgw
QTGMC(Fast) for deinterlacing
Santiag for anti-aliasing
YAHR for de-haloing

This looks very nice! In my case, QTGMC creates horrible wavy artifacts on the top of the windows. Can you post the full script?

[Selur]

Can you post the full script?

Sure (https://pastebin.com/Wj7ScWP5), but I'm using Vapoursynth not Avisynth (since it's faster and more stable for me).
All filters used are available for Avisynth too:
QTGMC: http://avisynth.nl/index.php/QTGMC
YAHR: http://avisynth.nl/index.php/YAHR
Santiag: http://avisynth.nl/index.php/Santiag

Cu Selur