树莓派安装opencv

要在树莓派上安装OpenCV，可以按照以下步骤进行：

1. 更新树莓派系统：

sudo apt-get update
sudo apt-get upgrade

2. 安装OpenCV所需的依赖项：

sudo apt-get install build-essential cmake pkg-config
sudo apt-get install libjpeg-dev libtiff5-dev libjasper-dev libpng-dev libwebp-dev libopenexr-dev
sudo apt-get install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev libxvidcore-dev libx264-dev libdc1394-22-dev
sudo apt-get install libatlas-base-dev liblapacke-dev gfortran

3. 下载OpenCV源代码：

cd ~
wget -O opencv.zip https://github.com/opencv/opencv/archive/master.zip
wget -O opencv_contrib.zip https://github.com/opencv/opencv_contrib/archive/master.zip
unzip opencv.zip
unzip opencv_contrib.zip

4. 编译和安装OpenCV：

cd ~/opencv-master
mkdir build
cd build
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D OPENCV_EXTRA_MODULES_PATH=~/opencv_contrib-master/modules ..
make -j4
sudo make install
sudo ldconfig

这些步骤会在树莓派上安装OpenCV，并使其可以用于图像和视频处理等任务。