如何在jetson设备上编译安装opencv
Jetson设备上安装JetPack安装了对应的OpenCV不支持CUDA且版本是固定搭配的，如下方法提供了在Nvidia Jetson 上手动编译OpenCV（支持/不支持CUDA）
1.根据自身需求下载安装OpenCV源码编译按照脚本（Github Jetsonhacks）
https://github.com/JetsonHacksNano/buildOpenCV (Nano 安装）
https://github.com/jetsonhacks/buildOpenCVXavier （Xavier/NX 安装）
OpenCV 代码包下载：（Git clone如果很慢，可以在releases中下载tar.gz 包）
https://github.com/opencv/opencv/releases
https://github.com/opencv/opencv_contrib/releases
卸载原有opencv相关内容
sudo apt-get purge *libopencv*
新建脚本
vim buildOpenCV.sh
#! /bin/bash
echo "** Remove OpenCV4.1 first"
echo "** Install requirement"
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 python3.6-dev python-dev python-numpy python3-numpy
sudo apt-get install -y 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
echo "** Download opencv-4.1.1"
cd $folder
curl -L https://github.com/opencv/opencv/archive/4.1.1.zip -o opencv-4.1.1.zip
curl -L https://github.com/opencv/opencv_contrib/archive/4.1.1.zip -o opencv_contrib-4.1.1.zip
unzip opencv-4.1.1.zip
unzip opencv_contrib-4.1.1.zip
cd opencv-4.1.1/
echo "** Building..."
mkdir release
cd release/
cmake -D WITH_CUDA=ON -D ENABLE_PRECOMPILED_HEADERS=OFF -D CUDA_ARCH_BIN="7.2" -D CUDA_ARCH_PTX="" -D OPENCV_EXTRA_MODULES_PATH=../../opencv_contrib-4.1.1/modules -D WITH_GSTREAMER=ON -D WITH_LIBV4L=ON -D BUILD_opencv_python2=ON -D BUILD_opencv_python3=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 ..
make -j6
sudo make install
echo "** Install opencv-4.1.1 successfully"
echo "** Bye :)"
编译安装
./buildOpenCV.sh
等待安装完成即可