normalized_moment.m

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

function [m] = normalized_moment(img, p, q)
% calculate the regular  normalized moment of a binary image with order p, q
% fig - image
% p, q - order
m00 = sum(sum(img));
mpq = central_moment(img, p, q);
m = mpq./(m00.^((p+q+2)/2));
return