Jetson nano编译opencv

1.下载opencv源码压缩包和opencv的扩展包，下载在家目录下面。

2.解压，更改名字

unzip opencv-4.5.1.zip  
unzip opencv_contrib-4.5.1.zip
mv opencv-4.5.1 opencv
mv opencv_contrib-4.5.1 opencv_contrib

3.下载依赖，有一些下不了也没有关系。

sudo apt-get install -y build-essential cmake git unzip pkg-config
sudo apt-get install -y libjpeg-dev libpng-dev libtiff-dev
sudo apt-get install -y libavcodec-dev libavformat-dev libswscale-dev
sudo apt-get install -y libgtk2.0-dev libcanberra-gtk*
sudo apt-get install -y python3-dev python3-numpy python3-pip
sudo apt-get install -y libxvidcore-dev libx264-dev libgtk-3-dev
sudo apt-get install -y libtbb2 libtbb-dev libdc1394-22-dev
sudo apt-get install -y gstreamer1.0-tools libv4l-dev v4l-utils
sudo apt-get install -y libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev
sudo apt-get install -y libavresample-dev libvorbis-dev libxine2-dev
sudo apt-get install -y libfaac-dev libmp3lame-dev libtheora-dev
sudo apt-get install -y libopencore-amrnb-dev libopencore-amrwb-dev
sudo apt-get install -y libopenblas-dev libatlas-base-dev libblas-dev
sudo apt-get install -y liblapack-dev libeigen3-dev gfortran
sudo apt-get install -y libhdf5-dev protobuf-compiler
sudo apt-get install -y libprotobuf-dev libgoogle-glog-dev libgflags-dev

4。创建build目录

cd ~/opencv
mkdir build
cd build

5.运行cmake

cmake -D CMAKE_BUILD_TYPE=RELEASE \ 
-D CMAKE_INSTALL_PREFIX=/usr/local \ 
-D OPENCV_EXTRA_MODULES_PATH=~/opencv_contrib/modules \ 
-D EIGEN_INCLUDE_PATH=/usr/include/eigen3 \
 -D WITH_OPENCL=OFF \ 
-D WITH_CUDA=ON \ 
-D CUDA_ARCH_BIN=5.3 \ 
-D CUDA_ARCH_PTX="" \ 
-D WITH_CUDNN=ON \ 
-D WITH_CUBLAS=ON \ 
-D ENABLE_FAST_MATH=ON \ 
-D CUDA_FAST_MATH=ON \ 
-D OPENCV_DNN_CUDA=ON \ 
-D ENABLE_NEON=ON \ 
-D WITH_QT=OFF \ 
-D WITH_OPENMP=ON \ 
-D BUILD_TIFF=ON \ 
-D WITH_FFMPEG=ON \ 
-D WITH_GSTREAMER=ON \ 
-D WITH_TBB=ON \ 
-D BUILD_TBB=ON \ 
-D BUILD_TESTS=OFF \ 
-D WITH_EIGEN=ON \ 
-D WITH_V4L=ON \ 
-D WITH_LIBV4L=ON \ 
-D OPENCV_ENABLE_NONFREE=ON \ 
-D INSTALL_C_EXAMPLES=OFF \ 
-D INSTALL_PYTHON_EXAMPLES=OFF \ 
-D BUILD_NEW_PYTHON_SUPPORT=ON \ 
-D BUILD_opencv_python3=TRUE \ 
-D OPENCV_GENERATE_PKGCONFIG=ON \ 
-D BUILD_EXAMPLES=OFF ..

6.在cmake的过程中会有些东西下载不了，所以必须得手动添加

 参考文章编译OpenCV以及openc_contrib提示缺少boostdesc_bgm.i文件出错的解决_Eba_的博客-CSDN博客_boostdesc_bgm.i

7.编译，编译完成后，配置环境（和正常ubuntu系统下配置环境一样）。