mser.c File Reference

MSER - Definition. More...

#include "mser.h"
#include <stdlib.h>
#include <string.h>
#include <assert.h>

Functions
void	adv (int ndims, int const *dims, int *subs)
	Advance N-dimensional subscript.
vl_uint	climb (VlMserReg *r, vl_uint idx)
	Climb the region forest to reach aa root.
VlMserFilt *	vl_mser_new (int ndims, int const *dims)
	Create a new MSER filter.
void	vl_mser_delete (VlMserFilt *f)
	Delete MSER filter.
void	vl_mser_process (VlMserFilt *f, vl_mser_pix const *im)
	Process image.
void	vl_mser_ell_fit (VlMserFilt *f)
	Fit ellipsoids.

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Detailed Description

Author:

Andrea Vedaldi

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Function Documentation

void adv ( int  ndims, int const *  dims, int *  subs  )

inline

The function increments by one the subscript subs indexing an array the ndims dimensions dims.

Parameters:

ndims	number of dimensions.
dims	dimensions.
subs	subscript to advance.

vl_uint climb ( VlMserReg *  r, vl_uint  idx  )

inline

The function climbs the regions forest r starting from the node idx to the corresponding root.

To speed-up the operation, the function uses the VlMserReg::shortcut field to quickly jump to the root. After the root is reached, all the used shortcut are updated.

Parameters:

r	regions' forest.
idx	stating node.

Returns:

index of the reached root.

void vl_mser_delete

(

VlMserFilt *

f

)

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

Parameters:

f	MSER filter to be deleted.

void vl_mser_ell_fit

(

VlMserFilt *

f

)

Parameters:

f	MSER filter.

See also:

Ellipsoids

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.

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.