matlab修改图片大小为256,matlab批量修改图片大小

转自：http://blog.csdn.net/cike0cop/article/details/53087995

%author:coplin

%time:2016-10-10

%function:change the size of Image.

addpath('dealImg');

addpath('Img');

ListName=dir('Img\*.jpg');

[Pm,Pn]=size(ListName);

for iPm=1:1:Pm %读取文件夹所有图片循环

oriImg=imread(ListName(iPm).name); %readImg

cutImg=imcrop(oriImg,[50,50,255,255]);

%bi=imresize(oriImg,0.6); %bi缩放为ai的0.6倍

%endImg=imresize(cutImg,[256,256]); %把ai转成256x256的大小

iDealName=ListName(iPm).name;

iDealAddress='dealImg\';

iDealAll=strcat(iDealAddress,iDealName);

ID=imresize(cutImg,1);

imwrite(ID,iDealAll);

end转自：http://blog.csdn.net/wuzuyu365/article/details/78215268

%把一个目录下的图片缩放到指定大小

dpath = 'D:\tst测试工作\测试文件\清晰照片库1300张';