downsample.txt

用matlab实现多幅图片的downsample 把图片变成低分辨率的小图片。

clear all
eval(sprintf('cd %s','图片地址'));
dirlist=dir('*.tif'); 
num = length(dirlist);
for n=1:num
    a=imread(dirlist(n).name);
    fun=@(x) mean(mean(x));
    b=blkproc(a,[4,4],fun);
    c=mat2gray(b);
imwrite(c,['picture',num2str(n),'.tif']);
end