VideoHelp Forum




+ Reply to Thread
Results 1 to 6 of 6
  1. Hello everyone,

    I am getting heavy interlacing in the video I am trying to make.

    This is what I have done:
    1. Transferred the DV avi from the camcorder using WinDV through IEEE
    2. Made a .avs script in Avisynth and loaded it and the video into Main Concept Encoder
    3. Finally encoded it to DVD format.


    Attached is the screenshot.
    [img]https://www.videohelp.com/forum/images/guides/p1410912/screenshot.jpg

    I used the following avisynth code from John "FulciLives" Coleman -

    LoadPlugin("Convolution3d.dll")
    avisource("C:\Documents and Settings\Kunal Joshi\Desktop\capture.avi")
    ConvertToYUY2(interlaced=true)
    crop(8,4,-8,-12)
    SeparateFields()
    odd=SelectOdd.Convolution3D (0, 32, 128, 16, 64, 10, 0)
    evn=SelectEven.Convolution3D (0, 32, 128, 16, 64, 10, 0)
    Interleave(evn,odd)
    Weave()
    AddBorders(8,4,8,4)

    By using the above Avisynth code I am getting high quality video but with heavy interlacing especially in the scenes where there is motion.

    Somebody please help me out to make this video look good.

    Thank You.
    Quote Quote  
  2. Always Watching guns1inger's Avatar
    Join Date
    Apr 2004
    Location
    Miskatonic U
    Search Comp PM
    Have you burned this to DVD and watched it on your TV, or only viewed the output on your PC ?

    Your PC will exhibit interlacing due to it being a progressive display. Some software, such as PowerDVD, can do a good job at correcting for this during playback. The same footage viewed on your TV should look quite alright.

    If you find that the footage still looks wrong on the TV, check the field order to make sure it didn't get reversed during the process.
    Read my blog here.
    Quote Quote  
  3. guns1inger,

    Thanks for the quick reply.

    I haven't burned it to a DVD and neither have I watched it on TV. But I will try it tonight.

    I just watched it on my computer. I tried playing it in PowerDVD but it does not allow me to open the video
    I don't know why !

    By field order: do you mean to interchange the bottom field first (BFF) with Top Field First (TFF). Right now I am using BFF.

    Thanks.
    Quote Quote  
  4. Always Watching guns1inger's Avatar
    Join Date
    Apr 2004
    Location
    Miskatonic U
    Search Comp PM
    I suspect it is just the progressive display issue then. Use a DVD RW and you should be cool.
    Read my blog here.
    Quote Quote  
  5. guns1inger,

    I tried watching it on the TV.

    The quality looks better than what it looks like on the computer screen. But still there is a bit of jerkiness in the video and also the video looks bad when the camera is moving.

    Do you have any idea as to how to improve this ?

    Thanks again.
    Quote Quote  
  6. The first thing is to skip the AVISynth step until you get the DVD buring part worked out. Other things to do, if you're not already, are to get a DVD-RW or DVD+RW disk for experimenting. And work with a short section of video so you don't have to wait a long time between experiments.

    DV AVI is bottom field first so be sure your MPEG2 conversion or DVD mastering program identifies the source as interlaced and bottom field first.

    Back on the AVISynth script, it probably wouldn't hurt to add AssumeBFF before SeparateFields.
    Quote Quote  



Similar Threads

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