[系统运维]Ubuntu 18.04 OpenCV3.4安装

0.安装依赖项

sudo apt-get install build-essential libgtk2.0-dev libavcodec-dev libavformat-dev libjpeg-dev
sudo apt-get install libtiff5-dev libswscale-dev
sudo add-apt-repository "deb http://security.ubuntu.com/ubuntu xenial-security main"
sudo apt update
sudo apt install libjasper1 libjasper-dev 

1.安装OpenCV3.4

#解压下载的压缩包到home文件夹下
cd opencv-3.4.5
mkdir build
cd build
cmake ..
make
sudo make install

2.配置环境变量

sudo vim /etc/ld.so.conf.d/opencv.conf
#在文件中添加  /usr/local/lib  然后保存退出
#使配置的环境变量生效
sudo ldconfig

3.配置.bashrc

sudo vim /etc/bash.bashrc
#添加下两行内容到文件末尾
PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig
export PKG_CONFIG_PATH

4.source与update

source /etc/bash.bashrc
sudo updatedb

5.测试安装是否成功

cd ./opencv-3.4.5/samples/cpp/example_cmake
mkdir build
cd build
cmake ..
make
./opencv_example
#ctrl+c退出

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