# Install packages
sudo apt-get install build-essential cmake pkg-config
sudo apt-get install cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
sudo apt-get install libjpeg-dev libtiff5-dev libjasper-dev libpng12-dev
sudo apt-get install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev
sudo apt-get install libxvidcore-dev libx264-dev
sudo apt-get install libatlas-base-dev gfortran
sudo apt-get install python2.7-dev python3-dev

# Get PIP
wget https://bootstrap.pypa.io/get-pip.py
sudo python get-pip.py

# It’s standard practice in the Python community to be using virtual 
# environments of some sort, so I highly recommend that you do the same:
sudo pip install virtualenv virtualenvwrapper
sudo rm -rf ~/.cache/pip

# virtualenv and virtualenvwrapper
export WORKON_HOME=$HOME/.virtualenvs
source /usr/local/bin/virtualenvwrapper.sh
echo -e "\n# virtualenv and virtualenvwrapper" >> ~/.profile
echo "export WORKON_HOME=$HOME/.virtualenvs" >> ~/.profile
echo "source /usr/local/bin/virtualenvwrapper.sh" >> ~/.profile

# Python2 or Python3
mkvirtualenv cv -p python3

# Change to env
source ~/.profile
workon cv

# Install python packages
pip install numpy
pip install imutils
pip install matplotlib
pip install picamera

# Get opencv source code
wget -O opencv.zip https://github.com/Itseez/opencv/archive/3.2.0.zip
wget -O opencv_contrib.zip https://github.com/Itseez/opencv_contrib/archive/3.2.0.zip

# Unzip archives
unzip opencv.zip
unzip opencv_contrib.zip

# Compile opencv
cd ~/opencv-3.2.0/
mkdir build
cd build
cmake -D CMAKE_BUILD_TYPE=RELEASE \
    -D CMAKE_INSTALL_PREFIX=/usr/local \
    -D INSTALL_PYTHON_EXAMPLES=ON \
    -D OPENCV_EXTRA_MODULES_PATH=~/opencv_contrib-3.2.0/modules \
	-D WITH_OPENMP=ON \
    -D BUILD_EXAMPLES=ON ..

make -j4

# Install
sudo make install
sudo ldconfig

# Finish installation
cd /usr/local/lib/python3.4/site-packages/
sudo mv cv2.cpython-34m.so cv2.so
cd ~/.virtualenvs/cv/lib/python3.4/site-packages/
ln -s /usr/local/lib/python3.4/site-packages/cv2.so cv2.so

# Test installation
source ~/.profile 
workon cv
python
>>> import cv2
>>> cv2.__version__
'3.2.0'
>>>