MATLAB背景的叠加

function [ output_args ] = guoyingying( )
I=imread('rice.jpg');
I=imresize(I,[512,512]);
figure;
subplot(2,2,1);
imshow(I);
title('rice');
J=imread('cameraman.bmp');
subplot(2,2,2);
imshow(J);
title('cameraman');
K=imadd(I,J,'uint16');
subplot(2,2,3);
imshow(K);
title('hei');
K2=imadd(I,J);
subplot(2,2,4);
imshow(K2,[]);
title('相加');