树莓派安装c++opencv

您可以按照以下步骤在树莓派上安装C++ OpenCV：

1. 更新系统软件包：

   sudo apt update
   sudo apt upgrade

2. 安装必要的依赖项：

   sudo apt install build-essential cmake git pkg-config
   sudo apt install libjpeg-dev libtiff5-dev libjasper-dev libpng-dev
   sudo apt install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev
   sudo apt install libxvidcore-dev libx264-dev
   sudo apt install libgtk-3-dev
   sudo apt install libcanberra-gtk*
   sudo apt install libatlas-base-dev gfortran
   sudo apt install python3-dev

3. 下载OpenCV源代码：

   cd ~
   mkdir opencv
   cd opencv
   git clone https://github.com/opencv/opencv.git

4. 下载OpenCV贡献模块（可选）：

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

5. 编译和安装OpenCV：

   cd ~/opencv/opencv
   mkdir build
   cd build
   cmake -D CMAKE_BUILD_TYPE=RELEASE \
         -D CMAKE_INSTALL_PREFIX=/usr/local \
         -D OPENCV_EXTRA_MODULES_PATH=~/opencv_contrib/opencv_contrib/modules \
         -D ENABLE_NEON=ON \
         -D ENABLE_VFPV3=ON \
         -D BUILD_TESTS=OFF \
         -D INSTALL_PYTHON_EXAMPLES=OFF \
         -D OPENCV_ENABLE_NONFREE=ON ..
   make -j4
   sudo make install
   sudo ldconfig

6. 验证安装：

   pkg-config --modversion opencv4

现在，您已经成功在树莓派上安装了C++版OpenCV。