VerticalCleaner

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| Spatial Denoisers
 
| Spatial Denoisers
 
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* YUY2
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* [[YUY2]]
* YV12
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* [[YV12]]
 
| GPL
 
| GPL
 
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:::* VerticalCleanerSSE3.dll = dynamically linked SSE3 version<br>
 
:::* VerticalCleanerSSE3.dll = dynamically linked SSE3 version<br>
 
===== Requirements =====
 
===== Requirements =====
:* [[YV12]]
 
 
:* [[YUY2]]
 
:* [[YUY2]]
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:* [[YV12]]
 
<br>
 
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Revision as of 05:15, 8 November 2013

Abstract
Author Kassandro
Version V0.1
Download VericalCleaner
Category Spatial Denoisers
Requirements
License GPL
Discussion


Contents

Description

A fast vertical median plugin.
There are 4 version of the plugin:
  • VerticalCleaner.dll = dynamically linked SSE version
  • VerticalCleanerS.dll = statically linked SSE version
  • VerticalCleanerSSE2.dll = dynamically linked SSE2 version
  • VerticalCleanerSSE3.dll = dynamically linked SSE3 version
Requirements


Syntax and Parameters

VerticalCleaner(clip "input", int "mode", bool "planar")


mode int = 2
Modes:
  • 0 : copy the frame
  • 1 : vertical median
  • 2 : relaxed vertical median (preserves more detail)
Description of mode 2:
Let b1, b2, c, t1, t2 be a vertical sequence of pixels. The center pixel c is to be modified in terms of the 4 neighbours.
For simplicity let us assume that b2 <= t1. Then in mode 1, c is clipped with respect to b2 and t1, i.e. c is replaced by max(b2, min(c, t1)).
In mode 2 the clipping intervall is widened, i.e. mode 2 is more conservative than mode 1.
If b2 > b1 and t1 > t2, then c is replaced by max(b2, min(c, max(t1,d1) )), where d1 = min(b2 + (b2 - b1), t1 + (t1 - t2)).
In other words, only if the gradient towards the center is positive on both clipping ends, then the upper clipping bound may be larger.
If b2 < b1 and t1 < t2, then c is replaced by max(min(b2, d2), min(c, t1)), where d2 = max(b2 - (b1 - b2), t1 - (t2 - t1)).
In other words, only if the gradient towards the center is negative on both clipping ends, then the lower clipping bound may be smaller.
In mode 1 the top and the bottom line are always left unchanged. In mode 2 the two first and the two last lines are always left unchanged.


planar bool = false
See SSETools Interleaved2Planar.


Examples

AviSource("Blah.avi")
VerticalCleaner()


Changelog

2008-02-28 :
 - Initial release


Links

- VideoProcessing Forum - Parameter description by Kassandro.
- VideoProcessing Forum - Mode 2 explanation by Kassandro.

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