SoNagaoFilterProcessing2d Class Reference
[Smoothing And Denoising]

SoNagaoFilterProcessing2d engine More...

#include <ImageViz/Engines/ImageFiltering/SmoothingAndDenoising/SoNagaoFilterProcessing2d.h>

Inheritance diagram for SoNagaoFilterProcessing2d:

List of all members.

Public Types
enum	FilterType {   TSUJI = 0,   NAGAO7 = 1,   NAGAO9 = 2,   NAGMOD = 3 }
enum	FilterMethod {   VARIANCE = 0,   RANGE = 1 }
Public Member Functions
	SoNagaoFilterProcessing2d ()
Public Attributes
SoSFImageDataAdapter	inImage
SoSFEnum	filterType
SoSFEnum	filterMethod
SoImageVizEngineOutput < SoSFImageDataAdapter, SoImageDataAdapter * >	outImage

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Detailed Description

SoNagaoFilterProcessing2d engine

The SoNagaoFilterProcessing2d engine computes a mean neighbors value around a central pixel.

For an introduction to image filters, see section Images Filters.

This engine uses an adaptive 5x5 neighborhood geometry to compute a mean neighbors value around a central pixel. For each pixel, the used geometry is selected, among a predefined set, with respect to a minimum variance criterion. User can optionally switch this criterion to a minimum range criterion.

Four neighborhood geometry types are supported by this filter:

• The Tsuji-Tomita neighborhoods: a set of five 3x3 sub neighborhoods among the 5x5 main neighborhoods.
  
• The Nagao neighborhood with a set of nine 7 pixels sub neighborhoods among the 5x5 main neighborhoods:
  
• The Nagao neighborhood with a set of nine 9 pixels sub neighborhoods among the 5x5 main neighborhoods:
  
• The Nagmod neighborhood: a set of nine 3x3 sub neighborhoods among the 5x5 main neighborhoods
  

SEE ALSO

SoBilateralFilterProcessing, SoSigmaFilterProcessing, SoUnsharpMaskingProcessing.

FILE FORMAT/DEFAULT

NagaoFilterProcessing2d {

inImage	NULL
filterType	TSUJI
filterMethod	VARIANCE

}

Library references: nagaofilter

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Member Enumeration Documentation

enum SoNagaoFilterProcessing2d::FilterMethod

Enumerator:

VARIANCE	This option to use variance to compare data.
RANGE	This option to use range to compare data.

enum SoNagaoFilterProcessing2d::FilterType

Enumerator:

TSUJI	This option to use Tsuji algorithm.
NAGAO7	This option to use Nagao algorithm with neighborhood of size 7.
NAGAO9	This option to use Nagao algorithm with neighborhood of size 9.
NAGMOD	This option to use Nagmod algorithm.

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Constructor & Destructor Documentation

SoNagaoFilterProcessing2d::SoNagaoFilterProcessing2d

(

)

Constructor.

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Member Data Documentation

SoSFEnum SoNagaoFilterProcessing2d::filterMethod

Select the filter method.

Use enum FilterMethod. Default is VARIANCE

SoSFEnum SoNagaoFilterProcessing2d::filterType

Select the filter type.

Use enum FilterType. Default is TSUJI

SoSFImageDataAdapter SoNagaoFilterProcessing2d::inImage

The input image.

Default value is NULL. Supported types include: grayscale binary label color image.

SoImageVizEngineOutput<SoSFImageDataAdapter,SoImageDataAdapter*> SoNagaoFilterProcessing2d::outImage

The output image.

Default value is NULL. Supported types include: grayscale binary label color image.

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The documentation for this class was generated from the following file:

• ImageViz/Engines/ImageFiltering/SmoothingAndDenoising/SoNagaoFilterProcessing2d.h