Quick & dirty script to install Python 3 OpenCV libraries with main & contrib modules

raspberry-pi-opencv-python-setup.sh

# Get latest packages
sudo apt-get update && sudo apt-get dist-upgrade -y
sudo apt-get update && sudo apt-get upgrade -y

# Install needed packages to perform common I/O image/video operations and/or math calculations
sudo apt-get update
sudo apt-get install libhdf5-dev libhdf5-serial-dev libharfbuzz-dev liblapack-dev libcblas-dev libwebp-dev \
  libilmbase-dev libopenexr-dev libgstreamer1.0-dev libjpeg-dev libtiff5-dev libjasper-dev libpng12-dev \
  libavcodec-dev libavformat-dev libswscale-dev libv4l-dev libxvidcore-dev libx264-dev libatlas-base-dev \
  gfortran libgstreamer1.0-dev libgtk-3-0 -y

# Install Python 3 and pip
sudo apt-get install python3 python3-pip -y

# Install pre-built OpenCV python bindings with contrib modules
pip3 install opencv-contrib-python-headless  # Use this line if you don't want GUI functionality
# pip3 install opencv-contrib-python # Use this line if you want GUI functionality

# Helpful links:
# - Python pre-built binaries for OpenCV: https://github.com/skvark/opencv-python
# - How to install missing packages: https://qiita.com/atuyosi/items/5f73baa08c3408f248e8
# - More missing packages: https://www.pyimagesearch.com/2017/09/04/raspbian-stretch-install-opencv-3-python-on-your-raspberry-pi/