MfRainbow

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Ok, cause I couldn't find a working 2.5 version of AntiBlink, I decided to make my own ^^'.
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{{FilterCat|External_filters|Restoration_filters|Rainbow & Dot Crawl Removal}}
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{{Filter
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| {{Author/mf}}
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| v0.31
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| [http://web.archive.org/web/20090212071718/http://mf.creations.nl/avs/functions/mfRainbow-v0.31.avs mfRainbow]
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| Rainbow & Dot Crawl Removal
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|
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* YV12
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|
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|}}
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<br>
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== Description ==
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:Derainbows in areas of high Y, U and V frequencies, which fluctuate heavily.
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<br>
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===== Requirements: =====
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:- AviSynth 2.5.8 or later
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:- Supported color formats: [[YV12]]
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:- [[FAQ_different_types_content#How_do_I_recognize_progressive.2C_interlaced.2C_telecined.2C_hybrid_and_blended_content.3F|Progressive]] input only
  
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# mfRainbow by mf
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===== Required Filters: =====
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# Derainbows according to the same principle as AntiFlicker.
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:*[[MaskTools]] v1.5.8
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# Definitely slower, but possibly (untested) higher quality.
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:* WarpSharp v2008
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#
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<br>
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# I don't claim copyright but I ask you to treat my script
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== Syntax and Parameters ==
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# fairly.
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:{{Template:FuncDef|mfRainbow(clip input, int "strength", int "scd")}}
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#
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<br>
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# Happy slow encoding ^^.
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::{{Par|strength|int|255}}
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#
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:::Range: 0 - 255
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::::Processing strength.
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function mfRainbow(clip input, string "mode", float "clipstren", int "strength", bool "post")
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<br>
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{
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::{{Par|scd|int|10}}
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    mode      = Default(mode, "slowest") # processing speed, slow-slower-slowest
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:::Scene change detection for [[Soften|TemporalSoften]]. Good values are between 5 and 30.
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    strength = Default(strength, 255)  # processing strength, 0-255
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<br>
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    clipstren = Default(clipstren, 5.0)  # value clipping strength, 0.0-10.0
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== Examples ==
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    post      = Default(post, true)      # spatial postprocessing on/off
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  [[AviSource]]("Blah.avi")
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  mfRainbow()
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    inputrgb = input.ConvertToRGB32()
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<br>
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== Changelog ==
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    edgemask = input.EdgeMask(0, "sobel").Inflate().GreyScale().
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  [http://web.archive.org/web/20090212071718/http://mf.creations.nl/avs/functions/mfRainbow-v0.31.avs v0.31:]
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      \ Levels(0, clipstren, 255, 0, 255).ConvertToRGB32()
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       - Tweakable scenechange detection for tough sources.<br>
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  [http://web.archive.org/web/20090212071718/http://mf.creations.nl/avs/functions/mfRainbow-v0.3.avs v0.3:]
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    derainbow = (mode == "slow") ? input.Deen("a3d",4,0,40,50) :  
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       - Temporal fluctuation mask building!<br>
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      \  (mode == "slower") ? input.Deen("a3d",4,0,20,50).Deen("a3d",4,0,20,50) :  
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  [http://web.archive.org/web/20090212071718/http://mf.creations.nl/avs/functions/mfRainbow-v0.2.avs v.02:]
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       \  (mode == "slowest") ? input.Deen("a3d",4,0,15,50).Deen("a3d",4,0,15,50).
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       - Added U and V mask-building, overhauled Deen settings, changed to YV12.<br>
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       \  Deen("a3d",4,0,15,50).Deen("a3d",4,0,15,50) : Assert(false, "available modes:  
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  [http://web.archive.org/web/20090212071718/http://mf.creations.nl/avs/functions/mfRainbow-0.1.avs v0.1:]
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       \  slow, slower, slowest")
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      - Initial release
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<br>
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    maskedrainbow = Mask(derainbow.ConvertToRGB32(), edgemask)
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    edgerainbow = Layer(inputrgb, maskedrainbow, "add", strength)
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    semifinal = input.MergeChroma(edgerainbow.ConvertToYV12())
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    blah = semifinal.MSmooth() # cause of a weird argument error
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    final = semifinal.MergeChroma(blah)
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    return post ? final : semifinal
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  }
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Parameters:
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== Links ==
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*[http://forum.doom9.org/showthread.php?p=321319#post321319 Doom9 Forum] - mfRainbow v0.1 discussion.
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type - name - description - range - default
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*[http://forum.doom9.org/showthread.php?t=67578 Doom9 Forum] - mfRainbow v0.2 - v0.31 discussion.
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<br>
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string mode - processing speed (and quality) - slow/slower/slowest - slowest
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<br>
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<br>
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int strength - processing strength - 0-255 - 255
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-----------------------------------------------
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'''Back to [[External_filters#Rainbow_.26_Dot_Crawl_Removal|External Filters]] &larr;'''
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float clipstren - value clipping strength - 0.0-10.0 - 5.0
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-----------------------------------------------
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bool post - spatial postprocessing - true/false - true
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"Slow" mode might cause chroma ghosting on edges. Slowest is the safest, but might not be as effective as slow.
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Explanation of clipstren: this works like value boosts in mfToon, it's the gamma correction of the mask ^^'. Lower values give more variation, but less strength.
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You need [[Deen]], [[MaskTools]] and [[MSmooth]].
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Like before (and probably ever again), I don't check colorspaces cause I'm too lazy, and my function always outputs YV12. Who needs another colorspace anyway. I'm still kinda sad about the fact that [[Layer]] and [[Mask]] don't work in YUV (cause of the lack of an AYUV colorspace), so alas I have to do 2 colorspace conversions, namely to RGB and back. (Note Wilbert: note that there is a Layer/Mask equivalent working in YUV nowadays, so the script could be adjusted without those colorspace conversions.) The luma luckily doesn't have to be touched (and I do [[MergeChroma]] to ensure that), so that minimizes conversion errors.
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Please test if this is any better or worse than existing derainbowers. A discussion can be found [http://forum.doom9.org/showthread.php?s=&postid=321859#post321859 here].
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[[Category:Shared functions]]
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Revision as of 04:12, 26 November 2013

Abstract
Author mf
Version v0.31
Download mfRainbow
Category Rainbow & Dot Crawl Removal
Requirements
  • YV12
License
Discussion


Contents

Description

Derainbows in areas of high Y, U and V frequencies, which fluctuate heavily.


Requirements:
- AviSynth 2.5.8 or later
- Supported color formats: YV12
- Progressive input only
Required Filters:


Syntax and Parameters

mfRainbow(clip input, int "strength", int "scd")


strength int = 255
Range: 0 - 255
Processing strength.


scd int = 10
Scene change detection for TemporalSoften. Good values are between 5 and 30.


Examples 

AviSource("Blah.avi")
mfRainbow()


Changelog 

  v0.31:
     - Tweakable scenechange detection for tough sources.

  v0.3:
     - Temporal fluctuation mask building!

  v.02:
     - Added U and V mask-building, overhauled Deen settings, changed to YV12.

  v0.1:
     - Initial release


Links




Back to External Filters ←

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