树莓派安装OpenCV4.1

1、更新系统

sudo apt-get update  -y
sudo apt-get upgrade -y

2、安装OpenCV所需依赖程序

sudo apt-get install build-essential git cmake pkg-config -y
sudo apt-get install libjpeg8-dev -y
sudo apt-get install libtiff5-dev -y
sudo apt-get install libjasper-dev -y
sudo apt-get install libpng12-dev -y
sudo apt-get install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev -y
sudo apt-get install libgtk2.0-dev -y
sudo apt-get install libatlas-base-dev gfortran -y

3、下载OpenCV4.1

mkdir opencv
cd opencv
git clone -b 4.1.0 --recursive https://github.com/opencv/opencv.git
git clone -b 4.1.0 --recursive https://github.com/opencv/opencv_contrib.git

4、cmake 配置

cd opencv
mkdir build
cd build

5、make编译

make
# 也可以用make -j4 四线程编译，没有试过是否可以

make过程比较长，大概需要4到5个小时

6、安装

sudo make install