利用opencv读取图片，重命名。

# -*- coding: utf-8 -*-
"""
Spyder Editor
hgh
"""

import os
import cv2

path_img = r'/images'

dirs = os.listdir(path_img)
os.chdir(path_img)

try:
    os.mkdir('rename')
except:
    pass

count = 0
for img in dirs:
    img = cv2.imread(img, 1)
    Str = "%06d"% count
    path = os.path.join('rename', Str + '.jpg')
    cv2.imwrite(path, img)
    count +=1