在 Linux 上安装 OpenCV

安装核心模块

export VERSION=4.10.0

cd ~/Downloads
wget "https://github.com/opencv/opencv/archive/refs/tags/${VERSION}.zip" -O opencv.zip
unzip opencv.zip

cd `opencv-${VERSION}` && mkdir build && cd build && rm ../CMakeCache.txt
cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr/local ..
make -j4
sudo make install

添加opencv_contrib中的模块

cd ~/Downloads
git clone https://github.com/opencv/opencv_contrib.git

cd "opencv-${VERSION}"/build
cmake -D CMAKE_BUILD_TYPE=Release -D OPENCV_EXTRA_MODULES_PATH=../../opencv_contrib/modules ..
make -j4
sudo make install

验证

ipython 
    import cv2
    print(cv2.__version__) 
    print(cv2.dnn)