#include <SteerableViewMap.h>

Public Member Functions
	SteerableViewMap (unsigned int nbOrientations=4)

	SteerableViewMap (const SteerableViewMap &iBrother)

virtual	~SteerableViewMap ()

virtual void	Reset ()

double *	AddFEdge (FEdge *iFEdge)

double	ComputeWeight (const Vec2d &dir, unsigned iNOrientation)

unsigned	getSVMNumber (Vec2f dir)

unsigned	getSVMNumber (unsigned id)

void	buildImagesPyramids (GrayImage **steerableBases, bool copy=false, unsigned iNbLevels=4, float iSigma=1.0f)

float	readSteerableViewMapPixel (unsigned iOrientation, int iLevel, int x, int y)

float	readCompleteViewMapPixel (int iLevel, int x, int y)

unsigned int	getNumberOfPyramidLevels () const

unsigned int	getNumberOfOrientations () const

void	saveSteerableViewMap () const

Protected Member Functions
void	Clear ()

void	Build ()

Protected Attributes
map< unsigned int, double * >	_mapping

unsigned	_nbOrientations

ImagePyramid **	_imagesPyramids

double	_bound

vector< Vec2d >	_directions

Detailed Description

This class checks for every FEdge in which steerable it belongs and stores the mapping allowing to retrieve this information from the FEdge Id.

Definition at line 48 of file SteerableViewMap.h.

Constructor & Destructor Documentation

◆ SteerableViewMap() [1/2]

Freestyle::SteerableViewMap::SteerableViewMap ( unsigned int nbOrientations = 4 )

Definition at line 43 of file SteerableViewMap.cpp.

References KDL::cos(), M_PI, and KDL::sin().

◆ SteerableViewMap() [2/2]

Freestyle::SteerableViewMap::SteerableViewMap ( const SteerableViewMap & iBrother )

Definition at line 61 of file SteerableViewMap.cpp.

References _bound, _directions, _imagesPyramids, _mapping, and _nbOrientations.

◆ ~SteerableViewMap()

Freestyle::SteerableViewMap::~SteerableViewMap ( )

virtual

Definition at line 76 of file SteerableViewMap.cpp.

Member Function Documentation

◆ AddFEdge()

double * Freestyle::SteerableViewMap::AddFEdge ( FEdge * iFEdge )

Adds a FEdge to steerable VM. Returns the nbOrientations weights corresponding to the FEdge contributions to the nbOrientations directional maps.

Definition at line 122 of file SteerableViewMap.cpp.

References Freestyle::Id::getFirst(), Freestyle::FEdge::getId(), id, norm(), Freestyle::VecMat::Vec< T, N >::norm(), Freestyle::FEdge::orientation2d(), Freestyle::VecMat::Vec3< T >::x(), and Freestyle::VecMat::Vec3< T >::y().

Referenced by Freestyle::Controller::ComputeSteerableViewMap().

◆ Build()

void Freestyle::SteerableViewMap::Build ( )

protected

Definition at line 54 of file SteerableViewMap.cpp.

◆ buildImagesPyramids()

void Freestyle::SteerableViewMap::buildImagesPyramids	(	GrayImage **	steerableBases,
		bool	copy = `false`,
		unsigned	iNbLevels = `4`,
		float	iSigma = `1.0f`
	)

Builds _nbOrientations+1 pyramids of images from the _nbOrientations+1 base images of the steerable viewmap.

Parameters

steerableBases	The _nbOrientations+1 images constituting the basis for the steerable pyramid.
copy	If false, the data is not duplicated, and Canvas deals with the memory management of these _nbOrientations+1 images. If true, data is copied, and it's up to the caller to delete the images.
iNbLevels	The number of levels desired for each pyramid. If iNbLevels == 0, the complete pyramid is built.
iSigma	The sigma that will be used for the gaussian blur

Definition at line 188 of file SteerableViewMap.cpp.

References copy().

Referenced by Freestyle::Controller::ComputeSteerableViewMap().

◆ Clear()

void Freestyle::SteerableViewMap::Clear ( )

protected

Definition at line 81 of file SteerableViewMap.cpp.

◆ ComputeWeight()

double Freestyle::SteerableViewMap::ComputeWeight	(	const Vec2d &	dir,
		unsigned	iNOrientation
	)

Compute the weight of direction dir for orientation iNOrientation

Definition at line 109 of file SteerableViewMap.cpp.

References KDL::acos(), KDL::cos(), and fabs().

◆ getNumberOfOrientations()

unsigned int Freestyle::SteerableViewMap::getNumberOfOrientations ( ) const

inline

Returns the number of orientations

Definition at line 140 of file SteerableViewMap.h.

Referenced by Freestyle::Controller::displayDensityCurves().

◆ getNumberOfPyramidLevels()

unsigned int Freestyle::SteerableViewMap::getNumberOfPyramidLevels ( ) const

Returns the number of levels in the pyramids

Definition at line 232 of file SteerableViewMap.cpp.

Referenced by Freestyle::Controller::displayDensityCurves().

◆ getSVMNumber() [1/2]

unsigned Freestyle::SteerableViewMap::getSVMNumber ( unsigned id )

Returns the number of the SVM to which a FEdge belongs most.

Parameters

id	The First element of the Id struct of the FEdge we're interested in.

Definition at line 169 of file SteerableViewMap.cpp.

References w().

◆ getSVMNumber() [2/2]

unsigned Freestyle::SteerableViewMap::getSVMNumber ( Vec2f dir )

Returns the number of the SVM to which a direction belongs to.

Parameters

dir	The direction

Definition at line 149 of file SteerableViewMap.cpp.

References norm(), Freestyle::VecMat::Vec< T, N >::norm(), and w().

Referenced by Freestyle::Functions1D::GetSteerableViewMapDensityF1D::operator()().

◆ readCompleteViewMapPixel()

float Freestyle::SteerableViewMap::readCompleteViewMapPixel	(	int	iLevel,
		int	x,
		int	y
	)

Reads a pixel in the one of the level of the pyramid containing the images of the complete ViewMap. Returns a value between 0 and 1. Equivalent to : readSteerableViewMapPixel(nbOrientations, x, y)

Definition at line 227 of file SteerableViewMap.cpp.

References Freestyle::x, and y.

Referenced by Freestyle::Functions0D::ReadCompleteViewMapPixelF0D::operator()(), Freestyle::Functions0D::GetViewMapGradientNormF0D::operator()(), and Freestyle::ContextFunctions::ReadCompleteViewMapPixelCF().

◆ readSteerableViewMapPixel()

float Freestyle::SteerableViewMap::readSteerableViewMapPixel	(	unsigned	iOrientation,
		int	iLevel,
		int	x,
		int	y
	)

Reads a pixel value in one of the VewMap density steerable pyramids. Returns a value between 0 and 1.

Parameters

iOrientation	the number telling which orientation we need to check. There are _nbOrientations+1 oriented ViewMaps: 0 -> the ViewMap containing every horizontal lines 1 -> the ViewMap containing every lines whose orientation is around PI/4 2 -> the ViewMap containing every vertical lines 3 -> the ViewMap containing every lines whose orientation is around 3PI/4 4 -> the complete ViewMap
iLevel	The level of the pyramid we want to read
x	The abscissa of the desired pixel specified in level0 coordinate system. The origin is the lower left corner.
y	The ordinate of the desired pixel specified in level0 coordinate system. The origin is the lower left corner.

Definition at line 206 of file SteerableViewMap.cpp.

References G, G_DEBUG_FREESTYLE, Freestyle::ImagePyramid::height(), Freestyle::ImagePyramid::pixel(), v, Freestyle::ImagePyramid::width(), Freestyle::x, and y.

Referenced by Freestyle::Controller::displayDensityCurves(), Freestyle::Functions0D::ReadSteerableViewMapPixelF0D::operator()(), Freestyle::Functions1D::GetSteerableViewMapDensityF1D::operator()(), and Freestyle::ContextFunctions::ReadDirectionalViewMapPixelCF().

◆ Reset()

void Freestyle::SteerableViewMap::Reset ( )

virtual

Resets everything

Definition at line 103 of file SteerableViewMap.cpp.

Referenced by Freestyle::Controller::ComputeSteerableViewMap().

◆ saveSteerableViewMap()

void Freestyle::SteerableViewMap::saveSteerableViewMap ( ) const

for debug purposes

Definition at line 240 of file SteerableViewMap.cpp.

References Freestyle::c, ImBuf::ftype, Freestyle::FrsImage::height(), IB_rect, IMB_allocImBuf(), IMB_FTYPE_PNG, IMB_saveiff(), Freestyle::GrayImage::pixel(), ImBuf::rect, Freestyle::FrsImage::width(), Freestyle::x, and y.

Referenced by Freestyle::Controller::saveSteerableViewMapImages().

Member Data Documentation

◆ _bound

double Freestyle::SteerableViewMap::_bound

protected

Definition at line 57 of file SteerableViewMap.h.

Referenced by SteerableViewMap().

◆ _directions

vector<Vec2d> Freestyle::SteerableViewMap::_directions

protected

Definition at line 58 of file SteerableViewMap.h.

Referenced by SteerableViewMap().

◆ _imagesPyramids

ImagePyramid** Freestyle::SteerableViewMap::_imagesPyramids

protected

Definition at line 54 of file SteerableViewMap.h.

Referenced by SteerableViewMap().

◆ _mapping

map<unsigned int, double *> Freestyle::SteerableViewMap::_mapping

protected

Definition at line 52 of file SteerableViewMap.h.

Referenced by SteerableViewMap().

◆ _nbOrientations

unsigned Freestyle::SteerableViewMap::_nbOrientations

protected

Definition at line 53 of file SteerableViewMap.h.

Referenced by SteerableViewMap().

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

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ SteerableViewMap() [1/2]

◆ SteerableViewMap() [2/2]

◆ ~SteerableViewMap()

Member Function Documentation

◆ AddFEdge()

◆ Build()

◆ buildImagesPyramids()

◆ Clear()

◆ ComputeWeight()

◆ getNumberOfOrientations()

◆ getNumberOfPyramidLevels()

◆ getSVMNumber() [1/2]

◆ getSVMNumber() [2/2]

◆ readCompleteViewMapPixel()

◆ readSteerableViewMapPixel()

◆ Reset()

◆ saveSteerableViewMap()

Member Data Documentation

◆ _bound

◆ _directions

◆ _imagesPyramids

◆ _mapping

◆ _nbOrientations