Ubuntu16安装opencv

一： 预先配置

   为使OpenCV的安装在编译时更完备，预先安装好所有的开发平台；

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

二：下载编译opencv

       在OpenCV官网下载UNIX的源码包；

        Opencv发布版本：http://opencv.org/releases.html

       Github:https://github.com/opencv/opencv/releases/tag/2.4.13.2

  

      编译源码：转移到源码文件夹

mkdir opencvcd opencvmkdir buildcd build

放置下载的源码文件夹到此目录，例如opencv2.4

 cmake -D CMAKE_BUILD_TYPE=Release opencv2.4/

sudo make install

三：配置Library

   配置完成后，在opencv的配置文件添加路径代码：

sudo gedit /etc/ld.so.conf.d/opencv.conf

添加代码：/usr/local/lib




Run the following code to configure the library:


sudoldconfig

Now you have to open another file:

sudo gedit /etc/bash.bashrc

Add these two lines at the end of the file and save it:

PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig

exportPKG_CONFIG_PATH

四：测试安装

       打开Python，输入：

       import cv2.cv  as cv  

       或者：将opencv源码包下的example/c拷贝出来，执行./build_all.sh
       编译完后试一个人脸检测的程序：

    ./facedetect --cascade="/usr/local/share/OpenCV/haarcascades/haarcascade_frontalface_alt.xml" --scale=1.5 lena.jpg

五：官方的OpenCV编译安装指南

         http://www.samontab.com/web/2012/06/installing-opencv-2-4-1-ubuntu-12-04-lts/

http://docs.opencv.org/3.1.0/d7/d9f/tutorial_linux_install.html#gsc.tab=0