tuxiangchazhisuofang.m

这么代码是用Matlab编写的

clear all;
close all;
Lena=double(imread('D:\MATLAB7\work\Lena.jpg'));
% wwww1=double(imread('C:\MATLAB6p5\work\x1.fig'));
%  figure,
% % subplot(2,2,1);
%  imshow(wwww1,[]);
%  figure,
% subplot(2,2,1);
 imshow(Lena,[]);
X1=imresize(Lena,1/2,'nearest');
figure,
% subplot(2,2,2)
imshow(X1,[]);
imwrite(X1,'wwww.jpg');
figure
wwww=double(imread('D:\MATLAB7\work\cameraman.jpg'));
imshow(wwww,[]);

% wwww=zeros(size(X1));
X2=imresize(Lena,1/2,'bilinear');
figure,
% subplot(2,2,3)
imshow(X2,[]);
X3=imresize(Lena,1/2,'bicubic');
figure,
% subplot(2,2,4)
imshow(X3,[]);