摘自  https://github.com/opencv/opencv/issues/22132

好东西，收一下。

installOCV.sh#! /bin/bash
VER=4.6.0
PYTHON_VERSION=3.8
CORES=2
echo "Script for installing the OpenCV $VER on Ubuntu 18.04 LTS"
echo "Updating the OS..."
sudo apt update 
sudo apt upgrade -y
echo "Installing dependencies..."
sudo apt install build-essential cmake unzip pkg-config -y
sudo apt install libjpeg-dev libpng-dev libtiff-dev -y
sudo apt install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev -y
sudo apt install libxvidcore-dev libx264-dev -y
sudo apt install libgtk-3-dev -y
sudo apt install libatlas-base-dev gfortran -y
sudo apt install python3-dev libtbb-dev -y
sudo apt install libavcodec-dev libavformat-dev libswscale-dev libavresample-dev -y
sudo apt install libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev -y
sudo apt install libxvidcore-dev x264 libx264-dev libfaac-dev libmp3lame-dev libtheora-dev -y
sudo apt install libfaac-dev libmp3lame-dev libvorbis-dev -y
sudo apt install libdc1394-22 libdc1394-22-dev libxine2-dev libv4l-dev v4l-utils -y
sudo apt install libprotobuf-dev protobuf-compiler -y
sudo apt install libgoogle-glog-dev libgflags-dev -y
sudo apt install libgphoto2-dev libeigen3-dev libhdf5-dev doxygen -y
sudo apt install python-is-python3
echo "Fetching and unpacking OpenCV $VER..."
mkdir -p $HOME/repositories
cd $HOME/repositories
wget -O opencv.zip https://github.com/opencv/opencv/archive/${VER}.zip
wget -O opencv_contrib.zip https://github.com/opencv/opencv_contrib/archive/${VER}.zip
#wget https://bootstrap.pypa.io/get-pip.py
#sudo python3 get-pip.py
sudo -H pip3 install numpy matplotlib imutils -U
unzip opencv.zip
unzip opencv_contrib.zip
rm opencv.zip
rm opencv_contrib.zip
cd opencv-${VER}
mkdir -p build
cd buildecho "Compiling OpenCV $VER... this will take several minutes..."
rm CMakeCache.txt
hostname=$(sudo cat /etc/hostname)
cmake -D CMAKE_BUILD_TYPE=RELEASE \-D CMAKE_INSTALL_PREFIX=/usr/local \-D INSTALL_PYTHON_EXAMPLES=OFF \-D INSTALL_C_EXAMPLES=OFF \-D OPENCV_ENABLE_NONFREE=ON \-D OPENCV_EXTRA_MODULES_PATH=~/repositories/opencv_contrib-${VER}/modules \-D BUILD_NEW_PYTHON_SUPPORT=ON \-D PYTHON3_PACKAGES_PATH=/usr/local/lib/python${PYTHON_VERSION}/dist-packages \-D BUILD_opencv_python3=ON \-D PYTHON_DEFAULT_EXECUTABLE=$(which python3) \-D OPENCV_GENERATE_PKGCONFIG=ON \-D OPENCV_PC_FILE_NAME=opencv4.pc \-D WITH_TBB=ON \-D ENABLE_FAST_MATH=1 \-D CUDA_FAST_MATH=1 \-D WITH_CUBLAS=1 \-D WITH_CUDA=ON \-D BUILD_opencv_cudacodec=OFF \-D WITH_CUDNN=ON \-D OPENCV_DNN_CUDA=ON \-D CUDA_ARCH_BIN=7.5 \-D WITH_V4L=ON \-D WITH_QT=OFF \-D WITH_OPENGL=ON \-D WITH_QT=OFF \-D WITH_GSTREAMER=ON \-D WITH_FFMPEG=ON \-D WITH_OPENCL=ON \-D OPENCV_ENABLE_NONFREE=ON \-D ENABLE_PRECOMPILED_HEADERS=YES \-D EIGEN_INCLUDE_PATH=/usr/include/eigen3 \-D BUILD_EXAMPLES=ON ..
echo "Compilation has started ..."
make -j$CORES
echo "Installing OpenCV $VER ..."
sudo make -j$CORES install
sudo cp unix-install/opencv4.pc /usr/lib/x86_64-linux-gnu/pkgconfig/
sudo cp unix-install/opencv4.pc /usr/local/lib/pkgconfig
sudo ldconfig
source $HOME/.bashrc
echo "Installation complete"