vscode中opencv导入图片提示错误error 215 is not subscriptable has no attribute ‘shape‘等

错误为

error: (-215:Assertion failed) !_src.empty() in function 'cv::cvtColor'

解决方法

1. 网上的解答是说图片路径有问题，所以将图片路径改为绝对路径

   ‘D:\appdata\vscode\python\ph.jpg’

   完整程序为

    import numpy as np
    import cv2
    img=cv2.imread('D:\\appdata\\vscode\\python\\ph.jpg',cv2.IMREAD_UNCHANGED)
    cv2.namedWindow('img',cv2.WINDOW_AUTOSIZE)
    cv2.imshow('img',img)
    cv2.waitKey(0)
   

2. 修改vscode的路径搜索方式。在launch.json中python的configuration下添加

            {
        "name": "Python: 当前文件",
        "type": "python",
        "request": "launch",
        "program": "${file}",
        "cwd": "${fileDirname}",//是我是我看看我
        "console": "integratedTerminal",
        "justMyCode": true, 
    },
   

   划重点！！！如果是用的 coderuner的话，需要在设置中搜索File Directory As Cwd，勾选确定

参考文章
https://blog.csdn.net/sumaliqinghua/article/details/90404173
https://zhuanlan.zhihu.com/p/159435958