83.Ubuntu14.04安装OpenCV2.9

安装工具

sudo apt-get install git
sudo apt-get install g++
sudo apt-get install vim

下载Opencv

opencv2.9

解压

mkdir tmp
mv opencv-2.4.9.zip tmp
cd tmp
unzip opencv-2.4.9.zip
cd opencv-2.4.9
mkdir release

安装依赖库

sudo apt-get install build-essential cmake libgtk2.0-dev pkg-config python-dev python-numpy libavcodec-dev libavformat-dev libswscale-dev  

在opencv的官方文档也有说明：

1. GCC 4.4.x or later. This can be installed with:sudo apt-get install build-essential 

2. CMake 2.6 or higher;
3. Git;
4. GTK+2.x or higher, including headers (libgtk2.0-dev);
5. pkg-config;
6. Python 2.6 or later and Numpy 1.5 or later with developer packages (python-dev, python-numpy);
7. ffmpeg or libav development packages: libavcodec-dev, libavformat-dev, libswscale-dev;
8. [optional] libdc1394 2.x;
9. [optional] libjpeg-dev, libpng-dev, libtiff-dev, libjasper-dev. 
   ff-dev, libjasper-dev.

进入目录生成MakeFile文件

cd releaase

安装所有的lib文件都会被安装到/usr/local目录下

cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..

构建和安装

make

make install

加载动态连接库

sudo sh -c ‘echo "/usr/local/lib" > /etc/ld.so.conf.d/opencv.conf‘

sudo ldconfig