Lanczos Resizing Query (Uncas?)

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  • Enchanter
    Old member
    • Feb 2002
    • 5417

    Lanczos Resizing Query (Uncas?)

    This is basically a follow-up on the discussion that Uncas and I had in one of the recent threads regarding the Lanczos resizer. I'm trying out the said plug-in and have got one question that I thought Uncas, or anyone else who has tried out the plug-in, can answer.

    The documentation stated a basic format as follows:
    LanczosResize(clip, int target_width, int target_height)

    The "int target_width" and "int target_height" are easy enough to figure out. I have not much clue on the "clip" part though. What is the applicable range of value? And what should I use, assuming I'm going for maximum quality and, in another case, 'alright' quality?

    I tried the following line and it, funnily, works:
    LanczosResize(640, 352)
    In this case, do you what value of c is being used?

    I have just started playing around with the resizer and will see what I can find later on. Cheers.
  • khp
    The Other
    • Nov 2001
    • 2161

    #2
    The Clip argument is for processing multiple source clips. But it can be omitted if you don't need it.

    example
    Code:
     
    a = AVISource("d:\clip1.avi")
    b = AVISource("d:\clip2.avi")
    LanczosResize(a,640, 352)
    LanczosResize(b,640, 352)
    return AlignedSplice(a,b)
    Donate your idle CPU time for something usefull.
    http://folding.stanford.edu/

    Comment

    • Enchanter
      Old member
      • Feb 2002
      • 5417

      #3
      So the c value has nothing to do with the scale of sharpness processing setting then? Excellent. Thanks, khp.

      Comment

      • khp
        The Other
        • Nov 2001
        • 2161

        #4
        Originally posted by Enchanter
        So the c value has nothing to do with the scale of sharpness processing setting then?
        No not at all, the Lanczos filter has no such options.
        Almost all avisynth filters support a clip argument in the same fashion.
        Donate your idle CPU time for something usefull.
        http://folding.stanford.edu/

        Comment

        • UncasMS
          Super Moderator
          • Nov 2001
          • 9047

          #5
          sorry, a little late here for me to answer

          all said and done


          did you do a first testrun?
          how did you like the quality?

          did you even try the combo: lanczos AND convolution?

          Comment

          • Enchanter
            Old member
            • Feb 2002
            • 5417

            #6
            As I previously put, I haven't done any extensive testing with the plug-in (I recently deleted all of the VOBs that I had, and am waiting for another DVD to rip). The only testing that I did was on a low-quality source, and there really is nothing to complain about the resize quality anyway. I will definitely give this resizer a go with the next DVD I'm working on.

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