NAME

oriented_chamfer_distance - Find distance using chamfer metric

SYNOPSIS

#include "g/g_chamfer.h"

Example compile flags (system dependent):
  -DLINUX_X86_64 -DLINUX_X86_64_OPTERON  -DGNU_COMPILER 
   -I/home/kobus/include
   -L/home/kobus/misc/load/linux_x86_64_opteron -L/usr/lib/x86_64-linux-gnu
  -lKJB                               -lfftw3  -lgsl -lgslcblas -ljpeg  -lSVM -lstdc++                    -lpthread -lSLATEC -lg2c    -lacml -lacml_mv -lblas -lg2c      -lncursesw 


int oriented_chamfer_distance
(
	Edge_point const ***image_edge_map,
	int num_rows,
	int num_cols,
	const Edge_set *tmplate,
	int offset_row,
	int offset_col,
	double *distance,
	size_t *point_count_out
);

PARAMETERS

int num_rows: rows of image_edge_map
int num_cols: columns of image_edge_map
int offset_row: top of template
int offset_col: left edge of template
double *distance: output chamfer distance

DESCRIPTION

Compute the oriented chamfer distance between an input image and an edge template, as described in Shotton, Blake, Cipolla 08, but using the absolute value of the cosine of the difference between the two angles, instead of the absolute difference. Image must be input as a matrix of Edge_point pointers to the nearest edge point at each position. This is output by chamfer_transform_2. num_rows and num_cols describes the size of image_edge_map Template must be input as an Edge_point linked list like that output by detect_edge_points. Offset_{x,y} is the position of the top-left of the template. Distance_out is the computed chamfer distance.

DISCLAIMER

This software is not adequatedly tested. It is recomended that results are checked independantly where appropriate.

AUTHOR

Kyle Simek

DOCUMENTER

Kobus Barnard