Question

我尝试使用opencv按照以下代码裁剪图像：

import cv2
import numpy as np
import csv
path_image= '/home/'
img=cv2.imread(path_image+"image1.png")
img1=img[40:102,2442:2448]

但是我执行了一个错误：

 img1=img[40:102,2442:2448]

  File "<stdin>", line 1, in <module>
TypeError: 'NoneType' object has no attribute '__getitem__'

Answer 1

img=cv2.imread(os.path.join(path_image,'image1.png'))