opencv

Ubuntu 22.04 Opencv 安装（不推荐）

apt update
apt install libopencv-dev

OpenCV 编译安装

mkdir opencv_build && cd opencv_build

到 gitee 下载 opencv 和 opencv_contrib
https://gitee.com/scc1037606/opencv
https://gitee.com/scc1037606/opencv_contrib

apt install -y cmake

apt-get install build-essential cmake git pkg-config libgtk-3-dev libavcodec-dev libavformat-dev libswscale-dev libv4l-dev libxvidcore-dev libx264-dev libjpeg-dev libpng-dev libtiff-dev gfortran openexr libatlas-base-dev python3-dev python3-numpy libtbb2 libtbb-dev -y

apt install build-essential cmake git pkg-config libgtk-3-dev \
libavcodec-dev libavformat-dev libswscale-dev libv4l-dev \
libxvidcore-dev libx264-dev libjpeg-dev libpng-dev libtiff-dev \
gfortran openexr libatlas-base-dev python3-dev python3-numpy \
libtbb2 libtbb-dev libdc1394-22-dev libopenexr-dev \
libgstreamer-plugins-base1.0-dev libgstreamer1.0-dev

cd opencv-4.5.5/
mkdir -p build && cd build
cmake -D CMAKE_BUILD_TYPE=RELEASE \
-D CMAKE_INSTALL_PREFIX=/usr/local \
-D INSTALL_C_EXAMPLES=OFF \
-D INSTALL_PYTHON_EXAMPLES=OFF \
-D OPENCV_GENERATE_PKGCONFIG=ON \
-D OPENCV_EXTRA_MODULES_PATH=/opt/opencv_build/opencv_contrib-4.5.5/modules \
-D BUILD_EXAMPLES=ON ..


make -j$(nproc)           # 编译(nproc 获取cpu核数)
make install              # 安装
pkg-config --modversion opencv4                     # 查看版本
python3 -c "import cv2; print(cv2.__version__)"     # 查看版本

如何在 Ubuntu 20.04 上安装 OpenCV