Book Image

Raspberry Pi Computer Vision Programming - Second Edition

By : Ashwin Pajankar
5 (1)
Book Image

Raspberry Pi Computer Vision Programming - Second Edition

5 (1)
By: Ashwin Pajankar

Overview of this book

Raspberry Pi is one of the popular single-board computers of our generation. All the major image processing and computer vision algorithms and operations can be implemented easily with OpenCV on Raspberry Pi. This updated second edition is packed with cutting-edge examples and new topics, and covers the latest versions of key technologies such as Python 3, Raspberry Pi, and OpenCV. This book will equip you with the skills required to successfully design and implement your own OpenCV, Raspberry Pi, and Python-based computer vision projects. At the start, you'll learn the basics of Python 3, and the fundamentals of single-board computers and NumPy. Next, you'll discover how to install OpenCV 4 for Python 3 on Raspberry Pi, before covering major techniques and algorithms in image processing, manipulation, and computer vision. By working through the steps in each chapter, you'll understand essential OpenCV features. Later sections will take you through creating graphical user interface (GUI) apps with GPIO and OpenCV. You'll also learn to use the new computer vision library, Mahotas, to perform various image processing operations. Finally, you'll explore the Jupyter Notebook and how to set up a Windows computer and Ubuntu for computer vision. By the end of this book, you'll be able to confidently build and deploy computer vision apps.
Table of Contents (15 chapters)

Installation and the environment setup on Windows, Debian, and Ubuntu

We can demonstrate all the areas we have learned on other desktop computers with the Windows and Linux OSes. Only the part related to the Raspberry Pi camera module will not work with the other computers as desktop motherboards usually do not come with DSI ports. We can also run the code examples on other single-board computers that run Debian or Ubuntu.

The process to install the packages is the same on Ubuntu, Debian, and their derivatives. All the modern Linux distributions come with Python 3. We just need to use the apt and pip3 tools for installation.

For a Windows PC, we need to install everything from scratch. Let's get started with understanding how to install Python 3 by taking the following steps:

  1. Visit www.python.org and download the installation file for the latest Python 3 release:

    Figure 13.12 – The Python Foundation home page

    Run the downloaded setup file. It will open an installation...