Installing OpenCV 2.4.7 on CentOs 6.4

# login as root & make sure cmake 2.8+ is installed

cd /tmp
mkdir opencv
cd opencv/
wget http://garr.dl.sourceforge.net/project/opencvlibrary/opencv-unix/2.4.7/opencv-2.4.7.tar.gz
tar -xvf opencv-2.4.7.tar.gz
cd opencv-2.4.7
mkdir build
cd build
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..
make
make install