The EFourierImage class is used to represent rectangular regions of interest inside EBW32f gray-level images. See ROIs. More...

#include <eVision/Easy/EFourierImage.h>

Collaboration diagram for eVision::EFourierImage:

Public Member Functions
	EFourierImage ()
	Constructs a EFourierImage image.
	EFourierImage (eVision::EFrequentialDomainFormat domainFormat)
	Constructs a EFourierImage image.
	EFourierImage (eVision::EFrequentialDomainFormat domainFormat, int32_t width, int32_t height)
	Constructs a EFourierImage image.
	EFourierImage (eVision::EFrequentialDomainFormat domainFormat, int32_t width, int32_t height, eVision::EBW32f constant)
	Constructs a EFourierImage image.
	EFourierImage (const eVision::EFourierImage &other)
	Constructs a EFourierImage image.
virtual	~EFourierImage () throw ()
eVision::EFourierImage &	operator= (const eVision::EFourierImage &other)
	Copies a EFourierImage image.
void	InitializeFromUnalignedBuffer (int width, int height, void *buffer, int pitch)
	Initializes image from an unaligned buffer.
void	InitializeFromUnalignedBuffer (int width, int height, void *buffer)
	Initializes image from an unaligned buffer.
void	ComputeMagnitude (eVision::EImageBW8 &dest)
	Computes and outputs the magnitude of each pixel into a new image. A normalization is applied when outputting a EImageBW8 image so that every magnitude values lies inside the [0; 255] range. This is useful when visualizing.
void	ComputeMagnitude (eVision::EImageBW32f &dest)
	Computes and outputs the magnitude of each pixel into a new image. A normalization is applied when outputting a EImageBW8 image so that every magnitude values lies inside the [0; 255] range. This is useful when visualizing.
void	ComputePhase (eVision::EImageBW8 &dest)
	Computes and outputs the phase of each pixel into a new image. A normalization is applied when outputting into a EImageBW8 image so that every magnitude values lie inside the [0; 255] range. This is useful when visualizing.
void	ComputePhase (eVision::EImageBW32f &dest)
	Computes and outputs the phase of each pixel into a new image. A normalization is applied when outputting into a EImageBW8 image so that every magnitude values lie inside the [0; 255] range. This is useful when visualizing.
void	Shift ()
	Rearranges this Fourier transform by shifting the zero-frequency component to the center of the image. Shift and InverseShift can only be applied on an EFourierImage when its format is EFrequentialDomainFormat_ComplexExtended. This method will throw an exception if it's not the case. Will throw an exception if the method is applied on an image that has already been shifted first with EFourierImage::Shift.
void	Shift (eVision::EFourierImage &dest)
	Rearranges this Fourier transform by shifting the zero-frequency component to the center of the image. Shift and InverseShift can only be applied on an EFourierImage when its format is EFrequentialDomainFormat_ComplexExtended. This method will throw an exception if it's not the case. Will throw an exception if the method is applied on an image that has already been shifted first with EFourierImage::Shift.
void	Mask (eVision::EFourierImage &dest, const eVision::ERegion &mask)
	Applies a mask, an element wise multiplication between pixel values of the mask (represented as a grayscale image) with the complex number of the fourier image. When using a region as a mask, element of this fourier image contained in the region coordinates will be nullified.
void	Mask (eVision::EFourierImage &dest, const eVision::EImageBW8 &region)
	Applies a mask, an element wise multiplication between pixel values of the mask (represented as a grayscale image) with the complex number of the fourier image. When using a region as a mask, element of this fourier image contained in the region coordinates will be nullified.
void	InverseShift ()
	Inverses rearrangement of EFourierImage::Shift. Shift and InverseShift can only be applied on an EFourierImage when its format is EFrequentialDomainFormat_ComplexExtended. Will throw an exception if it's not the case. Will throw an exception if the method is applied on an image that hasn't been shifted first with EFourierImage::Shift.
void	InverseShift (eVision::EFourierImage &dest)
	Inverses rearrangement of EFourierImage::Shift. Shift and InverseShift can only be applied on an EFourierImage when its format is EFrequentialDomainFormat_ComplexExtended. Will throw an exception if it's not the case. Will throw an exception if the method is applied on an image that hasn't been shifted first with EFourierImage::Shift.
void	ExtractReal (eVision::EImageBW32f &dest)
	Extract the real components. When the frequential domain format is extended, this is equivalent to extract all columns whose indices are even. If the format is EFrequentialDomainFormat_Packed, an implicit conversion to the extended format is applied before extracting.
void	ExtractImaginary (eVision::EImageBW32f &dest)
	Extract the imaginary components. When the frequential domain format is extended, this is equivalent to extract all columns whose indices are odd. If the format is EFrequentialDomainFormat_Packed, an implicit conversion to the extended format is applied before extracting.
eVision::EFrequentialDomainFormat	GetFrequentialDomainFormat () const
	Returns the frequential domain format.
void	SetIsShifted (bool shifted)
	Sets whether the image has been shifted by EFourierImage::Shift.
int32_t	GetRowPitch () const
	Gets the pitch of a row (the number of bytes between two vertically adjacent pixels).
int32_t	GetColPitch () const
	Gets the pitch of a column (number of bytes between two horizontally adjacent pixels).
void *	GetImagePtr ()
	Returns a pointer to the pixel buffer.
const void *	GetImagePtr () const
	Returns a pointer to the pixel buffer.
int32_t	GetWidth () const
	Gets the width of the underlying image.
int32_t	GetHeight () const
	Gets the height of the underlying image.
void	Save (const std::string &path)
	Save the EFourierImage object to the given file. Object is saved using the Euresys proprietary file format.
void	Save (eVision::ESerializer *serializer)
	Save the EFourierImage object to the given file. Object is saved using the Euresys proprietary file format.
void	Load (const std::string &path)
	Load the EFourierImage object from the given file. Object is loaded assuming the file is in Euresys proprietary format.
void	Load (eVision::ESerializer *serializer)
	Load the EFourierImage object from the given file. Object is loaded assuming the file is in Euresys proprietary format.
void	SaveImage (const std::string &path)
	Saves the content of this complex image to a Tiff file.
void	Load (const std::string &path, eVision::EFrequentialDomainFormat domainFormat)
	Restores an image stored in the given file.
void	SetImagePtr (int width, int height, void *imagePointer, eVision::EFrequentialDomainFormat domainFormat, int bitsPerRow)
	Sets the pointer to an externally allocated image buffer.
void	SetImagePtr (int width, int height, void *imagePointer, eVision::EFrequentialDomainFormat domainFormat)
	Sets the pointer to an externally allocated image buffer.
void	UseExternalBuffer (int width, int height, void *buffer, eVision::EFrequentialDomainFormat domainFormat, int rowPitch)
	Sets the pointer to an externally allocated image buffer.
void	SetSize (int32_t width, int32_t height)
	Sets the width and height.
uint32_t	GetBitsPerPixel ()
	Gets the number of storage bits per pixel.
bool	IsVoid ()
	Tests whether if the topmost parent image of this hierarchy has a zero size.
uint32_t	GetPlanesPerPixel () const
	Gets the number of color components in each pixel of the image.
eVision::EImageType	GetType () const
	Gets the image pixel type, as defined by the EImageType enumeration.
void	CopyTo (eVision::EFourierImage &other)
	Copies all the data of the current EFourierImage object into another EFourierImage object.
	EFourierImage (CppWrapperInternal::InternalConstructor)

Static Public Member Functions
static void	ShiftMask (const eVision::ERegion &region, eVision::ERegion &shiftedRegion, int32_t regionWidth, int32_t regionHeight)
	Shifts the mask that can be a region or a grayscale image. This method can be used in case EFourierImage::Mask is applied on a previously shifted frequency image, and if the mask isn't centered properly.
static void	ShiftMask (const eVision::EImageBW8 &mask, eVision::EImageBW8 &shiftedMask)
	Shifts the mask that can be a region or a grayscale image. This method can be used in case EFourierImage::Mask is applied on a previously shifted frequency image, and if the mask isn't centered properly.

Public Attributes
CppWrapperInternal::WrappedClass	wrappedClass_

Detailed Description

The EFourierImage class is used to represent rectangular regions of interest inside EBW32f gray-level images. See ROIs.

License(s): BasicTypes

Constructor & Destructor Documentation

◆ EFourierImage() [1/6]

eVision::EFourierImage::EFourierImage ( )

Constructs a EFourierImage image.

The constructor with no arguments creates a zero-sized image. You can modify the image size by calling EBaseROI::SetSize method.

The sizing constructor constructs an image of the given size. See EBaseROI::SetSize for informations about the sizing restrictions.

The copy constructor copies all the supplied image properties (content, attributes, sub-ROIs...) into the current object. Note that if you used EFourierImage::UseExternalBuffer to assign an external buffer to the image, that buffer will not be copied, the resulting image will just point to the same buffer as the original.

◆ EFourierImage() [2/6]

eVision::EFourierImage::EFourierImage ( eVision::EFrequentialDomainFormat domainFormat )

Constructs a EFourierImage image.

Parameters

domainFormat The EFrequentialDomainFormat of the EFourierImage.

The constructor with no arguments creates a zero-sized image. You can modify the image size by calling EBaseROI::SetSize method.

The sizing constructor constructs an image of the given size. See EBaseROI::SetSize for informations about the sizing restrictions.

The copy constructor copies all the supplied image properties (content, attributes, sub-ROIs...) into the current object. Note that if you used EFourierImage::UseExternalBuffer to assign an external buffer to the image, that buffer will not be copied, the resulting image will just point to the same buffer as the original.

◆ EFourierImage() [3/6]

eVision::EFourierImage::EFourierImage	(	eVision::EFrequentialDomainFormat	domainFormat,
		int32_t	width,
		int32_t	height )

Constructs a EFourierImage image.

Parameters

domainFormat	The EFrequentialDomainFormat of the EFourierImage.
width	The width, in pixels.
height	The height, in pixels.

The constructor with no arguments creates a zero-sized image. You can modify the image size by calling EBaseROI::SetSize method.

The sizing constructor constructs an image of the given size. See EBaseROI::SetSize for informations about the sizing restrictions.

The copy constructor copies all the supplied image properties (content, attributes, sub-ROIs...) into the current object. Note that if you used EFourierImage::UseExternalBuffer to assign an external buffer to the image, that buffer will not be copied, the resulting image will just point to the same buffer as the original.

◆ EFourierImage() [4/6]

eVision::EFourierImage::EFourierImage	(	eVision::EFrequentialDomainFormat	domainFormat,
		int32_t	width,
		int32_t	height,
		eVision::EBW32f	constant )

Constructs a EFourierImage image.

Parameters

domainFormat	The EFrequentialDomainFormat of the EFourierImage.
width	The width, in pixels.
height	The height, in pixels.
constant	Gray-level constant.

The constructor with no arguments creates a zero-sized image. You can modify the image size by calling EBaseROI::SetSize method.

The sizing constructor constructs an image of the given size. See EBaseROI::SetSize for informations about the sizing restrictions.

The copy constructor copies all the supplied image properties (content, attributes, sub-ROIs...) into the current object. Note that if you used EFourierImage::UseExternalBuffer to assign an external buffer to the image, that buffer will not be copied, the resulting image will just point to the same buffer as the original.

◆ EFourierImage() [5/6]

eVision::EFourierImage::EFourierImage ( const eVision::EFourierImage & other )

Constructs a EFourierImage image.

Parameters

other Another EFourierImage object.

The constructor with no arguments creates a zero-sized image. You can modify the image size by calling EBaseROI::SetSize method.

The sizing constructor constructs an image of the given size. See EBaseROI::SetSize for informations about the sizing restrictions.

The copy constructor copies all the supplied image properties (content, attributes, sub-ROIs...) into the current object. Note that if you used EFourierImage::UseExternalBuffer to assign an external buffer to the image, that buffer will not be copied, the resulting image will just point to the same buffer as the original.

◆ ~EFourierImage()

eVision::EFourierImage::~EFourierImage	(		)
throw	(	)

virtual

◆ EFourierImage() [6/6]

eVision::EFourierImage::EFourierImage ( CppWrapperInternal::InternalConstructor )

Member Function Documentation

◆ ComputeMagnitude() [1/2]

void eVision::EFourierImage::ComputeMagnitude ( eVision::EImageBW32f & dest )

Computes and outputs the magnitude of each pixel into a new image. A normalization is applied when outputting a EImageBW8 image so that every magnitude values lies inside the [0; 255] range. This is useful when visualizing.

Parameters

dest	The image that will contain the magnitude.

◆ ComputeMagnitude() [2/2]

void eVision::EFourierImage::ComputeMagnitude ( eVision::EImageBW8 & dest )

Computes and outputs the magnitude of each pixel into a new image. A normalization is applied when outputting a EImageBW8 image so that every magnitude values lies inside the [0; 255] range. This is useful when visualizing.

Parameters

dest	The image that will contain the magnitude.

◆ ComputePhase() [1/2]

void eVision::EFourierImage::ComputePhase ( eVision::EImageBW32f & dest )

Computes and outputs the phase of each pixel into a new image. A normalization is applied when outputting into a EImageBW8 image so that every magnitude values lie inside the [0; 255] range. This is useful when visualizing.

Parameters

dest	The image that will contain the phase.

◆ ComputePhase() [2/2]

void eVision::EFourierImage::ComputePhase ( eVision::EImageBW8 & dest )

Computes and outputs the phase of each pixel into a new image. A normalization is applied when outputting into a EImageBW8 image so that every magnitude values lie inside the [0; 255] range. This is useful when visualizing.

Parameters

dest	The image that will contain the phase.

◆ CopyTo()

void eVision::EFourierImage::CopyTo ( eVision::EFourierImage & other )

Copies all the data of the current EFourierImage object into another EFourierImage object.

Parameters

other An EFourierImage object in which the current EFourierImage object data have to be copied.

◆ ExtractImaginary()

void eVision::EFourierImage::ExtractImaginary ( eVision::EImageBW32f & dest )

Extract the imaginary components. When the frequential domain format is extended, this is equivalent to extract all columns whose indices are odd. If the format is EFrequentialDomainFormat_Packed, an implicit conversion to the extended format is applied before extracting.

Parameters

dest	Image contains the real components

◆ ExtractReal()

void eVision::EFourierImage::ExtractReal ( eVision::EImageBW32f & dest )

Extract the real components. When the frequential domain format is extended, this is equivalent to extract all columns whose indices are even. If the format is EFrequentialDomainFormat_Packed, an implicit conversion to the extended format is applied before extracting.

Parameters

dest	Image contains the real components

◆ GetBitsPerPixel()

uint32_t eVision::EFourierImage::GetBitsPerPixel ( )

Gets the number of storage bits per pixel.

◆ GetColPitch()

int32_t eVision::EFourierImage::GetColPitch ( ) const

Gets the pitch of a column (number of bytes between two horizontally adjacent pixels).

◆ GetFrequentialDomainFormat()

eVision::EFrequentialDomainFormat eVision::EFourierImage::GetFrequentialDomainFormat ( ) const

Returns the frequential domain format.

◆ GetHeight()

int32_t eVision::EFourierImage::GetHeight ( ) const

Gets the height of the underlying image.

◆ GetImagePtr() [1/2]

void * eVision::EFourierImage::GetImagePtr ( )

Returns a pointer to the pixel buffer.

◆ GetImagePtr() [2/2]

const void * eVision::EFourierImage::GetImagePtr ( ) const

Returns a pointer to the pixel buffer.

◆ GetPlanesPerPixel()

uint32_t eVision::EFourierImage::GetPlanesPerPixel ( ) const

Gets the number of color components in each pixel of the image.

◆ GetRowPitch()

int32_t eVision::EFourierImage::GetRowPitch ( ) const

Gets the pitch of a row (the number of bytes between two vertically adjacent pixels).

◆ GetType()

eVision::EImageType eVision::EFourierImage::GetType ( ) const

Gets the image pixel type, as defined by the EImageType enumeration.

◆ GetWidth()

int32_t eVision::EFourierImage::GetWidth ( ) const

Gets the width of the underlying image.

◆ InitializeFromUnalignedBuffer() [1/2]

void eVision::EFourierImage::InitializeFromUnalignedBuffer	(	int	width,
		int	height,
		void *	buffer )

Initializes image from an unaligned buffer.

Parameters

width	Width of the image in the buffer.
height	Height of the image in the buffer.
buffer	Address of the buffer.

The image will be initialized to fit the width and height passed as arguments. The contents of the buffer will then be copied into the image. The buffer contents must be compatible with the pixel type of the image.

◆ InitializeFromUnalignedBuffer() [2/2]

void eVision::EFourierImage::InitializeFromUnalignedBuffer	(	int	width,
		int	height,
		void *	buffer,
		int	pitch )

Initializes image from an unaligned buffer.

Parameters

width	Width of the image in the buffer.
height	Height of the image in the buffer.
buffer	Address of the buffer.
pitch	Pitch of the buffer (in bytes). If omitted, the method assumes there is no padding (the pitch is assumed be equal (width * sizeOfAPixel))

The image will be initialized to fit the width and height passed as arguments. The contents of the buffer will then be copied into the image. The buffer contents must be compatible with the pixel type of the image.

◆ InverseShift() [1/2]

void eVision::EFourierImage::InverseShift ( )

Inverses rearrangement of EFourierImage::Shift. Shift and InverseShift can only be applied on an EFourierImage when its format is EFrequentialDomainFormat_ComplexExtended. Will throw an exception if it's not the case. Will throw an exception if the method is applied on an image that hasn't been shifted first with EFourierImage::Shift.

When not referencing an image, the method is applied in-place.

◆ InverseShift() [2/2]

void eVision::EFourierImage::InverseShift ( eVision::EFourierImage & dest )

Inverses rearrangement of EFourierImage::Shift. Shift and InverseShift can only be applied on an EFourierImage when its format is EFrequentialDomainFormat_ComplexExtended. Will throw an exception if it's not the case. Will throw an exception if the method is applied on an image that hasn't been shifted first with EFourierImage::Shift.

Parameters

dest	The image that will contain the shifted image.

When not referencing an image, the method is applied in-place.

◆ IsVoid()

bool eVision::EFourierImage::IsVoid ( )

Tests whether if the topmost parent image of this hierarchy has a zero size.

◆ Load() [1/3]

void eVision::EFourierImage::Load ( const std::string & path )

Load the EFourierImage object from the given file. Object is loaded assuming the file is in Euresys proprietary format.

Parameters

path	The full path of the file to be loaded.

◆ Load() [2/3]

void eVision::EFourierImage::Load	(	const std::string &	path,
		eVision::EFrequentialDomainFormat	domainFormat )

Restores an image stored in the given file.

Parameters

path	Full path of the file.
domainFormat	Frequential domain format of the loaded image.

◆ Load() [3/3]

void eVision::EFourierImage::Load ( eVision::ESerializer * serializer )

Load the EFourierImage object from the given file. Object is loaded assuming the file is in Euresys proprietary format.

Parameters

serializer The ESerializer file-like object that is read from.

◆ Mask() [1/2]

void eVision::EFourierImage::Mask	(	eVision::EFourierImage &	dest,
		const eVision::EImageBW8 &	region )

Applies a mask, an element wise multiplication between pixel values of the mask (represented as a grayscale image) with the complex number of the fourier image. When using a region as a mask, element of this fourier image contained in the region coordinates will be nullified.

Parameters

dest	Masked frequency image.
region	Region to use as a mask.

The mask is expected to have the same dimension as the spatial image used to compute this fourier transform result. The masking of a packed EFourierImage and the masking of a complex extended EFourierImage computed from the direct fourier transform of the same image yield an equivalent EFourierImage only if:

The specified mask is symmetrically central.
The first and last columns are vertically symmetric. For more flexibility, use a EFourierImage in the complex extended format.

◆ Mask() [2/2]

void eVision::EFourierImage::Mask	(	eVision::EFourierImage &	dest,
		const eVision::ERegion &	mask )

Applies a mask, an element wise multiplication between pixel values of the mask (represented as a grayscale image) with the complex number of the fourier image. When using a region as a mask, element of this fourier image contained in the region coordinates will be nullified.

Parameters

dest	Masked frequency image.
mask	Grayscale image to use as a mask.

The mask is expected to have the same dimension as the spatial image used to compute this fourier transform result. The masking of a packed EFourierImage and the masking of a complex extended EFourierImage computed from the direct fourier transform of the same image yield an equivalent EFourierImage only if:

The specified mask is symmetrically central.
The first and last columns are vertically symmetric. For more flexibility, use a EFourierImage in the complex extended format.

◆ operator=()

eVision::EFourierImage & eVision::EFourierImage::operator= ( const eVision::EFourierImage & other )

Copies a EFourierImage image.

Parameters

other Another EFourierImage object.

This method copies all the supplied image properties (content, attributes, sub-ROIs...) into the current object.

◆ Save() [1/2]

void eVision::EFourierImage::Save ( const std::string & path )

Save the EFourierImage object to the given file. Object is saved using the Euresys proprietary file format.

Parameters

path	The full path of the destination file.

◆ Save() [2/2]

void eVision::EFourierImage::Save ( eVision::ESerializer * serializer )

Save the EFourierImage object to the given file. Object is saved using the Euresys proprietary file format.

Parameters

serializer The ESerializer file-like object that is written to.

◆ SaveImage()

void eVision::EFourierImage::SaveImage ( const std::string & path )

Saves the content of this complex image to a Tiff file.

Parameters

path	Path to the file to save to.

◆ SetImagePtr() [1/2]

void eVision::EFourierImage::SetImagePtr	(	int	width,
		int	height,
		void *	imagePointer,
		eVision::EFrequentialDomainFormat	domainFormat )

Sets the pointer to an externally allocated image buffer.

Parameters

width	The width of the supplied buffer, in pixels.
height	The height of the supplied buffer, in pixels.
imagePointer	The pointer (aligned on 4 bytes) to the buffer, which must be large enough to hold the image.
domainFormat	Frequential domain format of the loaded image.

Deprecated

Use EFourierImage::UseExternalBuffer instead.

Deprecated in version 26.2. Scheduled to be removed in version 27.6.

◆ SetImagePtr() [2/2]

void eVision::EFourierImage::SetImagePtr	(	int	width,
		int	height,
		void *	imagePointer,
		eVision::EFrequentialDomainFormat	domainFormat,
		int	bitsPerRow )

Sets the pointer to an externally allocated image buffer.

Parameters

width	The width of the supplied buffer, in pixels.
height	The height of the supplied buffer, in pixels.
imagePointer	The pointer (aligned on 4 bytes) to the buffer, which must be large enough to hold the image.
domainFormat	Frequential domain format of the loaded image.
bitsPerRow	The total number of bits contained in a row, padding included. Using the value 0 (default) means that this size is computed from the buffer width and the pixel size plus a padding with the smallest possible value that leads to a multiple of 4 bytes (32 bits), which is the minimum padding accepted by EFourierImage::UseExternalBuffer.

Deprecated

Use EFourierImage::UseExternalBuffer instead.

Deprecated in version 26.2. Scheduled to be removed in version 27.6.

◆ SetIsShifted()

void eVision::EFourierImage::SetIsShifted ( bool shifted )

Sets whether the image has been shifted by EFourierImage::Shift.

◆ SetSize()

void eVision::EFourierImage::SetSize	(	int32_t	width,
		int32_t	height )

Sets the width and height.

Parameters

width	The new requested image width.
height	The new requested image height.

◆ Shift() [1/2]

void eVision::EFourierImage::Shift ( )

Rearranges this Fourier transform by shifting the zero-frequency component to the center of the image. Shift and InverseShift can only be applied on an EFourierImage when its format is EFrequentialDomainFormat_ComplexExtended. This method will throw an exception if it's not the case. Will throw an exception if the method is applied on an image that has already been shifted first with EFourierImage::Shift.

When using the no-argument overload, the method is applied in-place.

◆ Shift() [2/2]

void eVision::EFourierImage::Shift ( eVision::EFourierImage & dest )

Rearranges this Fourier transform by shifting the zero-frequency component to the center of the image. Shift and InverseShift can only be applied on an EFourierImage when its format is EFrequentialDomainFormat_ComplexExtended. This method will throw an exception if it's not the case. Will throw an exception if the method is applied on an image that has already been shifted first with EFourierImage::Shift.

Parameters

dest	The image that will contain the shifted image.

When using the no-argument overload, the method is applied in-place.

◆ ShiftMask() [1/2]

void eVision::EFourierImage::ShiftMask	(	const eVision::EImageBW8 &	mask,
		eVision::EImageBW8 &	shiftedMask )

static

Shifts the mask that can be a region or a grayscale image. This method can be used in case EFourierImage::Mask is applied on a previously shifted frequency image, and if the mask isn't centered properly.

Parameters

mask	Grayscale image to use as a mask.
shiftedMask	Shifted grayscale mask.

◆ ShiftMask() [2/2]

void eVision::EFourierImage::ShiftMask	(	const eVision::ERegion &	region,
		eVision::ERegion &	shiftedRegion,
		int32_t	regionWidth,
		int32_t	regionHeight )

static

Shifts the mask that can be a region or a grayscale image. This method can be used in case EFourierImage::Mask is applied on a previously shifted frequency image, and if the mask isn't centered properly.

Parameters

region	Region to use as a mask.
shiftedRegion	Shifted region.
regionWidth	Width of the region.
regionHeight	Height of the region.

◆ UseExternalBuffer()

void eVision::EFourierImage::UseExternalBuffer	(	int	width,
		int	height,
		void *	buffer,
		eVision::EFrequentialDomainFormat	domainFormat,
		int	rowPitch )

Sets the pointer to an externally allocated image buffer.

Parameters

width	The width of the supplied buffer, in pixels.
height	The height of the supplied buffer, in pixels.
buffer	The pointer (aligned on 4 bytes) to the buffer, which must be large enough to hold the image.
domainFormat	Frequential domain format of the loaded image.
rowPitch	The total number of bytes contained in a row, padding included.

Member Data Documentation

◆ wrappedClass_

CppWrapperInternal::WrappedClass eVision::EFourierImage::wrappedClass_

Public Member Functions

Static Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ EFourierImage() [1/6]

◆ EFourierImage() [2/6]

◆ EFourierImage() [3/6]

◆ EFourierImage() [4/6]

◆ EFourierImage() [5/6]

◆ ~EFourierImage()

◆ EFourierImage() [6/6]

Member Function Documentation

◆ ComputeMagnitude() [1/2]

◆ ComputeMagnitude() [2/2]

◆ ComputePhase() [1/2]

◆ ComputePhase() [2/2]

◆ CopyTo()

◆ ExtractImaginary()

◆ ExtractReal()

◆ GetBitsPerPixel()

◆ GetColPitch()

◆ GetFrequentialDomainFormat()

◆ GetHeight()

◆ GetImagePtr() [1/2]

◆ GetImagePtr() [2/2]

◆ GetPlanesPerPixel()

◆ GetRowPitch()

◆ GetType()

◆ GetWidth()

◆ InitializeFromUnalignedBuffer() [1/2]

◆ InitializeFromUnalignedBuffer() [2/2]

◆ InverseShift() [1/2]

◆ InverseShift() [2/2]

◆ IsVoid()

◆ Load() [1/3]

◆ Load() [2/3]

◆ Load() [3/3]

◆ Mask() [1/2]

◆ Mask() [2/2]

◆ operator=()

◆ Save() [1/2]

◆ Save() [2/2]

◆ SaveImage()

◆ SetImagePtr() [1/2]

◆ SetImagePtr() [2/2]

◆ SetIsShifted()

◆ SetSize()

◆ Shift() [1/2]

◆ Shift() [2/2]

◆ ShiftMask() [1/2]

◆ ShiftMask() [2/2]

◆ UseExternalBuffer()

Member Data Documentation

◆ wrappedClass_