MSER (Maximally Stable Extremal Regions (MSER)) More...

#include "generic.h"

Data Structures
struct	VlMserStats
	MSER filter statistics definition. More...

struct	VlMserReg
	MSER: basic region (declaration) More...

struct	VlMserExtrReg
	MSER: extremal region (declaration) More...

struct	VlMserFilt
	MSER filter. More...

Macros
#define	VL_MSER_PIX_MAXVAL 256
	Maximum value. More...

#define	VL_MSER_VOID_NODE ((1ui64<<32) - 1)
	Basic region flag: null region. More...

Typedefs
typedef vl_uint8	vl_mser_pix
	MSER image data type. More...

typedef float	vl_mser_acc
	MSER accumulator data type. More...

Functions
Construction and Destruction
VlMserFilt *	vl_mser_new (int ndims, int const *dims)
	Create a new MSER filter. More...

void	vl_mser_delete (VlMserFilt *f)
	Delete MSER filter. More...

Processing
void	vl_mser_process (VlMserFilt f, vl_mser_pix const im)
	Process image. More...

void	vl_mser_ell_fit (VlMserFilt *f)
	Fit ellipsoids. More...

Retrieving data
vl_uint	vl_mser_get_regions_num (VlMserFilt const *f)
	Get number of maximally stable extremal regions. More...

vl_uint const *	vl_mser_get_regions (VlMserFilt const *f)
	Get maximally stable extremal regions. More...

float const *	vl_mser_get_ell (VlMserFilt const *f)
	Get ellipsoids. More...

vl_uint	vl_mser_get_ell_num (VlMserFilt const *f)
	Get number of ellipsoids. More...

vl_uint	vl_mser_get_ell_dof (VlMserFilt const *f)
	Get number of degrees of freedom of ellipsoids. More...

VlMserStats const *	vl_mser_get_stats (VlMserFilt const *f)
	Get statistics. More...

Retrieving parameters
vl_mser_pix	vl_mser_get_delta (VlMserFilt const *f)
	Get delta. More...

double	vl_mser_get_min_area (VlMserFilt const *f)
	Get minimum region area. More...

double	vl_mser_get_max_area (VlMserFilt const *f)
	Get maximum region area. More...

double	vl_mser_get_max_variation (VlMserFilt const *f)
	Get maximum region variation. More...

double	vl_mser_get_min_diversity (VlMserFilt const *f)
	Get minimum diversity. More...

Setting parameters
void	vl_mser_set_delta (VlMserFilt *f, vl_mser_pix x)
	Set delta. More...

void	vl_mser_set_min_area (VlMserFilt *f, double x)
	Set minimum region area. More...

void	vl_mser_set_max_area (VlMserFilt *f, double x)
	Set maximum region area. More...

void	vl_mser_set_max_variation (VlMserFilt *f, double x)
	Set maximum region variation. More...

void	vl_mser_set_min_diversity (VlMserFilt *f, double x)
	Set minimum diversity. More...

Detailed Description

Author: Andrea Vedaldi

Macro Definition Documentation

◆ VL_MSER_PIX_MAXVAL

#define VL_MSER_PIX_MAXVAL 256

Maximum value of the integer type vl_mser_pix.

◆ VL_MSER_VOID_NODE

#define VL_MSER_VOID_NODE ((1ui64<<32) - 1)

Typedef Documentation

◆ vl_mser_acc

typedef float vl_mser_acc

This is a large integer type. It should be large enough to contain a number equal to the area (volume) of the image by the image width by the image height (for instance, if the image is a square of side 256, the maximum value is 256 x 256 x 256).

◆ vl_mser_pix

typedef vl_uint8 vl_mser_pix

This is the data type of the image pixels. It has to be an integer.

Function Documentation

◆ vl_mser_delete()

void vl_mser_delete ( VlMserFilt * f )

The function releases the MSER filter f and all its resources.

Parameters

f	MSER filter to be deleted.

◆ vl_mser_ell_fit()

void vl_mser_ell_fit ( VlMserFilt * f )

Parameters

f	MSER filter.

See also: Ellipsoids

◆ vl_mser_get_delta()

vl_mser_pix vl_mser_get_delta ( VlMserFilt const * f )

inline

Parameters

f	MSER filter.

Returns: value of delta.

◆ vl_mser_get_ell()

float const * vl_mser_get_ell ( VlMserFilt const * f )

inline

Parameters

f	MSER filter.

Returns: ellipsoids.

◆ vl_mser_get_ell_dof()

vl_uint vl_mser_get_ell_dof ( VlMserFilt const * f )

inline

Parameters

f	MSER filter.

Returns: number of degrees of freedom.

◆ vl_mser_get_ell_num()

vl_uint vl_mser_get_ell_num ( VlMserFilt const * f )

inline

Parameters

f	MSER filter.

Returns: number of ellipsoids

◆ vl_mser_get_max_area()

double vl_mser_get_max_area ( VlMserFilt const * f )

inline

Parameters

f	MSER filter.

Returns: maximum region area.

◆ vl_mser_get_max_variation()

double vl_mser_get_max_variation ( VlMserFilt const * f )

inline

Parameters

f	MSER filter.

Returns: maximum region variation.

◆ vl_mser_get_min_area()

double vl_mser_get_min_area ( VlMserFilt const * f )

inline

Parameters

f	MSER filter.

Returns: minimum region area.

◆ vl_mser_get_min_diversity()

double vl_mser_get_min_diversity ( VlMserFilt const * f )

inline

Parameters

f	MSER filter.

Returns: value of minimum diversity.

◆ vl_mser_get_regions()

vl_uint const * vl_mser_get_regions ( VlMserFilt const * f )

inline

Parameters

f	MSER filter.

Returns: array of MSER pivots.

◆ vl_mser_get_regions_num()

vl_uint vl_mser_get_regions_num ( VlMserFilt const * f )

inline

Parameters

f	MSER filter.

Returns: number of MSERs.

◆ vl_mser_get_stats()

VlMserStats const * vl_mser_get_stats ( VlMserFilt const * f )

inline

Parameters

f	MSER filter.

Returns: statistics.

◆ vl_mser_new()

VlMserFilt* vl_mser_new	(	int	ndims,
		int const *	dims
	)

Initializes a new MSER filter for images of the specified dimensions. Images are ndims -dimensional arrays of dimensions dims.

Parameters

ndims	number of dimensions.
dims	dimensions.

◆ vl_mser_process()

void vl_mser_process	(	VlMserFilt *	f,
		vl_mser_pix const *	im
	)

The functions calculates the Maximally Stable Extremal Regions (MSERs) of image im using the MSER filter f.

The filter f must have been initialized to be compatible with the dimensions of im.

Parameters

f	MSER filter.
im	image data.

◆ vl_mser_set_delta()

void vl_mser_set_delta	(	VlMserFilt *	f,
		vl_mser_pix	x
	)

inline

Parameters

f	MSER filter.
x	value of `delta`.

◆ vl_mser_set_max_area()

void vl_mser_set_max_area	(	VlMserFilt *	f,
		double	x
	)

inline

Parameters

f	MSER filter.
x	maximum region area.

◆ vl_mser_set_max_variation()

void vl_mser_set_max_variation	(	VlMserFilt *	f,
		double	x
	)

inline

Parameters

f	MSER filter.
x	maximum region variation.

◆ vl_mser_set_min_area()

void vl_mser_set_min_area	(	VlMserFilt *	f,
		double	x
	)

inline

Parameters

f	MSER filter.
x	minimum region area.

◆ vl_mser_set_min_diversity()

void vl_mser_set_min_diversity	(	VlMserFilt *	f,
		double	x
	)

inline

Parameters

f	MSER filter.
x	value of `minimum` diversity.

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Data Structures

Macros

Typedefs

Functions

Detailed Description

Macro Definition Documentation

◆ VL_MSER_PIX_MAXVAL

◆ VL_MSER_VOID_NODE

Typedef Documentation

◆ vl_mser_acc

◆ vl_mser_pix

Function Documentation

◆ vl_mser_delete()

◆ vl_mser_ell_fit()

◆ vl_mser_get_delta()

◆ vl_mser_get_ell()

◆ vl_mser_get_ell_dof()

◆ vl_mser_get_ell_num()

◆ vl_mser_get_max_area()

◆ vl_mser_get_max_variation()

◆ vl_mser_get_min_area()

◆ vl_mser_get_min_diversity()

◆ vl_mser_get_regions()

◆ vl_mser_get_regions_num()

◆ vl_mser_get_stats()

◆ vl_mser_new()

◆ vl_mser_process()

◆ vl_mser_set_delta()

◆ vl_mser_set_max_area()

◆ vl_mser_set_max_variation()

◆ vl_mser_set_min_area()

◆ vl_mser_set_min_diversity()