...
wget https://github.com/Itseez/opencv/archive/3.0.0.zip
unzip 3.0.0.zip
mkdir /sw/opencv/opencv-3.0.0/build
cd /sw/opencv/opencv-3.0.0/build
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
...
git clone https://github.com/Itseez/opencv_contrib.git
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
unzip 3.0.0.zip
mkdir /sw/opencv/opencv-3.0.0/build
cd /sw/opencv/opencv-3.0.0/build
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
cmake -D CMAKE_BUILD_TYPE=3.0.0 -D CMAKE_INSTALL_PREFIX=/sw/opencv/opencv-3.0.0 ..
...