www.gusucode.com > Matlab脸部识别程序源码 > code/code/integral_image.m
function [ii] = integral_image(image) % [ii] = integral_image(image) % % Nathan Sutter, Fall 2007 % Last Updated, 11/14/07 %------------------------------------------------------------------------- [x y dim] = size(image); ii = zeros(x,y); s = zeros(x,y); for i=1:x for j=1:y if j-1 == 0 s(i,j) = 0 + image(i,j); else s(i,j) = s(i,j-1) + image(i,j); end if i-1 == 0 ii(i,j) = 0 + s(i,j); else ii(i,j) = ii(i-1,j) + s(i,j); end end end end