#include <visp3/visual_features/vpFeatureLuminanceMapping.h>

Inheritance diagram for vpLuminanceMapping:

Public Member Functions
	vpLuminanceMapping (unsigned int mappingSize)

virtual	~vpLuminanceMapping ()

virtual void	map (const vpImage< unsigned char > &I, vpColVector &s)=0

virtual void	interaction (const vpImage< unsigned char > &I, const vpMatrix &LI, const vpColVector &s, vpMatrix &L)=0

virtual void	inverse (const vpColVector &s, vpImage< unsigned char > &I)=0

unsigned int	getProjectionSize () const

unsigned int	getBorder () const

void	setBorder (unsigned border)

Static Public Member Functions
static void	imageAsVector (const vpImage< unsigned char > &I, vpColVector &Ivec, unsigned border)

static void	imageAsMatrix (const vpImage< unsigned char > &I, vpMatrix &Imat, unsigned border)

Protected Attributes
unsigned	m_mappingSize

unsigned	m_border

Detailed Description

Base class for functions that map an image and its interaction matrix to a different domain.

The mapping $\mathbf{I} \rightarrow \mathbf{z}$ is done via vpLuminanceMapping::map
The projection of the interaction matrix $\mathbf{L_I} \rightarrow \mathbf{L_z}$ is performed in vpLuminanceMapping::interaction
If possible the inverse mapping (i.e., image reconstruction) is available throug vpLuminanceMapping::inverse

Definition at line 57 of file vpFeatureLuminanceMapping.h.

Constructor & Destructor Documentation

◆ vpLuminanceMapping()

vpLuminanceMapping::vpLuminanceMapping ( unsigned int mappingSize )

inline

Construct a new vp Luminance Mapping object.

Parameters

mappingSize The size of the space that this transformation maps to.

Definition at line 65 of file vpFeatureLuminanceMapping.h.

◆ ~vpLuminanceMapping()

virtual vpLuminanceMapping::~vpLuminanceMapping ( )

inlinevirtual

Destructor.

Definition at line 70 of file vpFeatureLuminanceMapping.h.

Member Function Documentation

◆ getBorder()

unsigned int vpLuminanceMapping::getBorder ( ) const

inline

Returns the number of pixels that are removed by the photometric VS computation.

Returns: space size

Examples: catchLuminanceMapping.cpp.

Definition at line 114 of file vpFeatureLuminanceMapping.h.

◆ getProjectionSize()

unsigned int vpLuminanceMapping::getProjectionSize ( ) const

inline

Returns the size of the space to which an image is mapped to.

Returns: space size

Examples: catchLuminanceMapping.cpp.

Definition at line 107 of file vpFeatureLuminanceMapping.h.

◆ imageAsMatrix()

void vpLuminanceMapping::imageAsMatrix	(	const vpImage< unsigned char > &	I,
		vpMatrix &	Imat,
		unsigned	border
	)

static

Definition at line 59 of file vpFeatureLuminanceMapping.cpp.

References vpException::dimensionError, vpImage< Type >::getHeight(), vpImage< Type >::getWidth(), and vpArray2D< Type >::resize().

Referenced by vpLuminanceDCT::map().

◆ imageAsVector()

BEGIN_VISP_NAMESPACE void vpLuminanceMapping::imageAsVector	(	const vpImage< unsigned char > &	I,
		vpColVector &	Ivec,
		unsigned	border
	)

static

Definition at line 43 of file vpFeatureLuminanceMapping.cpp.

References vpException::dimensionError, vpImage< Type >::getHeight(), vpImage< Type >::getWidth(), and vpColVector::resize().

Referenced by vpLuminancePCA::map().

◆ interaction()

virtual void vpLuminanceMapping::interaction	(	const vpImage< unsigned char > &	I,
		const vpMatrix &	LI,
		const vpColVector &	s,
		vpMatrix &	L
	)

pure virtual

Compute the interaction matrix associated with the representation s.

Parameters

I	input image used to compute s
LI	Photometric interaction matrix associated to `I` (see vpFeatureLuminance)
s	the already computed representation
L	The output interaction matrix, of dimensions getProjectionSize() x 6

Implemented in vpLuminanceDCT, and vpLuminancePCA.

◆ inverse()

virtual void vpLuminanceMapping::inverse	(	const vpColVector &	s,
		vpImage< unsigned char > &	I
	)

pure virtual

Reconstruct I from a representation s.

Parameters

s	the representation
I	Output lossy reconstruction

Implemented in vpLuminanceDCT, and vpLuminancePCA.

◆ map()

virtual void vpLuminanceMapping::map	(	const vpImage< unsigned char > &	I,
		vpColVector &	s
	)

pure virtual

Map an image I to a representation s. This representation s has getProjectionSize() rows.

Note that when combined with vpFeatureLuminanceMapping, The image I does not have the same size as the image input of vpFeatureLuminanceMapping::build. I is the center crop of this image.

Parameters