This class provides the implementation of the Fourier transformation of the Ocean framework. More...

#include <FourierTransformation.h>

Static Public Member Functions
template<typename T >
static void	spatialToFrequency2 (const std::complex< T > spatial, const unsigned int width, const unsigned int height, std::complex< T > frequency, Worker *worker=nullptr)
	Applies a forward Fourier transformation for a given 2D spatial signal.

template<typename T >
static void	frequencyToSpatial2 (const std::complex< T > frequency, const unsigned int width, const unsigned int height, std::complex< T > spatial, Worker *worker=nullptr)
	Applies a backward Fourier transformation for a given 2D frequency signal.

Static Protected Member Functions
template<typename T >
static void	spatialToFrequencyHorizontalSubset2 (const std::complex< T > spatial, const unsigned int width, const unsigned int height, std::complex< T > frequencyHorizontal, const unsigned int firstRow, const unsigned int numberRows)
	Applies a horizontal forward Fourier transformation for a subset of a given 2D spatial signal.

template<typename T >
static void	spatialToFrequencyVerticalSubset2 (const std::complex< T > spatial, const unsigned int width, const unsigned int height, std::complex< T > frequencyVertical, const unsigned int firstColumn, const unsigned int numberColumns)
	Applies a vertical forward Fourier transformation for a subset of a given 2D spatial signal.

template<typename T >
static void	frequencyToSpatialHorizontalSubset2 (const std::complex< T > frequency, const unsigned int width, const unsigned int height, std::complex< T > spatialHorizontal, const unsigned int firstRow, const unsigned int numberRows)
	Applies a horizontal backward Fourier transformation for subset of a given 2D frequency signal.

template<typename T >
static void	frequencyToSpatialVerticalSubset2 (const std::complex< T > frequency, const unsigned int width, const unsigned int height, std::complex< T > spatialVertical, const unsigned int firstColumn, const unsigned int numberColumns)
	Applies a vertical backward Fourier transformation for a subset of a given 2D frequency signal.

Detailed Description

This class provides the implementation of the Fourier transformation of the Ocean framework.

Member Function Documentation

◆ frequencyToSpatial2()

template<typename T >

void Ocean::FourierTransformation::NaiveImplementation::frequencyToSpatial2	(	const std::complex< T > *	frequency,
		const unsigned int	width,
		const unsigned int	height,
		std::complex< T > *	spatial,
		Worker *	worker = `nullptr`
	)

inlinestatic

Applies a backward Fourier transformation for a given 2D frequency signal.

The spatial signal may be composed of several channels (element-wise interleaved).
However only one joined block of frequencies will be transformed to one channel at once.

Parameters

frequency	2D frequency signal that will be transformed
width	The width of the 2D signal in elements
height	height of the 2D signal in elements
spatial	Resulting spatial frequency for the given signal, make sure that the provided buffer is large enough
worker	Optional worker object to distribute the computation

Template Parameters

T	Data type of the spatial and frequency signals

◆ frequencyToSpatialHorizontalSubset2()

template<typename T >

void Ocean::FourierTransformation::NaiveImplementation::frequencyToSpatialHorizontalSubset2	(	const std::complex< T > *	frequency,
		const unsigned int	width,
		const unsigned int	height,
		std::complex< T > *	spatialHorizontal,
		const unsigned int	firstRow,
		const unsigned int	numberRows
	)

staticprotected

Applies a horizontal backward Fourier transformation for subset of a given 2D frequency signal.

Parameters

frequency	2D frequency signal that will be transformed
width	The width of the 2D signal in elements
height	height of the 2D signal in elements
spatialHorizontal	Resulting spatial frequency for the given signal, make sure that the provided buffer is large enough
firstRow	First row to be handled
numberRows	Number of rows to be handled

◆ frequencyToSpatialVerticalSubset2()

template<typename T >

void Ocean::FourierTransformation::NaiveImplementation::frequencyToSpatialVerticalSubset2	(	const std::complex< T > *	frequency,
		const unsigned int	width,
		const unsigned int	height,
		std::complex< T > *	spatialVertical,
		const unsigned int	firstColumn,
		const unsigned int	numberColumns
	)

staticprotected

Applies a vertical backward Fourier transformation for a subset of a given 2D frequency signal.

Parameters

frequency	2D frequency signal that will be transformed
width	The width of the 2D signal in elements
height	height of the 2D signal in elements
spatialVertical	Resulting vertical spatial frequency for the given signal, make sure that the provided buffer is large enough
firstColumn	First column to be handled
numberColumns	Number of columns to be handled

◆ spatialToFrequency2()

template<typename T >

void Ocean::FourierTransformation::NaiveImplementation::spatialToFrequency2	(	const std::complex< T > *	spatial,
		const unsigned int	width,
		const unsigned int	height,
		std::complex< T > *	frequency,
		Worker *	worker = `nullptr`
	)

inlinestatic

Applies a forward Fourier transformation for a given 2D spatial signal.

The spatial signal may be composed of several channels (element-wise interleaved).
However only one channel will be transformed to one joined block of frequencies at once.

Parameters

spatial	2D spatial signal that will be transformed
width	The width of the 2D signal in elements
height	height of the 2D signal in elements
frequency	Resulting frequency analysis for the given signal, make sure that the provided buffer is large enough
worker	Optional worker object to distribute the computation

Template Parameters

T	Data type of the spatial and frequency signals

◆ spatialToFrequencyHorizontalSubset2()

template<typename T >

void Ocean::FourierTransformation::NaiveImplementation::spatialToFrequencyHorizontalSubset2	(	const std::complex< T > *	spatial,
		const unsigned int	width,
		const unsigned int	height,
		std::complex< T > *	frequencyHorizontal,
		const unsigned int	firstRow,
		const unsigned int	numberRows
	)

staticprotected

Applies a horizontal forward Fourier transformation for a subset of a given 2D spatial signal.

Parameters

spatial	2D spatial signal that will be transformed
width	The width of the 2D signal in elements
height	height of the 2D signal in elements
frequencyHorizontal	Resulting horizontal frequency analysis for the given signal, make sure that the provided buffer is large enough
firstRow	First row to be handled
numberRows	Number of rows to be handled

◆ spatialToFrequencyVerticalSubset2()

template<typename T >

void Ocean::FourierTransformation::NaiveImplementation::spatialToFrequencyVerticalSubset2	(	const std::complex< T > *	spatial,
		const unsigned int	width,
		const unsigned int	height,
		std::complex< T > *	frequencyVertical,
		const unsigned int	firstColumn,
		const unsigned int	numberColumns
	)

staticprotected

Applies a vertical forward Fourier transformation for a subset of a given 2D spatial signal.

Parameters

spatial	2D spatial signal that will be transformed
width	The width of the 2D signal in elements
height	height of the 2D signal in elements
frequencyVertical	Resulting vertical frequency analysis for the given signal, make sure that the provided buffer is large enough
firstColumn	First column to be handled
numberColumns	Number of columns to be handled

The documentation for this class was generated from the following file:

FourierTransformation.h

Static Public Member Functions

Static Protected Member Functions

Detailed Description

Member Function Documentation

◆ frequencyToSpatial2()

◆ frequencyToSpatialHorizontalSubset2()

◆ frequencyToSpatialVerticalSubset2()

◆ spatialToFrequency2()

◆ spatialToFrequencyHorizontalSubset2()

◆ spatialToFrequencyVerticalSubset2()