'NoneType' object is not subscriptable报错求助

神秘的帅哥

from PIL import Image, ImageDraw, ImageFont
import cv2
import os

def draw(pic):
    img = cv2.imread('pic/' + pic)
    img = img[:, :, (2, 1, 0)]

    blank = Image.new("RGB", [len(img[0]), len(img)], "white")
    drawObj = ImageDraw.Draw(blank)

    n = 10

    font = ImageFont.truetype('C:/Windows/Fonts/Microsoft YaHei UI/msyhbd.ttc', size = n - 1)

    for i in range(0, len(img), n):
        for j in range(0, len(img[i]), n):
            text = '武汉加油'
            drawObj.ink = img[i][j][0] + img[i][j][1] * 256 + img[i][j][2] * 256 * 256
            drawObj.text([j, i], text[int(j / n) % len(text)], font=font)
            print('完成处理——', i, j)

    blank.save('new/new_' + pic, 'jpeg')


filelist = os.listdir('pic')
for file in filelist:
    draw(file)

代码运行后报错

Traceback (most recent call last):
  File "D:/PyCharm/PycharmProjects/樱花/cv_3.py", line 28, in <module>
    draw(file)
  File "D:/PyCharm/PycharmProjects/樱花/cv_3.py", line 7, in draw
    img = img[:, :, (2, 1, 0)]
TypeError: 'NoneType' object is not subscriptable

求助大神如何解决

墨羽岚

https://blog.csdn.net/qq_39742013/article/details/81986735

神秘的帅哥

墨羽岚 发表于 2020-3-19 10:34
https://blog.csdn.net/qq_39742013/article/details/81986735

我这个代码改怎么修改呢    不是很懂

墨羽岚

神秘的帅哥 发表于 2020-3-19 10:50
我这个代码改怎么修改呢    不是很懂

其实我也不懂你去网上多搜搜吧，我看有挺多例子的