python3 批量压缩图片

code

import os
import cv2

def compress(dirname):
    for filename in os.listdir(dirname):
        f=os.path.join(dirname,filename)
        img=cv2.imread(f,2)
        cv2.imwrite(f,img,[cv2.IMWRITE_PNG_COMPRESSION,1])

pwd=os.getcwd()
w_path=os.path.join(pwd,"pic")
compress(w_path)