vpColorHistogram Class Reference

#include <visp3/rbt/vpColorHistogram.h>

Classes
class	Builder

Public Member Functions
	vpColorHistogram ()
	vpColorHistogram (unsigned int N)
void	setBinNumber (unsigned int N)
unsigned int	getBinNumber () const
unsigned int	getNumPixels () const
void	build (const vpImage< vpRGBa > &image, const vpImage< bool > &mask)
void	build (const std::vector< unsigned int > &counts)
void	merge (const vpColorHistogram &other, float alpha)
void	computeProbas (const vpImage< vpRGBa > &image, vpImage< float > &proba) const
void	computeProbas (const vpImage< vpRGBa > &image, vpImage< float > &proba, const vpRect &bb) const
unsigned int	colorToIndex (const vpRGBa &p) const
double	probability (const vpRGBa &color) const
double	kl (const vpColorHistogram &other) const
double	jsd (const vpColorHistogram &other) const
double	hellinger (const vpColorHistogram &other) const

Static Public Member Functions
static void	computeSplitHistograms (const vpImage< vpRGBa > &image, const vpImage< bool > &mask, vpColorHistogram &inMask, vpColorHistogram &outsideMask)
static void	computeSplitHistograms (const vpImage< vpRGBa > &image, const vpImage< bool > &mask, const vpRect &bbInside, vpColorHistogram &insideMask, vpColorHistogram &outsideMask)

Detailed Description

Definition at line 52 of file vpColorHistogram.h.

Constructor & Destructor Documentation

vpColorHistogram() [1/2]

vpColorHistogram::vpColorHistogram

(

)

Definition at line 54 of file vpColorHistogram.cpp.

vpColorHistogram() [2/2]

vpColorHistogram::vpColorHistogram

(

unsigned int

N

)

Definition at line 57 of file vpColorHistogram.cpp.

References setBinNumber().

Member Function Documentation

build() [1/2]

void vpColorHistogram::build

(

const std::vector< unsigned int > &

counts

)

Definition at line 93 of file vpColorHistogram.cpp.

References vpException::dimensionError.

build() [2/2]

void vpColorHistogram::build	(	const vpImage< vpRGBa > &	image,
		const vpImage< bool > &	mask
	)

Definition at line 75 of file vpColorHistogram.cpp.

References vpImage< Type >::bitmap, colorToIndex(), and vpImage< Type >::getSize().

Referenced by computeSplitHistograms().

colorToIndex()

unsigned int vpColorHistogram::colorToIndex ( const vpRGBa &  p ) const

inline

Definition at line 95 of file vpColorHistogram.h.

References vpRGBa::B, vpRGBa::G, and vpRGBa::R.

Referenced by build(), computeProbas(), and computeSplitHistograms().

computeProbas() [1/2]

void vpColorHistogram::computeProbas	(	const vpImage< vpRGBa > &	image,
		vpImage< float > &	proba
	)		const

Definition at line 121 of file vpColorHistogram.cpp.

References vpImage< Type >::bitmap, colorToIndex(), vpImage< Type >::getHeight(), vpImage< Type >::getSize(), vpImage< Type >::getWidth(), and vpImage< Type >::resize().

Referenced by vpColorHistogramMask::updateMask().

computeProbas() [2/2]

void vpColorHistogram::computeProbas	(	const vpImage< vpRGBa > &	image,
		vpImage< float > &	proba,
		const vpRect &	bb
	)		const

Definition at line 131 of file vpColorHistogram.cpp.

References colorToIndex(), vpRect::getBottom(), vpImage< Type >::getHeight(), vpRect::getLeft(), vpRect::getRight(), vpRect::getTop(), vpImage< Type >::getWidth(), and vpImage< Type >::resize().

computeSplitHistograms() [1/2]

void vpColorHistogram::computeSplitHistograms ( const vpImage< vpRGBa > &  image, const vpImage< bool > &  mask, const vpRect &  bbInside, vpColorHistogram &  insideMask, vpColorHistogram &  outsideMask  )

static

Definition at line 218 of file vpColorHistogram.cpp.

References vpException::badValue, vpImage< Type >::bitmap, build(), colorToIndex(), vpRect::getBottom(), vpRect::getLeft(), vpRect::getRight(), vpImage< Type >::getSize(), vpRect::getTop(), and vpImage< Type >::getWidth().

computeSplitHistograms() [2/2]

void vpColorHistogram::computeSplitHistograms ( const vpImage< vpRGBa > &  image, const vpImage< bool > &  mask, vpColorHistogram &  inMask, vpColorHistogram &  outsideMask  )

static

Definition at line 187 of file vpColorHistogram.cpp.

References vpException::badValue, vpImage< Type >::bitmap, build(), colorToIndex(), and vpImage< Type >::getSize().

Referenced by vpColorHistogramMask::updateMask().

getBinNumber()

unsigned int vpColorHistogram::getBinNumber ( ) const

inline

Definition at line 81 of file vpColorHistogram.h.

Referenced by vpColorHistogram::Builder::build().

getNumPixels()

unsigned int vpColorHistogram::getNumPixels ( ) const

inline

Definition at line 83 of file vpColorHistogram.h.

Referenced by vpColorHistogramMask::updateMask().

hellinger()

double vpColorHistogram::hellinger

(

const vpColorHistogram &

other

)

const

Definition at line 176 of file vpColorHistogram.cpp.

jsd()

double vpColorHistogram::jsd

(

const vpColorHistogram &

other

)

const

Definition at line 165 of file vpColorHistogram.cpp.

References kl().

kl()

double vpColorHistogram::kl

(

const vpColorHistogram &

other

)

const

Definition at line 151 of file vpColorHistogram.cpp.

References vpException::badValue.

Referenced by jsd().

merge()

void vpColorHistogram::merge	(	const vpColorHistogram &	other,
		float	alpha
	)

Definition at line 108 of file vpColorHistogram.cpp.

References vpException::badValue.

Referenced by vpColorHistogramMask::updateMask().

probability()

double vpColorHistogram::probability ( const vpRGBa &  color ) const

inline

Definition at line 100 of file vpColorHistogram.h.

setBinNumber()

void vpColorHistogram::setBinNumber

(

unsigned int

N

)

Change the number of bins per color component that the histogram has After calling this method, the histogram will be reset and the values will not be kept.

Parameters

N	the number of bins per RGB component: the histogram will have N^3 bins in total. N should be a power of 2 between 1 and 128

Definition at line 62 of file vpColorHistogram.cpp.

References vpException::badValue.

Referenced by vpColorHistogram().