OpenCV 3.1 Build commands

OpenCV 3.1

sudo apt-get update -y

sudo apt-get upgrade -y

sudo apt-get install build-essential cmake pkg-config  -y

sudo apt-get install libjpeg8-dev libtiff5-dev libjasper-dev libpng12-dev -y

sudo apt-get install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev -y

sudo apt-get install libxvidcore-dev libx264-dev -y

sudo apt-get autoclean

sudo apt-get install libgtk-3-dev -y

sudo apt-get install libatlas-base-dev gfortran -y

sudo apt-get install python2.7-dev -y

sudo apt-get install tree unzip -y

sudo apt-get install python-pip -y

sudo -H pip install pip -U

sudo apt-get remove python3 --purge -y

sudo -H pip install numpy -U

sudo  apt-get install --upgrade ipython

sudo -H pip install jupyter -U



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cd ~
wget -O opencv.zip https://github.com/Itseez/opencv/archive/3.1.0.zip
rm -rf ~/opencv-3.1.0
unzip opencv.zip
rm -rf ~/opencv_contrib-3.1.0
wget -O opencv_contrib.zip https://github.com/Itseez/opencv_contrib/archive/3.1.0.zip
unzip opencv_contrib.zip


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cd ~/opencv-3.1.0/
rm -rf build
mkdir build
cd build
cmake -D CMAKE_BUILD_TYPE=RELEASE \
    -D CMAKE_INSTALL_PREFIX=/usr/local \
    -D INSTALL_PYTHON_EXAMPLES=ON \
    -D INSTALL_C_EXAMPLES=OFF \
    -D OPENCV_EXTRA_MODULES_PATH=~/opencv_contrib-3.1.0/modules \
    -D PYTHON_EXECUTABLE=/usr/bin/python \
    -D BUILD_EXAMPLES=OFF  ..


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make -j4

sudo make install

sudo ldconfig

sudo ln -sf /home/ubuntu/opencv-3.1.0/build/lib/cv2.so  /usr/local/lib/python2.7/site-packages/cv2.so