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  1. Member spiritgumm's Avatar
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    Have progressive PAL video (which I am converting to ntsc) but ALL edges (and text) have combing or similar artifacting. Tried vinverse but didnt do anything - if it needs masktools2, I could not find a compatible plugin for Avisynth 2.5. Sample uploaded shows combing on eye glass frames.
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  2. There is no combing. There's aliasing from poor deinterlacing though. Is that what you want to fix?
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  3. Member spiritgumm's Avatar
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    If that's what you see around the eye glass frame, then yes. I would have thought they used a film source, not interlaced video that needed deinterlacing before converting to PAL. Could the aliasing be caused by encoding progressive video as interlaced by mistake?
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  4. Originally Posted by spiritgumm View Post
    If that's what you see around the eye glass frame, then yes.
    To reduce the aliasing artifacts try:

    Code:
    SeparateFields().SelectEven().Santiag().nnedi3(dh=true)
    Originally Posted by spiritgumm View Post
    Could the aliasing be caused by encoding progressive video as interlaced by mistake?
    No. Someone deinteracled before encoding.
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  5. Member spiritgumm's Avatar
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    Thanks, the script is an improvement (cleans up the glass frames), although you lose some sharpness and aliasing is still noticeable in the rest of the video - might not be so apparent in that dark sample. I upped strength=3, still aliasing with diminishing sharpness. A brighter sample of the original might demonstrate how bad it is.
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  6. You can't clean up all the aliasing and have a sharp picture. Half the picture is missing.
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  7. Member spiritgumm's Avatar
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    thanks for the info. Any tweaking of these filters, or another filter, you can suggest?
    I believe my Santiag is older version still compatible with Avy2.58. Would upgrading to Avy2.6 and newer Santiag (which requires masktools2) improve results?
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  8. Originally Posted by spiritgumm View Post
    I believe my Santiag is older version still compatible with Avy2.58. Would upgrading to Avy2.6 and newer Santiag (which requires masktools2) improve results?
    I don't know. I'm using Santiag version 1.6. Attached is the result I get, for comparison.
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  9. Member spiritgumm's Avatar
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    Can you do the 2nd sample since first is too dark to evaluate beyond the glass frames?
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  10. Originally Posted by spiritgumm View Post
    Can you do the 2nd sample since first is too dark to evaluate beyond the glass frames?
    Here's the second clip, same script.
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  11. Member spiritgumm's Avatar
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    I found an earlier thread I started with the same request but for a b&w movie. The method suggested using QTGMC( Preset="Slower", InputType=2, ProgSADMask=2.0 ) works alot better to remove aliasing and keep it sharp, although abit late for my purposes. https://forum.videohelp.com/threads/381262-Fixing-aliasing-combing-in-PAL-progressive-...lp#post2468172
    Anyway, I have another progressive PAL b&w movie and thought it would work well by adjusting the mask value, but I'm having other problems.
    First, it's smoothing out too much detail. I read the wiki but I'm not sure how to back that off.
    Parts of background look wavy.
    There's a rain scene that looks jittery.
    I've tried tweaking the filter but I'm not having much luck getting it all right, so perhaps a smarter person can advise.
    I'm attaching a compilation clip of 3 scenes. After filtering, the ceiling curtain in first shot gets wavy, and rain scene gets jittery. 3rd scene provides good example of aliasing (top of doorway behind man).
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