Histograms in RGB & CMY: Difference between revisions

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{{FilterCat|External_filters|Adjustment_filters|Levels and Chroma}}
{{FilterCat|External_filters|Adjustment_filters|Levels and Chroma}}
{{Filter2
{{Filter3
|-Vit-
|-Vit-
|2012/04/20
|2012/04/20
|[http://avisynth.nl/images/Histograms_in_RGB_%26_CMY.avsi Histograms in RGB & CMY.avsi]
|[http://avisynth.nl/images/Histograms_in_RGB_%26_CMY.avsi Histograms in RGB & CMY.avsi]
|Levels and Chroma
|Levels and Chroma
|}}
|
|6=[http://forum.doom9.org/showthread.php?p=1570968#post1570968 Doom9 Thread]}}
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== Description ==
== Description ==
:A script to display RGB and CMY levels and a RGB parade color scope.
:A script to display RGB and CMY levels and a RGB parade color scope.  
:{{Template:FuncDef|HistogramRGBLevels}} / {{Template:FuncDef|HistogramCMYLevels}} are like [[Histogram#Levels_mode|Histogram("levels")]] but for RGB and CMY instead of YUV.
:{{Template:FuncDef|HistogramRGBParade}} presents a fairly standard RGB parade color scope. It uses [[Histogram#Classic_mode|Histogram("classic")]] for each RGB component, but applied to columns rather than rows.  
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== Requirements ==
== Requirements ==

Revision as of 12:45, 7 September 2014

Abstract
Author -Vit-
Version 2012/04/20
Download Histograms in RGB & CMY.avsi
Category Levels and Chroma
License
Discussion Doom9 Thread


Description

A script to display RGB and CMY levels and a RGB parade color scope.


Requirements

- AviSynth 2.5.8 or later
- Supported color formats: RGB24, RGB32, Y8, YUY2, YV411, YV12, YV16, YV24


Syntax and Parameters


HistogramRGBLevels / HistogramCMYLevels

These two functions are like Histogram("levels") but for RGB and CMY instead of YUV.

HistogramRGBLevels (clip input, bool "range", float "factor" )
HistogramCMYLevels (clip input, bool "range", float "factor" )


clip  input =
Input clip.


bool  range = true
Set range=false to hide the 16-235 range (a left-over from the Y histogram used to build these)


float  factor = 100.0
The "factor" option specifies how the graphs are displayed. It is specified as percentage of the total population.
Range: 0.0 to 100.0



HistogramRGBParade

Presents a fairly standard RGB parade color scope. It uses Histogram("classic") for each RGB component, but applied to columns rather than rows.

HistogramRGBParade (clip input, float "width" )


clip  input =
Input clip.


float  width = 0.25
Controls the width of the histogram display (height will always be 256 pixels).


Examples

  • HistogramRGBLevels with default settings:
AviSource("blah.avi")
HistogramRGBLevels(range=true, factor=100.0)



  • HistogramCMYLevels with default settings:
AviSource("blah.avi")
HistogramCMYLevels(range=true, factor=100.0)



  • HistogramRGBParade with default settings:
AviSource("blah.avi")
HistogramRGBParade(width=0.25)


Changelog

Version         Date            Changes

2012/04/20      2012/04/20      - Initial release





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