感谢之前五位提出的攻略，但问题暂时没有得到解决。也许是我没把环境交代清楚。
我是在ubuntu22.04下安装Opencv4,希望有相同环境下运行成功的友友提供完整攻略谢谢。

可能遇到依赖包

依赖包安装

sudo apt-get install libsm6 libxrender1 libxext6
#opencv安装
pip3 install opencv-python==4.1.1.26

sudo apt install build-essential
sudo apt install cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
sudo apt install python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev
pip3 install opencv-python3

sudo apt install libjpeg-dev, libpng-dev, libtiff-dev, libjasper-dev, libdc1394-22-dev libtbb2 libtbb-dev libdc1394 2.x CUDA Toolkit 6.5

sudo apt update
sudo apt upgrade
sudo apt install build-essential
sudo apt install cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
sudo apt install python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev
pip install opencv-python==4.1.1.26

上图，提示什么？报错什么内容？

请看👉 ：Ubuntu源码编译安装opencv4.x