Ubuntu 16.04 安装opencv

1.安装依赖库

sudo apt-get install build-essential
sudo apt-get install cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
sudo apt-get install python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev

2.安装opencv

cd ~/opencv-3.4.3 
mkdir build 
cd build 
cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/usr/local ..  #注:后面的两个点表示上级目录
make -j7 # 多线程执行make任务
sudo make install  # 安装库文件
#安装完成

3.安装python接口

$ pip install opencv-python #安装opencv
$ pip install opencv-contrib-python #安装opencv的contrib扩展包