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  1. Hello. As usual, the first thing I did was to call separatefields() but I'm not sure what to make of the result. Even with assumetff()/assumebff() there's a 'picture wobble' I've not encountered before. Anyone willing to have a look and tell me how to handle it has my thanks.
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  2. What do you mean by picture wobble? I see some jerky camerawork but otherwise it's normal interlaced tff video.

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  3. Hi and thanks, jagabo. I can't explain my 'wobble' in words so here's a pic of 4 consecutive frames with separatefields() called. See how the wall is more or less straight in the first two frames yet appears bent one way then the other in frames 3 and 4...
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  4. Those are just compression artifacts. SMDegrain() might be able to reduce that.
    Last edited by jagabo; 21st Sep 2021 at 11:17.
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  5. OK, thanks.
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  6. Member Skiller's Avatar
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    If you are talking about the edge of the blue wall on the right bending, that is the infamous rolling shutter effect. It is caused by the CMOS sensor in the camera and there is pretty much nothing you can do about it at this stage.
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  7. I thought he was talking about the yellowish wall just behind the woman's knee. But I don't see those artifacts when I use SeparateFields() and step through the video. I think he has some temporal filtering issue.

    Bob(0.0, 1.0)
    ShowFrameNumber(x=20, y=20)
    StackHorizontal(last, last.Trim(1,0), last.Trim(2,0), last.Trim(4,0))
    [Attachment 60855 - Click to enlarge]
    Last edited by jagabo; 21st Sep 2021 at 20:09.
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  8. Yes, it was the blue wall on the right I meant. There's an obvious bend (one way then the other) in the last two frames (post #3) which aren't in jagabo's attachment. I've just loaded the script again with separatefields and the bend has gone this time! Very weird...

    Jagabo, in your post, you say you've used SeparateFields() but it's not part of your script. Is 'Bob' an equivalent?
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  9. SeparateFields() leaves you with half height images. Bob() separates the fields then resizes each field to the full height of the original frame. I don't know what you used to make your image but it wasn't simply SeparateFields() because the images aren't half height.
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  10. Member Skiller's Avatar
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    @ pooksahib
    Well, you should have mentioned your first screenshots aren't unprocessed (anything more than SeparateFields()).
    I did not look at the video sample because it seemed quite logical to assume it's a rolling shutter issue.
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  11. With a new DVD, I index it using MeGUI. If I see mouseteeth, I run the script with SeparateFields() and, yes, the preview is half height but MeGUI's preview window has a 'Preview DAR' tickbox. I tick it simply to better see whether there's movement every frame or 2nd frame. Perhaps I should be making that check while the preview is still half-height? Or with SeparateFields() followed by Bob()? Or just Bob() and forget about SeparateFields()?
    Last edited by pooksahib; 22nd Sep 2021 at 11:33.
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  12. Member Skiller's Avatar
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    Having SeparateFields() followed by Bob() is wrong in any case. Use either one but not both. Pick the one you like better. Personally I would use Bob() because I find it easier to see stuff with full height frames.
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  13. Danke, Skiller. I suspected that Bob and Separatefields were interchangeable but left every possibility in my question.
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  14. I've been trying to find out why jagabo has used "Bob(0.0, 1.0)" rather than just Bob() but I've failed miserably. So, why the 0.0, 1.0?

    Similarly, I've experimented and it seems that "StackHorizontal(last, last.Trim(1,0), last.Trim(2,0), last.Trim(4,0))" has the same effect as simply saying "StackHorizontal(last)". Why the longer command?

    Last edited by pooksahib; 22nd Sep 2021 at 16:54. Reason: additional query
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    Bob(0.0, 1.0) preserves the original fields for RGB and YUY2 and preserves the Luma but not the Chroma for YV12.
    It doesn't matter for the purposes discussed here.
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  16. Noted, thanks. What would you say to my StackHorizontal observation?
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  17. Originally Posted by pooksahib View Post
    Noted, thanks. What would you say to my StackHorizontal observation?
    It's wrong.

    StackHorizontal(last, last.Trim(1,0), last.Trim(2,0), last.Trim(3,0)) stacks four consecutive frames side by side.

    StackHorizontal(last) stacks the same frame side by side.

    BlankClip(width=320, height=240)
    ShowFrameNumber(x=40, y=150, size=100)
    v0 = Addborders(0,0,960,0).Subtitle("sequentially numbered frames:")
    v1 = StackHorizontal(last, last.Trim(1,0), last.Trim(2,0), last.Trim(3,0)).Subtitle("StackHorizontal(last, last.Trim(1,0), last.Trim(2,0), last.Trim(3,0)):")
    v2 = Subtitle(last, "StackHorizontal(last) StackHorizontal(last):")
    StackVertical(v0, v1, v2)
    [Attachment 60918 - Click to enlarge]

    Oops, I noticed that the last Trim() in post #7 was Trim(4,0) -- it was supposed to be Trim(3,0).
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  18. Got it, thanks.
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  19. Since I'm currently testing clip on getting a feel on when to use BasicVSR++:
    # Imports
    import os
    import sys
    import ctypes
    # Loading Support Files
    Dllref = ctypes.windll.LoadLibrary("I:/Hybrid/64bit/vsfilters/Support/libfftw3f-3.dll")
    import vapoursynth as vs
    # getting Vapoursynth core
    core = vs.core
    # Import scripts folder
    scriptPath = 'I:/Hybrid/64bit/vsscripts'
    sys.path.insert(0, os.path.abspath(scriptPath))
    # Loading Plugins
    # Import scripts
    import havsfunc
    # source: 'C:\Users\Selur\Desktop\sample.mpg'
    # current color space: YUV420P8, bit depth: 8, resolution: 720x576, fps: 25, color matrix: 470bg, yuv luminance scale: limited, scanorder: top field first
    # Loading C:\Users\Selur\Desktop\sample.mpg using D2VSource
    clip = core.d2v.Source(input="E:/Temp/mpg_54f90a4a45a95fd36fd7cd2830232176_853323747.d2v", rff=False)
    # making sure input color matrix is set as 470bg
    clip = core.resize.Bicubic(clip, matrix_in_s="470bg",range_s="limited")
    # making sure frame rate is set to 25
    clip = core.std.AssumeFPS(clip=clip, fpsnum=25, fpsden=1)
    # Setting color range to TV (limited) range.
    clip = core.std.SetFrameProp(clip=clip, prop="_ColorRange", intval=1)
    # setting field order to what QTGMC should assume (top field first)
    clip = core.std.SetFrameProp(clip=clip, prop="_FieldBased", intval=2)
    # Deinterlacing using QTGMC
    clip = havsfunc.QTGMC(Input=clip, Preset="Fast", TFF=True) # new fps: 25
    # make sure content is preceived as frame based
    clip = core.std.SetFieldBased(clip, 0)
    clip = clip[::2]
    # adjusting color space from YUV420P8 to RGBS for vsBasicVSRPPFilter
    clip = core.resize.Bicubic(clip=clip, format=vs.RGBS, matrix_in_s="470bg", range_s="limited")
    # Quality enhancement using BasicVSR++
    from vsbasicvsrpp import BasicVSRPP
    clip = BasicVSRPP(clip=clip, model=3, tile_x=360, tile_y=288)
    # adjusting color space from RGBS to YUV444P16 for vsEdgeFixer
    clip = core.resize.Bicubic(clip=clip, format=vs.YUV444P16, matrix_s="470bg", range_s="limited")
    # Fix bright and dark line artifacts near the border of an image using EdgeFixer
    clip = core.edgefixer.Continuity(clip=clip,left=8,top=4,right=4,bottom=4,radius=10)
    # cropping the video to 704x568
    clip = core.std.CropRel(clip=clip, left=4, right=12, top=2, bottom=6)
    # adjusting output color from: YUV444P16 to YUV420P10 for x265Model
    clip = core.resize.Bicubic(clip=clip, format=vs.YUV420P10, range_s="limited")
    # set output frame rate to 25.000fps
    clip = core.std.AssumeFPS(clip=clip, fpsnum=25, fpsden=1)
    # Output

    Cu Selur
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    users currently on my ignore list: deadrats, Stears555
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