SoDecorrelationStretchProcessing2d Class Reference
[Color Transforms]

SoDecorrelationStretchProcessing2d engine More...

#include <ImageViz/Engines/ImageFiltering/ColorTransforms/SoDecorrelationStretchProcessing2d.h>

Inheritance diagram for SoDecorrelationStretchProcessing2d:

List of all members.

Public Member Functions
	SoDecorrelationStretchProcessing2d ()
Public Attributes
SoSFImageDataAdapter	inColorImage
SoImageVizEngineOutput < SoSFImageDataAdapter, SoImageDataAdapter * >	outColorImage

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Detailed Description

SoDecorrelationStretchProcessing2d engine

The SoDecorrelationStretchProcessing2d engine enhances the color differences found in a color image.

This engine maximizes (stretches) the difference between different bands of data, by trying to remove the inter-bands correlation found in the input pixels. By using Eigen vectors and covariance matrix, the data is "rotated" into a new space where the values are then maximized, and returned to the original space.

The transformation matrix T applied at each pixel is composed from a rotation matrix R and a stretching vector :

where denotes the matrix of eigenvectors and is formed by taking the reciprocal of the square root of each element in the eigenvalue vector and by multiplying it by the desired standard deviation for the output image bands.

The SoDecorrelationStretchProcessing2d is a process that is usually used to enhance the color differences found in a color image. The input image may reach the two following conditions:

• In one band, at least one pixel value has to be different of the other pixels values,
• The value at each pixel in one band cannot be a linear combination of the pixel values of the other bands.

SEE ALSO

SoColorAntialiasingProcessing2d.

FILE FORMAT/DEFAULT

DecorrelationStretchProcessing2d {

inColorImage

NULL

}

Library references: decorrelstrech

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Constructor & Destructor Documentation

SoDecorrelationStretchProcessing2d::SoDecorrelationStretchProcessing2d

(

)

Constructor.

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Member Data Documentation

SoSFImageDataAdapter SoDecorrelationStretchProcessing2d::inColorImage

The input color image.

Default value is NULL. Supported types include: color image.

SoImageVizEngineOutput<SoSFImageDataAdapter,SoImageDataAdapter*> SoDecorrelationStretchProcessing2d::outColorImage

The output color 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/ColorTransforms/SoDecorrelationStretchProcessing2d.h