Jetson AGX Xavier安装GPU支持的OpenCV3.4.3

1. 下载opencv-3.4.3和opencv_contrib-3.4.3

opencv的下载地址：https://github.com/opencv/opencv/releases

opencv_contrib的下载地址：https://github.com/opencv/opencv_contrib/releases

选择相应版本下载即可。

2. 解压后将opencv_contrib-3.4.3移动到opencv-3.4.3中。

3. 安装依赖项

sudo apt-get update
sudo apt-get install -y build-essential cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
sudo apt-get install -y libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev
sudo apt-get install -y python2.7-dev
sudo apt-get install -y python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev
sudo apt-get install -y libv4l-dev v4l-utils qv4l2 v4l2ucp
sudo apt-get install -y curl
sudo apt-get update

在安装依赖项时，如果提醒某一项无法定位，就在命令中把该项删除，再安装，否则该命令的其他项没有安装就退出了。

4. 在opencv-3.4.3文件夹下打开终端，输入以下命令

mkdir release
cd release/

cmake -D WITH_CUDA=ON -D CUDA_ARCH_BIN="7.2"  -D CUDA_ARCH_PTX="" -D WITH_GSTREAMER=ON -D WITH_LIBV4L=ON -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=OFF -D BUILD_EXAMPLES=OFF -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local OPENCV_EXTRA_MODULES_PATH=～/path/opencv-3.4.3/opencv_contrib-3.4.3/modules ..

make -j8
sudo make install

5. 等待完成。