countwhi.m

用matlab编辑的实现检测两直线交点的源代码

function [n]=CountWhi(f,i,j,window);
n=0;
[h,w]=size(window);
if(i-(h-1)/2>0&j-(w-1)/2>0&j+(w-1)/2<size(f,2)&i+(h-1)/2<size(f,1))
    window=f((i-(h-1)/2):(i+(h-1)/2),(j-(w-1)/2):(j+(w-1)/2));
    n=sum(sum(window));
   
else
    n=0;
   
end