Class RealToHalfHermitianForwardFFTImageFilter

java.lang.Object
org.itk.simple.ProcessObject
org.itk.simple.ImageFilter
org.itk.simple.RealToHalfHermitianForwardFFTImageFilter

public class RealToHalfHermitianForwardFFTImageFilter extends ImageFilter
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
  • Constructor Details

    • RealToHalfHermitianForwardFFTImageFilter

      protected RealToHalfHermitianForwardFFTImageFilter(long cPtr, boolean cMemoryOwn)
    • RealToHalfHermitianForwardFFTImageFilter

      public RealToHalfHermitianForwardFFTImageFilter()
      itk::simple::RealToHalfHermitianForwardFFTImageFilter::RealToHalfHermitianForwardFFTImageFilter() Default Constructor that takes no arguments and initializes default parameters
  • Method Details

    • getCPtr

      protected static long getCPtr(RealToHalfHermitianForwardFFTImageFilter obj)
    • swigRelease

      protected static long swigRelease(RealToHalfHermitianForwardFFTImageFilter obj)
    • finalize

      protected void finalize()
      Overrides:
      finalize in class ImageFilter
    • delete

      public void delete()
      virtual itk::simple::RealToHalfHermitianForwardFFTImageFilter::~RealToHalfHermitianForwardFFTImageFilter() Destructor
      Overrides:
      delete in class ImageFilter
    • getName

      public String getName()
      std::string itk::simple::RealToHalfHermitianForwardFFTImageFilter::GetName() const Name of this class
      Overrides:
      getName in class ProcessObject
    • toString

      public String toString()
      std::string itk::simple::RealToHalfHermitianForwardFFTImageFilter::ToString() const Print ourselves out
      Overrides:
      toString in class ProcessObject
    • execute

      public Image execute(Image image1)
      Image itk::simple::RealToHalfHermitianForwardFFTImageFilter::Execute(const Image &image1) Execute the filter on the input image