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  1. I am getting these jagged edges from a PAL DVD I ripped using DVD Decrypter and I am unable to get rid of them using any of Handbrake's deinterlace or detelecine filters. In the example image below they are most pronounced in the ceiling.
    Image
    [Attachment 52804 - Click to enlarge]


    I assume these are interlacing artifacts since I inspected the video in Mediainfo (data posted at the bottom), which reports it to be interlaced. The jagged edges are there on stationary as well as objects in motion though. And if I understand correctly interlacing would be most pronounced on objects in motion so I am not sure they are interlacing artifacts.

    One thing I noticed is that when i play the video in VLC I can get a clear picture (see picture below) if I skip 10 seconds ahead while the video is paused, but resuming the video playback returns the jagged edges.

    Image
    [Attachment 52805 - Click to enlarge]


    To me this seems like a clear signal that these artifacts can be removed somehow.

    Do any of you know what they are and how I would go about getting rid of them when i encode the video?

    I have attached a VOB from the extra material on the DVD as this was small in size and I don't know how to cut them without encoding them:



    Code:
    Video
    ID                                       : 224 (0xE0)
    Format                                   : MPEG Video
    Format version                           : Version 2
    Format profile                           : Main@Main
    Format settings                          : CustomMatrix / BVOP
    Format settings, BVOP                    : Yes
    Format settings, Matrix                  : Custom
    Format settings, GOP                     : M=3, N=12
    Format settings, picture structure       : Frame
    Duration                                 : 1 min 43 s
    Bit rate mode                            : Variable
    Bit rate                                 : 4 173 kb/s
    Maximum bit rate                         : 6 500 kb/s
    Width                                    : 720 pixels
    Height                                   : 576 pixels
    Display aspect ratio                     : 4:3
    Frame rate                               : 25.000 FPS
    Standard                                 : PAL
    Color space                              : YUV
    Chroma subsampling                       : 4:2:0
    Bit depth                                : 8 bits
    Scan type                                : Interlaced
    Scan order                               : Bottom Field First
    Compression mode                         : Lossy
    Bits/(Pixel*Frame)                       : 0.402
    Time code of first frame                 : 00:27:49:01
    Time code source                         : Group of pictures header
    GOP, Open/Closed                         : Closed
    Stream size                              : 51.7 MiB (94%)
    Color primaries                          : BT.601 PAL
    Transfer characteristics                 : BT.470 System B/G
    Matrix coefficients                      : BT.601
    Image Attached Files
    Quote Quote  
  2. Most PAL DVDs are encoded as interlaced, even if the content is progressive. Your video is progressive. That's not interlacing artifacts but aliasing, sometimes called jaggies. You might try the AviSynth filter Santiag on it (Santiag(3,3) or your own settings), or some other anti-aliasing filter:

    http://avisynth.nl/index.php/External_filters#Anti-aliasing

    Forget Handbrake.
    Quote Quote  
  3. Thank you very much for your help! the santiag filter worked great.
    I had never used avisynth before so I had to mess around a bit, but I am happy to have tried that as well.

    Image
    [Attachment 52813 - Click to enlarge]
    Quote Quote  
  4. Good, I'm glad the suggestion worked. And, I must say, you're a quick learner as many find AviSynth very very difficult to learn. But, since you had to "mess around a bit" to get it going, that may have meant it took many hours of work to figure it out. Even so, though, good going!

    You might even dump Handbrake as a result
    Quote Quote  



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