lbp.h File Reference

Local Binary Patterns (LBP) descriptor (Local Binary Patterns (LBP) descriptor) More...

#include "generic.h"

Data Structures
struct	VlLbp
	Local Binary Pattern extractor. More...

Enumerations
enum	VlLbpMappingType { VlLbpUniform }
	Type of quantization for the LBP descriptors. More...

Functions
VlLbp *	vl_lbp_new (VlLbpMappingType type, vl_bool transposed)
	Create a new LBP object. More...
void	vl_lbp_delete (VlLbp *self)
	Delete VlLbp object. More...
void	vl_lbp_process (VlLbp *self, float *features, float *image, vl_size width, vl_size height, vl_size cellSize)
	Extract LBP features. More...
vl_size	vl_lbp_get_dimension (VlLbp *self)
	Get the dimension of the LBP histograms. More...

Detailed Description

Author

Andrea Vedaldi

Enumeration Type Documentation

VlLbpMappingType

enum VlLbpMappingType

See also

Quantized LBP

Enumerator
VlLbpUniform	Uniform local binary patterns.

Function Documentation

vl_lbp_delete()

void vl_lbp_delete

(

VlLbp *

self

)

Parameters

self	object to delete.

vl_lbp_get_dimension()

vl_size vl_lbp_get_dimension

(

VlLbp *

self

)

Returns

dimension of the LBP histograms. The dimension depends on the type of quantization used.

See also

vl_lbp_new().

vl_lbp_new()

VlLbp* vl_lbp_new	(	VlLbpMappingType	type,
		vl_bool	transposed
	)

Parameters

type	type of LBP features.
transposed	if true, then transpose each LBP pattern.

Returns

new VlLbp object instance.

vl_lbp_process()

void vl_lbp_process	(	VlLbp *	self,
		float *	features,
		float *	image,
		vl_size	width,
		vl_size	height,
		vl_size	cellSize
	)

Parameters

self	LBP object.
features	buffer to write the features to.
image	image.
width	image width.
height	image height.
cellSize	size of the LBP cells.

features is a numColumns x numRows x dimension where dimension is the dimension of a LBP feature obtained from vl_lbp_get_dimension, numColumns is equal to floor(width / cellSize), and similarly for numRows.