VlSiftFilt Struct Reference

SIFT filter. More...

#include <sift.h>

Data Fields
double	sigman
double	sigma0
double	sigmak
double	dsigma0
int	width
int	height
int	O
int	S
int	o_min
int	s_min
int	s_max
int	o_cur
vl_sift_pix *	temp
vl_sift_pix *	octave
vl_sift_pix *	dog
int	octave_width
int	octave_height
vl_sift_pix *	gaussFilter
double	gaussFilterSigma
vl_size	gaussFilterWidth
VlSiftKeypoint *	keys
int	nkeys
int	keys_res
double	peak_thresh
double	edge_thresh
double	norm_thresh
double	magnif
double	windowSize
vl_sift_pix *	grad
int	grad_o

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Detailed Description

This filter implements the SIFT detector and descriptor.

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Field Documentation

vl_sift_pix* VlSiftFilt::dog

current DoG data.

double VlSiftFilt::dsigma0

delta-smoothing.

double VlSiftFilt::edge_thresh

edge threshold.

vl_sift_pix* VlSiftFilt::gaussFilter

current Gaussian filter

double VlSiftFilt::gaussFilterSigma

current Gaussian filter std

vl_size VlSiftFilt::gaussFilterWidth

current Gaussian filter width

vl_sift_pix* VlSiftFilt::grad

GSS gradient data.

int VlSiftFilt::grad_o

GSS gradient data octave.

int VlSiftFilt::height

image height.

VlSiftKeypoint* VlSiftFilt::keys

detected keypoints.

int VlSiftFilt::keys_res

size of the keys buffer.

double VlSiftFilt::magnif

magnification factor.

int VlSiftFilt::nkeys

number of detected keypoints.

double VlSiftFilt::norm_thresh

norm threshold.

int VlSiftFilt::O

number of octaves.

int VlSiftFilt::o_cur

current octave.

int VlSiftFilt::o_min

minimum octave index.

vl_sift_pix* VlSiftFilt::octave

current GSS data.

int VlSiftFilt::octave_height

current octave height.

int VlSiftFilt::octave_width

current octave width.

double VlSiftFilt::peak_thresh

peak threshold.

int VlSiftFilt::S

number of levels per octave.

int VlSiftFilt::s_max

maximum level index.

int VlSiftFilt::s_min

minimum level index.

double VlSiftFilt::sigma0

smoothing of pyramid base.

double VlSiftFilt::sigmak

k-smoothing

double VlSiftFilt::sigman

nominal image smoothing.

vl_sift_pix* VlSiftFilt::temp

temporary pixel buffer.

int VlSiftFilt::width

image width.

double VlSiftFilt::windowSize

size of Gaussian window (in spatial bins)

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The documentation for this struct was generated from the following file:

• sift.h