VideoHelp Forum


Try DVD-Fab Video Downloader and rip Netflix video! Or Try DVD-Fab and copy Blu-rays! or rip iTunes movies!
+ Reply to Thread
Results 1 to 5 of 5
Thread
  1. Member
    Join Date
    May 2020
    Location
    Liverpool, United Kingdom
    Search Comp PM
    Hi guys,

    I've had some home videos that have been captured via an external company a couple of years ago. I am just getting around to restoration now, still a beginner and learning. Some videos have an issue with the hue, which appears to shift to a green predominance every alternative frame. This is consistent throughout the entire file. I don't have any method to recapture at the present time, so are there any filtering techniques that can be used?

    I have access to all the Adobe Suite (for colouring old photographs, usually), so is there any effects options in After Effects or Premiere Pro that may be able to remedy this? I have attached a very small clip segment from the video in question.

    https://photos.google.com/share/AF1QipPjgWDzE1FH1PIQN7t8YKFrIiTTtY1he01hHKhBpKQXsXLcyv...VWMlY4dTFrU09B

    Image
    [Attachment 53382 - Click to enlarge]
    Image
    [Attachment 53383 - Click to enlarge]


    Thank you, all!
    Last edited by ColourMyPast; 21st May 2020 at 02:16.
    Quote Quote  
  2. Member
    Join Date
    May 2020
    Location
    Liverpool, United Kingdom
    Search Comp PM
    Bump
    Quote Quote  
  3. That can probably be fixed in AviSynth. But a video sample is needed. One dirty trick if there isn't too much motion is to simply copy the chroma from the adjacent good frames to the bad frames:

    Image
    [Attachment 57171 - Click to enlarge]
    Quote Quote  
  4. He has posted the sample jagabo.

    from what i can see every other frame has a hue shift

    my quick (lazy) solution
    LWLibavVideoSource("Abb1_1.mp4")
    coloryuv(off_u=10,off_v=0,cont_v=0,cont_u=0,gamma_ v=0,autowhite=false)
    ConvertToYV16(matrix="Rec601",interlaced=false)
    U = UToY().ttempsmooth(maxr=1,lthresh=150, strength=1)
    V=VToY().ttempsmooth(maxr=1,lthresh=150, strength=1)
    YToUV(U,V,last)
    converttoyv12(matrix="Rec601",interlaced=false)

    ConverttoRGB32(matrix="rec601",interlaced=false)
    LoadVirtualDubPlugin("C:\Program Files (x86)\Virtualdub\plugins32\ccd_sse2.vdf", "CCD", 0)
    CCD(10,1) # 0 to 100 Default =30
    converttoyv12(matrix="Rec601",interlaced=false)
    ############ ANALYSE ###################
    Histogram("levels")
    Quote Quote  
  5. I see. The google link starts with "photo" so I though it was only the images. Here I removed the duplicate frames and made the green frames look about like the others:

    Code:
    LWLibavVideoSource("Abb1_1.mp4") 
    Trim(0,143)
    SelectEvery(6, 0,1,2,4,5)
    e = SelectEven()
    o = SelectOdd().ColorYUV(off_u=16, off_v=8).ColorYUV(cont_u=-50, cont_v=-50)
    Interleave(e,o)
    Follow that with some temporal smoothing, saturation adjustments, etc.

    In the future the OP should post the original video, not deinterlaced and frame rate converted video.
    Quote Quote  



Similar Threads