VideoHelp Forum




+ Reply to Thread
Results 1 to 10 of 10
  1. Hello friends, does anyone know how to remove these horizontal lines?
    2A1_t00-00.04.25.063-00.04.30.494.mkv
    Quote Quote  
  2. What horizontal lines? I don't see even one.
    Quote Quote  
  3. I'm a Super Moderator johns0's Avatar
    Join Date
    Jun 2002
    Location
    canada
    Search Comp PM
    Looks like interference from a power source.
    I think,therefore i am a hamster.
    Quote Quote  
  4. Originally Posted by johnmeyer View Post
    What horizontal lines? I don't see even one.
    Stop the video that you watch better, in darker areas it can be seen more clearly!
    Quote Quote  
  5. Member
    Join Date
    May 2005
    Location
    PAL User
    Search Comp PM
    Interesting. When I play it in Virtual Dub, I see no lines. When I play it in VLC Player, the lines stick out like the proverbial.
    Quote Quote  
  6. It's just masked by the messy residual interlaced structure. When you bob-deinterlace it the interference stripes pop out.
    One can mitigate it by applying a vertical blur which however would blur the picture.

    Try something like
    Code:
    LWLibavVideoSource("2A1_t00-00.04.25.063-00.04.30.494.mkv")
    TFM()
    separatefields().vinverse().blur(0,0.7).weave()
    Image Attached Files
    Last edited by Sharc; 22nd Jun 2023 at 07:49.
    Quote Quote  
  7. Vertically blurred but preserving sharp edges:

    Code:
    LWLibavVideoSource("2A1_t00-00.04.25.063-00.04.30.494.mkv", cache=false, prefer_hw=2) 
    TFM() # restore progressive frames
    
    emask = Blur(1.5, 0).mt_edge("prewitt", thy1=50, thy2=50).Blur(1.0)
    blurred = BilinearResize(width, height/3).Spline36Resize(width, height)
    Overlay(blurred, last, mask=emask)
    Image Attached Files
    Quote Quote  
  8. MiniDeen with 5x5 for YUV + mClean works but is rather destructive: https://imgsli.com/MTg3NjIz
    Maybe defreq could be used for this,...
    users currently on my ignore list: deadrats, Stears555, marcorocchini
    Quote Quote  
  9. Interesting. The problem shows up clearly on a different computer. The smaller display on my laptop must have "cured" the problem via resizing.
    Quote Quote  
  10. Ok, thanks everyone for the answers, I'll test and see what I get, the idea is to keep the original quality but remove those damn lines xD
    Quote Quote  



Similar Threads

Visit our sponsor! Try DVDFab and backup Blu-rays!