ubuntu14.04安装opencv3.0.0

1.安装依赖项
直接编译安装opencv一般会报错，依赖工具需要先安装。

$ sudo apt-get install build-essential cmake libopencv-dev libgtk2.0-dev pkg-config python-dev python-numpy

2.下载opencv3(两个版本任选其一）

$ mkdir ~/opencv
$ cd ~/opencv

$ wget https://github.com/Itseez/opencv/archive/3.0.0-alpha.zip -O opencv-3.0.0-alpha.zip
$ unzip opencv-3.0.0-alpha.zip
$ cd opencv-3.0.0-alpha

//$ wget https://github.com/Itseez/opencv/archive/3.0.0-beta.zip
//$ unzip opencv-3.0.0-beta.zip
//$ cd opencv-3.0.0-beta

$ mkdir release
$ cd release

3.编译和安装

$ cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_TBB=ON -D BUILD_NEW_PYTHON_SUPPORT=ON -D WITH_V4L=ON -D WITH_QT=ON -D WITH_OPENGL=ON -D WITH_CUDA=OFF ..  //不关闭显卡会报错（-D WITH_CUDA=OFF）
$ make -j       //多核处理器进行编译比默认的make只用一核快
$ sudo make install

4.配置环境变量

$ sudo /bin/bash -c 'echo "/usr/local/lib" > /etc/ld.so.conf.d/opencv.conf'
$ sudo ldconfig