resize整个文件夹里的图片

# coding = utf-8
import Image
import os

def convert(dir,width,height):
    file_list = os.listdir(dir)
    print(file_list)
    for filename in file_list:
        path = ''
        path = dir+filename
        im = Image.open(path)
        out = im.resize((256,256),Image.ANTIALIAS)
        print "%s has been resized!"%filename
        out.save(path)
    
if __name__ == '__main__':
   dir = raw_input('please input the operate dir:')
   convert(dir,256,256)

 

注意点：服务器性能所限，要将500*500数据集resize到256*256。