CC

Abstract
Author	chiyo-clone
Version	2004/05/22
Download	CC
Category	Rainbow & Dot Crawl Removal
Requirements	YUY2 YV12
License	GPLv2
Discussion

Description

Noise reduction filter which reduces cross-color (rainbows) and cross-luminance (dot crawl) artifacts. It works by temporally blending only static parts of a frame.

Requirements:

- AviSynth 2.5.8 or later

- Supported color formats: YUY2, YV12

Syntax and Parameters

cc (clip, int "y1", int "y2", int "c1", int "c2", bool "interlaced", float "yc", bool "ylimit", bool "climit")

int  y1 = 8

int  y2 = 8

Range: 0 - 256

y1 and y2 are both luma thresholds that control how much cross-luminance is reduced. Higher values increase strength.

int  c1 = 12

int  c2 = 112

Range: 0 - 256

c1 and c2 are both chroma thresholds that control how much cross-color is reduced. Higher values increase strength.

The value of c1 should always be less than c2. For c2 it's recommended to use higher values.

bool  interlaced = true

When set to false, input will be treated as progressive. This only applies to YV12.

float  yc = 2.0

yc is the value that represents how much cross-luminance the chrominance signal has introduced.

bool  ylimit = true

Luma limiter

bool  climit = true

Chroma limiter

Examples

AviSource("Blah.avi")
cc()

Changelog

  2004/05/22:
     - Optimize limiter
     - Add chroma limiter "climit"

  2004/03/15:
     - Add limiter "ylimit"
     - Add parameter "yc"

  2004/03/06:
     - Add parameter "interlace"
     - YV12 support
     - AviSynth 2.5 support

  2003/12/17:
     - Add parameters y1,y2,c1,c2

  2003/10/13:
     - Initial release

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