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Thread: Lanczos Resizing Query (Uncas?)

  1. #1
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    Default 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.

  2. #2
    The Other khp's Avatar
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    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)
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    So the c value has nothing to do with the scale of sharpness processing setting then? Excellent. Thanks, khp.

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    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.
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  5. #5
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    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?

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    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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