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  1. Member
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    Oct 2008
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    I have an uncompressed .AVI file (RGB) that is 1920x1080 resolution. I would like to resize the video down to 720x480 while maintaining as much quality as possible. Is anyone aware of a program that will do this?

    I realize the aspect ratios are different, but I am trying to get this to 720x480 before I encode it and eventually author it to DVD.
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  2. I'm a MEGA Super Moderator Baldrick's Avatar
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    WHy not convert directly to dvd mpeg2?
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  3. Member
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    I haven't been pleased with the results when I allow the encoder to resize the video. too I have tried many encoders and the results have all been similarly poor, so I was looking to try a different approach -- resize before encoding -- instead of resizing during encoding.

    Any ideas?
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  4. AviSynth:

    Code:
    AviSource("filename.avi")
    BilinearResize(720, 480) #compresses better
    or

    Code:
    AviSource("filename.avi")
    LanczosResize(720, 480) #sharper
    A 1920x1080 frame downsized with BilinearResize():


    And LanczosResize():


    Beyond that, encode 16:9 MPEG2 for DVD and be sure to use sufficient bitrate.
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  5. Member
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    Thank you, Jagabo I'll confess I have been avoiding AviSynth just because it looks a lot less user-friendly compared to a lot of the more popular, big name GUI programs, but I just tried the simple script you provided and it produced a better result than what I was getting using the encoder to resize.

    I'm a convert! LOL.
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  6. Congratulation on your first AVS script! It's definitely worth learning a little AviSynth. It's the most powerful and flexible video filtering tool there is.
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