com.openinventor.imageviz.engines.imagefiltering.frequencydomain

Class SoComplexFFTInverseProcessing

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.frequencydomain.SoComplexFFTInverseProcessing

All Implemented Interfaces:

SafeDisposable

public class SoComplexFFTInverseProcessing
extends SoImageVizEngine

SoComplexFFTInverseProcessing engine The SoComplexFFTInverseProcessing engine computes the fast of Fourier inverse transform.

For an introduction, see:

• section Frequency
• Introduction for FFT

The SoComplexFFTInverseProcessing engine computes the inverse FFT of an image. The result is two floating point images, respectively the real and imaginary parts of the complex inverse Fourier Transform.

Remarks

• A classical operation is to first filter the spectrum of an image (especially to suppress high frequencies usually associated with noise), and then reconstruct the input image using SoComplexFFTInverseProcessing with the filtered spectrum and unchanged phase as input images.
• Be aware that images are centered in the upper left corner. Use the SoComplexCenteredFFTInverseProcessing engine to visualize a centered image.
• The imaginary output image of SoComplexFFTInverseProcessing is null.

See also:

SoComplexFFTProcessing, SoComplexCenteredFFTInverseProcessing.

File format/default:

ComplexFFTInverseProcessing {

computeMode	MODE_AUTO
inRealImage	NULL
inImaginaryImage	NULL

}

Library references: fftinv

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
SoSFEnum<SoImageVizEngine.ComputeModes>	computeMode Select the compute Mode (2D or 3D or AUTO) .
SoSFImageDataAdapter	inImaginaryImage The input imaginary part image.
SoSFImageDataAdapter	inRealImage The input real part image.
SoImageVizEngineOutput<SoSFImageDataAdapter,SoImageDataAdapter>	outImaginaryImage The output imaginary part image.
SoImageVizEngineOutput<SoSFImageDataAdapter,SoImageDataAdapter>	outRealImage The output real part 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
SoComplexFFTInverseProcessing() 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

computeMode

public final SoSFEnum<SoImageVizEngine.ComputeModes> computeMode

Select the compute Mode (2D or 3D or AUTO) . Default is MODE_AUTO

inRealImage

public final SoSFImageDataAdapter inRealImage

The input real part image. Default value is NULL. Supported types include: grayscale color image.

inImaginaryImage

public final SoSFImageDataAdapter inImaginaryImage

The input imaginary part image. Default value is NULL. Supported types include: grayscale color image.

outRealImage

public final SoImageVizEngineOutput<SoSFImageDataAdapter,SoImageDataAdapter> outRealImage

The output real part image. Default value is NULL. Supported types include: grayscale color image.

outImaginaryImage

public final SoImageVizEngineOutput<SoSFImageDataAdapter,SoImageDataAdapter> outImaginaryImage

The output imaginary part image. Default value is NULL. Supported types include: grayscale color image.

Constructor Detail

SoComplexFFTInverseProcessing

public SoComplexFFTInverseProcessing()

Constructor.