ITK
6.0.0
Insight Toolkit
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#include <itkForwardFFTImageFilter.h>
Base class for 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 full 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 works only for real single-component input image types.
The output generated from a ForwardFFTImageFilter is in the dual space or frequency domain. Refer to FrequencyFFTLayoutImageRegionConstIteratorWithIndex for a description of the layout of frequencies generated after a forward FFT. Also see ITKImageFrequency for a set of filters requiring input images in the frequency domain.
Definition at line 65 of file itkForwardFFTImageFilter.h.
using itk::ForwardFFTImageFilter< TInputImage, TOutputImage >::ConstPointer = SmartPointer<const Self> |
Definition at line 84 of file itkForwardFFTImageFilter.h.
using itk::ForwardFFTImageFilter< TInputImage, TOutputImage >::InputImageType = TInputImage |
Standard class type aliases.
Definition at line 72 of file itkForwardFFTImageFilter.h.
using itk::ForwardFFTImageFilter< TInputImage, TOutputImage >::InputIndexType = typename InputImageType::IndexType |
Definition at line 74 of file itkForwardFFTImageFilter.h.
using itk::ForwardFFTImageFilter< TInputImage, TOutputImage >::InputPixelType = typename InputImageType::PixelType |
Definition at line 73 of file itkForwardFFTImageFilter.h.
using itk::ForwardFFTImageFilter< TInputImage, TOutputImage >::InputSizeType = typename InputImageType::SizeType |
Definition at line 75 of file itkForwardFFTImageFilter.h.
using itk::ForwardFFTImageFilter< TInputImage, TOutputImage >::OutputImageType = TOutputImage |
Definition at line 76 of file itkForwardFFTImageFilter.h.
using itk::ForwardFFTImageFilter< TInputImage, TOutputImage >::OutputIndexType = typename OutputImageType::IndexType |
Definition at line 78 of file itkForwardFFTImageFilter.h.
using itk::ForwardFFTImageFilter< TInputImage, TOutputImage >::OutputPixelType = typename OutputImageType::PixelType |
Definition at line 77 of file itkForwardFFTImageFilter.h.
using itk::ForwardFFTImageFilter< TInputImage, TOutputImage >::OutputSizeType = typename OutputIndexType::SizeType |
Definition at line 79 of file itkForwardFFTImageFilter.h.
using itk::ForwardFFTImageFilter< TInputImage, TOutputImage >::Pointer = SmartPointer<Self> |
Definition at line 83 of file itkForwardFFTImageFilter.h.
using itk::ForwardFFTImageFilter< TInputImage, TOutputImage >::Self = ForwardFFTImageFilter |
Definition at line 81 of file itkForwardFFTImageFilter.h.
using itk::ForwardFFTImageFilter< TInputImage, TOutputImage >::Superclass = ImageToImageFilter<InputImageType, OutputImageType> |
Definition at line 82 of file itkForwardFFTImageFilter.h.
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protecteddefault |
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overrideprotecteddefault |
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overrideprotectedvirtual |
This class produces the entire output.
Reimplemented from itk::ProcessObject.
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overrideprotectedvirtual |
This class requires the entire input.
Reimplemented from itk::ProcessObject.
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overridevirtual |
Reimplemented from itk::ProcessObject.
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virtual |
itk::ForwardFFTImageFilter< TInputImage, TOutputImage >::itkFactoryOnlyNewMacro | ( | Self | ) |
Customized object creation methods that support configuration-based selection of FFT implementation.
Default implementation is VnlFFT.