centroid.m

A set of functions to calculate Hu s seven invariant moments. Good accuracy. Written for my Project

function [cx, cy] = centroid(img)
% calculate the centroid of a binary image
% img - binary image
% cx, cy - centroid
m00 = sum(sum(img));
m = moment(img, [1 0], [0 1]);
cx = m(1)/m00;
cy = m(2)/m00;
return