com.openinventor.imageviz.engines.imagefiltering.colortransforms

Class SoDecorrelationStretchProcessing2d

java.lang.Object

com.openinventor.inventor.Inventor

com.openinventor.inventor.misc.SoBase

com.openinventor.inventor.fields.SoFieldContainer

com.openinventor.inventor.engines.SoEngine

com.openinventor.imageviz.engines.SoImageVizEngine

com.openinventor.imageviz.engines.imagefiltering.colortransforms.SoDecorrelationStretchProcessing2d

All Implemented Interfaces:

SafeDisposable

public class SoDecorrelationStretchProcessing2d
extends SoImageVizEngine

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

Nested Class Summary

Nested classes/interfaces inherited from class com.openinventor.imageviz.engines.SoImageVizEngine

SoImageVizEngine.ComputeModes, SoImageVizEngine.EventArg, SoImageVizEngine.Neighborhood3ds

Nested classes/interfaces inherited from class com.openinventor.inventor.Inventor

Inventor.ConstructorCommand

Field Summary

Fields

Modifier and Type	Field and Description
SoSFImageDataAdapter	inColorImage The input color image.
SoImageVizEngineOutput<SoSFImageDataAdapter,SoImageDataAdapter>	outColorImage The output color image.

Fields inherited from class com.openinventor.imageviz.engines.SoImageVizEngine

CONNECTIVITY_18, CONNECTIVITY_26, CONNECTIVITY_6, MODE_2D, MODE_3D, MODE_AUTO, onBegin, onEnd, onProgress

Fields inherited from class com.openinventor.inventor.Inventor

VERBOSE_LEVEL, ZeroHandle

Constructor Summary

Constructors

Constructor and Description
SoDecorrelationStretchProcessing2d() Constructor.

Method Summary

Methods inherited from class com.openinventor.imageviz.engines.SoImageVizEngine

abortEvaluate, isEvaluating, startEvaluate, waitEvaluate

Methods inherited from class com.openinventor.inventor.engines.SoEngine

copy, getByName, getOutput, getOutputName

Methods inherited from class com.openinventor.inventor.fields.SoFieldContainer

copyFieldValues, copyFieldValues, enableNotify, fieldsAreEqual, get, getAllFields, getEventIn, getEventOut, getField, getFieldName, hasDefaultValues, isNotifyEnabled, set, setToDefaults

Methods inherited from class com.openinventor.inventor.misc.SoBase

dispose, getEXTERNPROTO, getName, getPROTO, isDisposable, isSynchronizable, setName, setSynchronizable, touch

Methods inherited from class com.openinventor.inventor.Inventor

getAddress, getNativeResourceHandle, startInternalThreads, stopInternalThreads

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

inColorImage

public final SoSFImageDataAdapter inColorImage

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

outColorImage

public final SoImageVizEngineOutput<SoSFImageDataAdapter,SoImageDataAdapter> outColorImage

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

Constructor Detail

SoDecorrelationStretchProcessing2d

public SoDecorrelationStretchProcessing2d()

Constructor.