安装opencv
pip install opencv-python
(mytest) D:\UI\mytest>pip install opencv-python
Looking in indexes: http://pypi.douban.com/simple, http://mirrors.aliyun.com/pypi/simple/, http://pypi.douban.com/simple, http://pypi.mirrors.ustc.edu.cn/simple/
Collecting opencv-python
Using cached https://mirrors.bfsu.edu.cn/pypi/web/packages/36/98/fab8d982e2e2b57bdebcad64c7e5b5a14ac91c657cac509b9cf3fbea49d2/opencv_python-4.7.0.72-cp37-abi3-win_amd64.whl (38.2 MB)
Requirement already satisfied: numpy>=1.21.2 in d:\ui\venv\mytest\lib\site-packages (from opencv-python) (1.25.0)
Installing collected packages: opencv-python
Successfully installed opencv-python-4.7.0.72
[notice] A new release of pip is available: 23.0.1 -> 23.1.2
[notice] To update, run: python.exe -m pip install --upgrade pip
导入cv2库
import cv2
调用cv2中的函数
发现cv2中没有函数可用，此时打开cv2所在的文件夹，
找到cv2.pyd文件，复制到所用python环境中的site-packages文件夹中
关闭项目工程文件重新打开，就可以调用cv2中的函数了。文章来源：https://www.toymoban.com/news/detail-773889.html
文章来源地址https://www.toymoban.com/news/detail-773889.html
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