# NAME

sum_sq_distance - Compute sum of square distance
# 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 sum_sq_distance
(
const Matrix *chamfer_image,
const Edge_set *tmplate,
int offset_row,
int offset_col,
double dist_bound,
double *distance_out,
size_t *point_count_out
);

# DESCRIPTION

Compute the sum of square distances distance to the between template edge points and the nearest input edge point. I.e. \sum_1^n d(e_i)^2. Compare this to chamfer distance wich is 1/n \sum_1^n d(e_i).
Image must be input as a chamfer transformed image output by chamfer_transform().
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.
dist_bound truncates overly large distances so edge pixels missing due to noise don't overly affect the distance measure. Setting dist_bound to 0 disables truncation.
Distance_out is the chamfer distance. If dist_bound > 0, the result is homogenized to [0, dist_bound]
Point_count_out is the number of edge points used to compute the distance. Useful if you'll be taking an average later on. Passing NULL ignores this argument.
# DISCLAIMER

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

Kyle Simek
# DOCUMENTER

Kobus Barnard
# SEE ALSO

chamfer_transform
,
chamfer_transform_2
,
chamfer_distance
,
oriented_sum_sq_distance
,
oriented_chamfer_distance