文件夹是用来保存文件的夹子_如何打开一个文件夹下所有子文件夹的图片?

from PIL import Image
import os
import cv2
imgdir1 = "G:\IR_IMAGE"
imgdir2 = os.listdir(imgdir1)
n = 1
for dir2 in imgdir2:
    imgdir2 = imgdir1 + "\" + dir2
    dirs2 = os.listdir(imgdir2)
    for dir3 in dirs2:
        imgdir3 = imgdir2 + "\" + dir3
        dirs3 = os.listdir(imgdir3)
        for dir4 in dirs3:
            imgdir4 = imgdir3 + "\" + dir4
            dirs4 = os.listdir(imgdir4)
            IMG = []
            for path in dirs4:
                IMG.append(path)
            for i in range(11):                #11是文件夹中要提取前11个图片
                img = imgdir4 + "\" + IMG[i+11]
                print(img)
                imgs = cv2.imread(img)
                cv2.imwrite("G:\Face\y\y" + str(n) + ".bmp" , imgs)
                n = n+1

python菜鸟第一次写博客，记录下平时遇到的问题。