linux编译安装opencvpython

安装OpenCV-Python需要先安装OpenCV和Python，以下是在Linux下编译安装OpenCV和Python的步骤：

1. 安装必要的依赖库

sudo apt-get update
sudo apt-get install build-essential cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
sudo apt-get install python3.6-dev python3-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libdc1394-22-dev

2. 下载OpenCV源代码

git clone https://github.com/opencv/opencv.git
cd opencv
git checkout 4.5.1

3. 编译并安装OpenCV

mkdir build
cd build
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..
make -j4
sudo make install

4. 安装Python

sudo apt-get install python3

5. 安装pip

sudo apt-get install python3-pip

6. 安装OpenCV-Python

pip3 install opencv-python

安装完成后，可以在Python中导入cv2模块并使用OpenCV-Python库。