ubuntu安装opencv
（1）安装编译opencv的环境
sudo apt-get -y install build-essential cmake pkg-config
（2）安装Image I/O库
sudo apt-get -y install libjpeg62-dev
sudo apt-get -y install libtiff4-dev libjasper-dev
（3）安装GTK库
sudo apt-get -y install libgtk2.-dev
（4）安装Video I/O库
sudo apt-get -y install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev
(5)安装支持摄像头固件的库
sudo apt-get -y install libdc1394--dev
（6）安装视频流库
sudo apt-get -y install libxine-dev libgstreamer0.-dev libgstreamer-plugins-base0.-dev
（7）安装python开发环境和python 数学库
sudo apt-get -y install python-dev python-numpy
（8）安装 Intel tbb library
sudo apt-get -y install libtbb-dev
（9）安装Qt开发库
sudo apt-get -y install libqt4-dev
（10）从http://opencv.org/中下载OpenCV，然后解压缩
tar -zxvf OpenCV-2.9.tar.bz2
创建编译目录
cd OpenCV-2.9
mkdir build
cd build
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 INSTALL_C_EXAMPLES=ON -D INSTALL_PYTHON_EXAMPLES=ON
-D BUILD_EXAMPLES=ON -D WITH_QT=ON -D WITH_OPENGL=ON ..
开始编译（这个过程比较长，耐心等待）
make
最后不要忘记安装
sudo make install
现在配置Qt下OpenCV的开发环境，从http://qt-project.org/下载集成开发环境，安装
然后打开QtCreator，点击File，选择New File or Project，选择Non-Qt Project ,选择Plain C++ Project, 点击choose
项目建立完成后会看到一个*.pro文件然后打开添加OpenCV的库
INCLUDEPATH += /usr/local/include LIBS += -L/usr/local/lib \
-lopencv_core \
-lopencv_imgproc \
-lopencv_highgui \
-lopencv_ml \
-lopencv_video \
-lopencv_features2d \
-lopencv_calib3d \
-lopencv_objdetect \
-lopencv_contrib \
-lopencv_legacy \
-lopencv_flann
然后就可以写程序了