Convolve a given image with an arbitrary image kernel using multiplication in the Fourier domain. More...

#include <itkFFTConvolutionImageFilter.h>

Inheritance diagram for itk::FFTConvolutionImageFilter< TInputImage, TKernelImage, TOutputImage, TInternalPrecision >:

Collaboration diagram for itk::FFTConvolutionImageFilter< TInputImage, TKernelImage, TOutputImage, TInternalPrecision >:

List of all members.

Public Types
typedef Superclass::BoundaryConditionPointerType	BoundaryConditionPointerType
typedef Superclass::BoundaryConditionType	BoundaryConditionType
typedef SmartPointer< const Self >	ConstPointer
typedef TInputImage	InputImageType
typedef InputImageType::IndexType	InputIndexType
typedef InputImageType::PixelType	InputPixelType
typedef InputImageType::RegionType	InputRegionType
typedef InputImageType::SizeType	InputSizeType
typedef InternalComplexImageType::Pointer	InternalComplexImagePointerType
typedef Image < InternalComplexType, TInputImage::ImageDimension >	InternalComplexImageType
typedef std::complex < TInternalPrecision >	InternalComplexType
typedef InternalImageType::Pointer	InternalImagePointerType
typedef Image < TInternalPrecision, TInputImage::ImageDimension >	InternalImageType
typedef TKernelImage	KernelImageType
typedef KernelImageType::IndexType	KernelIndexType
typedef KernelImageType::PixelType	KernelPixelType
typedef KernelImageType::RegionType	KernelRegionType
typedef KernelImageType::SizeType	KernelSizeType
typedef TOutputImage	OutputImageType
typedef OutputImageType::IndexType	OutputIndexType
typedef OutputImageType::PixelType	OutputPixelType
typedef OutputImageType::RegionType	OutputRegionType
typedef OutputImageType::SizeType	OutputSizeType
typedef SmartPointer< Self >	Pointer
typedef FFTConvolutionImageFilter	Self
typedef InputSizeType::SizeValueType	SizeValueType
typedef ConvolutionImageFilterBase < TInputImage, TKernelImage, TOutputImage >	Superclass
Public Member Functions
virtual ::itk::LightObject::Pointer	CreateAnother (void) const
virtual const char *	GetNameOfClass () const
Static Public Member Functions
static Pointer	New ()
Static Public Attributes
static const unsigned int	ImageDimension = TInputImage::ImageDimension
Protected Member Functions
	FFTConvolutionImageFilter ()
void	GenerateData ()
void	GenerateInputRequestedRegion ()
InputSizeType	GetPadSize () const
bool	GetXDimensionIsOdd () const
void	PrepareInputs (InternalComplexImagePointerType &preparedInput, InternalComplexImagePointerType &preparedKernel, ProgressAccumulator *progress, float progressWeight)
void	ProduceOutput (InternalComplexImageType paddedOutput, ProgressAccumulator progress, float progressWeight)
	~FFTConvolutionImageFilter ()
Private Member Functions
	FFTConvolutionImageFilter (const Self &)
void	operator= (const Self &)

Detailed Description

template<class TInputImage, class TKernelImage = TInputImage, class TOutputImage = TInputImage, class TInternalPrecision = double>
class itk::FFTConvolutionImageFilter< TInputImage, TKernelImage, TOutputImage, TInternalPrecision >

Convolve a given image with an arbitrary image kernel using multiplication in the Fourier domain.

This filter produces output equivalent to the output of the ConvolutionImageFilter. However, it takes advantage of the convolution theorem to accelerate the convolution computation when the kernel is large.

Warning:: This filter ignores the spacing, origin, and orientation of the kernel image and treats them as identical to those in the input image.

This code was adapted from the Insight Journal contribution:

"FFT Based Convolution" by Gaetan Lehmann http://hdl.handle.net/10380/3154

See also:: ConvolutionImageFilter

Definition at line 52 of file itkFFTConvolutionImageFilter.h.