function out = imgcomp(in1,in2) rows=62; columns=150; in1=double(in1); in2=double(in2); in1=imresize(in1,[rows columns]); in2=imresize(in2,[rows columns]); answer=zeros(1,columns); for i=1:columns foo1=dot(in1(:,i),in1(:,i)); bar1=sqrt(foo1); foo2=dot(in2(:,i),in2(:,i)); bar2=sqrt(foo2); answer(i)=dot(in1(:,i)/bar1,in2(:,i)/bar2); end out=mean(answer);