How To Deinterlace

Discussion in 'Digital Video' started by h4mmer34, Jun 29, 2011.

  1. h4mmer34 macrumors member

    Joined:
    Jan 4, 2011
    #1
    After making several skate videos to put on youtube using iMovie, i realized they were interlaced and look horrible. What can i use to deinterlace them? I tried using JES but it didnt work. Any other options? Thanks!
     
  2. fpnc macrumors 68000

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    #2
    I've used JES Deinterlacer for years (off and on) and it usually works pretty well.

    Your other options would be Handbrake (recommended if you want to post H.264) and MPEG Streamclip (if you want to export the deinterlaced video into a QuickTime format).
     
  3. xStep macrumors 68000

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    #3
    You can use the QuickTime export option and in that select de-interlace. My iMovie Export Guide glosses over that.
     
  4. fpnc macrumors 68000

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    #4
    Yes, you could use QuickTime, but both Handbrake and MPEG Streamclip will do a MUCH better job.
     
  5. xStep macrumors 68000

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    #5
    Perhaps, but the question wasn't what is better, but simply to provide options.
     
  6. THX1139 macrumors 68000

    THX1139

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    #6
    I just completed a video where I had to deinterlace SD footage so that I could resize it to 720 with Magic Bullet. I tried Compressor, MPEG StreamClip, Quicktime, and JES deinterlacer. Out of the 4, JES gave me the best results. There are other options out there, but I liked that I could deinterlace the footage and convert to Prores prior to bringing it into my editing program
     
  7. fpnc, Jun 29, 2011
    Last edited: Jun 29, 2011

    fpnc macrumors 68000

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    #7
    It should be noted that Handbrake, JES Deinterlacer, and MPEG Streamclip are completely free and available from locations like CNET Downloads (formerly VersionTracker). If you are doing any form of prosumer video work you'll want all three of these utilities.

    Handbrake is probably the best H.264 video compressor that you're going to find and it offers really good deinterlace and decomb filters (try decomb, look under Picture Settings > Filters). It's only real weakness is that it outputs only in MPEG4 and H.264 but if you plan on posting to Youtube that should be fine. It also seems to have some problems with the types of inputs that it will accept, which I guess could be considered an even more serious shortcoming that only outputting in MPEG4/H.264.

    JES Deinterlacer is a little fussy and has some bugs, but when it works (which is most of the time) it can produce some really good deinterlacing and standards conversions.

    MPEG Streamclip also has a pretty good deinterlacer and it's compatible with many of the QuickTime formats and allows export into just about every format that QuickTime supports.
     
  8. TMRaven macrumors 68020

    TMRaven

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    Nov 5, 2009
    #8
    JES deinterlacer is old and not very efficient/has a bad quality deinterlacer.

    Two of the very best options you can get for free on osx are from Handbrake and avidemux:

    Handbrake uses yadif-- a decently high quality motion estimated deinterlacer on frames with lots of combing, and a low-pass 5 filter on frames with not much combing. Low-pass 5 is just a blur filter, and it will result in more detail.

    Avidemux gives considerably more options and all the same high quality x264 codecs as handbrake, but also other options for deinterlacing. It gives access to yadif, low pass 5 and tdient among others.

    The absolute best deinterlacer you can get for free (also takes a while to finish) is tempgaussmc, but the easiest way to access that is through aviproxy on windows, and not osx. It's an avisynth filter, and via the proxy it can be used with avidemux. It's a motion compensated deinterlacer that uses the edi interpolator and temporal gaussian blurring to refine edges to reduce edgy lines that yadif, low pass 5 and especially tdient can leave. It also doubles as a bobber, meaning that it will take each interlaced field in the vid and make it into its own frame, so makes the vid 60p.
     
  9. DisMyMac macrumors 65816

    DisMyMac

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    Sep 30, 2009
    #9
    You can sometimes force-open a file in Handbrake (drag the file over the HB icon, then press command-option and release the mouse). I forget which filetypes work, but I've done it successfully.
     
  10. THX1139 macrumors 68000

    THX1139

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    #10
    Just reading that sentence made my head hurt.
     

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