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| #
| | [[Category:Talk]] |
| # AWarpSharpDering by Kurt Bernhard Pruenner
| | @Wilbert |
| #
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| # Tries to clean up slight ringing around edges by heavily AWarpSharp-ing the
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| # image and then applying it only to the areas where the difference is small
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| # enough so detail isn't destroyed.
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| #
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| # Currently only processes the chroma, as that's what sharpeners that cause the
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| # ringing in the first place operate on.
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| #
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| # depth ........ Depth of the AWarpSharpening
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| #
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| # diffthresh ... differences between the source and the sharpened clip larger
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| # than this will not be touched; the smaller the difference the
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| # more of the sharpened clip will be used
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| #
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| # lumathresh ... since the ringing is mostly notable in bright places this
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| # threshold will prevent dark areas from being hit too hard, so
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| # for instance linework will be preserved
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| #
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| # debug ........ 0 - normal operation
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| # 1 - return sharpened clip
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| # 2 - return diffthresh mask
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| # 3 - return lumathresh mask
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| # 4 - return combined mask
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| # 5 - return source (for comparison)
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| #
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| function AWarpSharpDering(clip source, float "depth",int "diffthresh",int "lumathresh",int "debug")
| | I uploaded an updated [[aWarpSharpDering]] script. The original script used the ancient MaskTools so it can absolutely be considered deprecated. - [[User:Reel.Deal|Reel.Deal]] 13:58, 15 June 2015 (CEST) |
| {
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| depth=Default(depth,32.0)
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| diffthresh=Default(diffthresh,8)
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| lumathresh=Default(lumathresh,32)
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| debug=Default(debug,0)
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|
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| sharpened=source.AWarpSharp(depth=depth,blurlevel=2,cm=0,bm=0)
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| | |
| # absolute differences mask
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| diffmask=YV12LUTxy(source,sharpened,yexpr="x y - x y > *",Y=3,U=1,V=1).Levels(0,0.5,diffthresh,255,0,coring=false)
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| # source-luma mask
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| lumamask=source.Deflate(Y=3,U=1,V=1).Levels(16,0.5,16+lumathresh,0,255,coring=false)
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| | |
| # both masks multiplied
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| mask=YV12LUTxy(lumamask,diffmask,yexpr="x y * 255 /",Y=3,U=1,V=1).Deflate()
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|
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| result=MergeChroma(MaskedMerge(source,sharpened,mask,Y=3,U=1,V=1),source)
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|
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| result=debug != 1 ? result : sharpened
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| result=debug != 2 ? result : diffmask.Levels(0,1.0,255,16,240,coring=false).MergeChroma(source.BlankClip(color_yuv=$808080))
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| result=debug != 3 ? result : lumamask.Levels(0,1.0,255,16,240,coring=false).MergeChroma(source.BlankClip(color_yuv=$808080))
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| result=debug != 4 ? result : mask.Levels(0,1.0,255,16,240,coring=false).MergeChroma(source.BlankClip(color_yuv=$808080))
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| result=debug != 5 ? result : source
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|
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| return result
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| }
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@Wilbert
I uploaded an updated aWarpSharpDering script. The original script used the ancient MaskTools so it can absolutely be considered deprecated. - Reel.Deal 13:58, 15 June 2015 (CEST)
