Functions
pocketfft::shape_t	MakeAxes (const unsigned int dimension)

template<typename TSize>
pocketfft::shape_t	MakeShape (const TSize &itkSize, const unsigned int dimension)

template<typename TSize>
pocketfft::stride_t	MakeStride (const TSize &itkSize, const unsigned int dimension, const vcl_size_t pixelBytes)

template<typename TValue>
void	Transform1D (std::complex< TValue > *data, const vcl_size_t lineLength, const bool forward, const TValue scale)

Detailed Description

Helpers shared by the PocketFFT image filters.

Function Documentation

pocketfft::shape_t itk::PocketFFTCommon::MakeAxes ( const unsigned int dimension )

inline

All axes, ordered so axes.back() is the ITK x dimension (the axis pocketfft halves in r2c/c2r).

Definition at line 63 of file itkPocketFFTCommon.h.

template<typename TSize>

pocketfft::shape_t itk::PocketFFTCommon::MakeShape	(	const TSize &	itkSize,
		const unsigned int	dimension )

inline

pocketfft shape is listed slowest-varying axis first; the ITK buffer is x-fastest, so ITK dimension i maps to shape index (Dimension - 1 - i).

Definition at line 35 of file itkPocketFFTCommon.h.

template<typename TSize>

pocketfft::stride_t itk::PocketFFTCommon::MakeStride	(	const TSize &	itkSize,
		const unsigned int	dimension,
		const vcl_size_t	pixelBytes )

inline

Contiguous-buffer strides in bytes for a pixel of size pixelBytes.

Definition at line 48 of file itkPocketFFTCommon.h.

template<typename TValue>

void itk::PocketFFTCommon::Transform1D	(	std::complex< TValue > *	data,
		const vcl_size_t	lineLength,
		const bool	forward,
		const TValue	scale )

inline

In-place 1D complex transform of a contiguous line buffer.

Definition at line 76 of file itkPocketFFTCommon.h.