Lots of vertical black and white bar artifacts on the DVD

[killerteengohan]

I have a DVD I would like to clean up. It has come out pretty nice but this one episode has artifacts on it that I do not know how to clean without blurring the video so badly that its not worth it, or really overkill DNR which destroys most of the video.

Here are a couple screenshots of it.

https://i.imgur.com/fAzQImC.png
https://i.imgur.com/Tz6D4IY.png


Any suggestions on how I can clean that without obliterating everything else? I tried powerful dehalo filter settings, but that didn't work.

[jagabo]

Something along the lines of this isn't too damaging:

Spline36Resize(412, height)
TurnRight()
vInverse()
TurnLeft()
Spline36Resize(640, height)

With maybe a little sharpening while downscaled and after upscaling.

[Selur]

small typo "Spline36Resize(720.height)" should be "Spline36Resize(720,height)"

[jagabo]

Oh, yes. Thanks. I originally had a slightly different script and screwed up when I changed it for posting. I also used the wrong value for the width of the source image. I'll fix the post to eliminate any confusion.

[jagabo]

You might protect some of the sharper vertical lines with something like:

ImageSource("fAzQImC.png", start=0, end=23, fps=23.976)
ConvertToYV12()
src = last

Spline36Resize(412, height)
TurnRight()
vInverse()
TurnLeft()
Spline36Resize(640, height)

emask = sharpen(1.0, 0.0).mt_edge("-1 2 -1   -1 2 -1   -1 2 -1").mt_expand().mt_inpand().Blur(1.5)
Overlay(last, src, mask=emask)

[Attachment 84022 - Click to enlarge]

The script will have to be adjusted if he's using a DVD source.

[killerteengohan]

You might protect some of the sharper vertical lines with something like:

ImageSource("fAzQImC.png", start=0, end=23, fps=23.976)
ConvertToYV12()
src = last

Spline36Resize(412, height)
TurnRight()
vInverse()
TurnLeft()
Spline36Resize(640, height)

emask = sharpen(1.0, 0.0).mt_edge("-1 2 -1   -1 2 -1   -1 2 -1").mt_expand().mt_inpand().Blur(1.5)
Overlay(last, src, mask=emask)

The script will have to be adjusted if he's using a DVD source.

That's actually pretty impressive. The results aren't really that bad either. Some smaller line in some areas look like I used an antialiaser and smudged, but its hardly bad.

You essentially just rotated the image, used vinverse on it, then rotated it back? I would have never thought of using vinverse at all let alone a horizontal cheat like that lol.

I just toned down the power of vinverse a bit and the destruction is almost nothing. It also softened a bit less.

https://slow.pics/c/7UNt2mvo

src = last
Spline36Resize(412, height)
TurnRight()
vinverse(amnt=5, sstr=3.5, scl=0.75)
TurnLeft()
LimitedSharpenFaster(ss_x=1.00, ss_y=1.00, strength=2, overshoot=0, undershoot=0, soft=0, edgemode=0)
lanczosresize(640,480)

emask = sharpen(1.0, 0.0).mt_edge("-1 2 -1   -1 2 -1   -1 2 -1").mt_expand().mt_inpand().Blur(1.5)
Overlay(last, src, mask=emask)
MergeChroma(last, src)
LimitedSharpenFaster(ss_x=1.00, ss_y=1.00, strength=5, overshoot=0, undershoot=0, soft=0, edgemode=0)

This came out great!

Thanks!