Package org.itk.simple
Class RealToHalfHermitianForwardFFTImageFilter
java.lang.Object
org.itk.simple.ProcessObject
org.itk.simple.ImageFilter
org.itk.simple.RealToHalfHermitianForwardFFTImageFilter
Base class for specialized real-to-complex forward Fast Fourier Transform .
This is a base class for the "forward" or "direct" discrete
Fourier Transform . This is an abstract base class: the actual implementation is
provided by the best child class available on the system when the
object is created via the object factory system.
This class transforms a real input image into its complex Fourier
transform. The Fourier transform of a real input image has Hermitian
symmetry: $ f(\\mathbf{x}) = f^*(-\\mathbf{x}) $ . That is, when the result of the transform is split in half along
the X-dimension, the values in the second half of the transform are
the complex conjugates of values in the first half reflected about the
center of the image in each dimension. This filter takes advantage of
the Hermitian symmetry property and reduces the size of the output in
the first dimension to N/2+1, where N is the size of the input image
in that dimension and the division by 2 is rounded down.
See:
HalfHermitianToRealInverseFFTImageFilter
ForwardFFTImageFilter
itk::simple::RealToHalfHermitianForwardFFT for the procedural interface
itk::RealToHalfHermitianForwardFFTImageFilter for the Doxygen on the original ITK class.
C++ includes: sitkRealToHalfHermitianForwardFFTImageFilter.h
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Field Summary
Fields inherited from class org.itk.simple.ProcessObject
swigCMemOwn
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Constructor Summary
ConstructorsModifierConstructorDescriptionitk::simple::RealToHalfHermitianForwardFFTImageFilter::RealToHalfHermitianForwardFFTImageFilter() Default Constructor that takes no arguments and initializes default parametersprotected
RealToHalfHermitianForwardFFTImageFilter
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Method Summary
Modifier and TypeMethodDescriptionvoid
delete()
virtual itk::simple::RealToHalfHermitianForwardFFTImageFilter::~RealToHalfHermitianForwardFFTImageFilter() DestructorImage itk::simple::RealToHalfHermitianForwardFFTImageFilter::Execute(const Image &image1) Execute the filter on the input imageprotected void
finalize()
protected static long
getName()
std::string itk::simple::RealToHalfHermitianForwardFFTImageFilter::GetName() const Name of this classprotected static long
toString()
std::string itk::simple::RealToHalfHermitianForwardFFTImageFilter::ToString() const Print ourselves outMethods inherited from class org.itk.simple.ImageFilter
getCPtr, swigRelease
Methods inherited from class org.itk.simple.ProcessObject
abort, addCommand, debugOff, debugOn, getCPtr, getDebug, getGlobalDefaultCoordinateTolerance, getGlobalDefaultDebug, getGlobalDefaultDirectionTolerance, getGlobalDefaultNumberOfThreads, getGlobalDefaultThreader, getGlobalWarningDisplay, getNumberOfThreads, getNumberOfWorkUnits, getProgress, globalDefaultDebugOff, globalDefaultDebugOn, globalWarningDisplayOff, globalWarningDisplayOn, hasCommand, removeAllCommands, setDebug, setGlobalDefaultCoordinateTolerance, setGlobalDefaultDebug, setGlobalDefaultDirectionTolerance, setGlobalDefaultNumberOfThreads, setGlobalDefaultThreader, setGlobalWarningDisplay, setNumberOfThreads, setNumberOfWorkUnits, swigRelease
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Constructor Details
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RealToHalfHermitianForwardFFTImageFilter
protected RealToHalfHermitianForwardFFTImageFilter(long cPtr, boolean cMemoryOwn) -
RealToHalfHermitianForwardFFTImageFilter
public RealToHalfHermitianForwardFFTImageFilter()itk::simple::RealToHalfHermitianForwardFFTImageFilter::RealToHalfHermitianForwardFFTImageFilter() Default Constructor that takes no arguments and initializes default parameters
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Method Details
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getCPtr
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swigRelease
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finalize
protected void finalize()- Overrides:
finalize
in classImageFilter
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delete
public void delete()virtual itk::simple::RealToHalfHermitianForwardFFTImageFilter::~RealToHalfHermitianForwardFFTImageFilter() Destructor- Overrides:
delete
in classImageFilter
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getName
std::string itk::simple::RealToHalfHermitianForwardFFTImageFilter::GetName() const Name of this class- Overrides:
getName
in classProcessObject
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toString
std::string itk::simple::RealToHalfHermitianForwardFFTImageFilter::ToString() const Print ourselves out- Overrides:
toString
in classProcessObject
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execute
Image itk::simple::RealToHalfHermitianForwardFFTImageFilter::Execute(const Image &image1) Execute the filter on the input image
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