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)

The SciPy ecosystem

The SciPy ecosystem is a collection of libraries for programming science, mathematics, and engineering functionalities. It has the following libraries as core components:

  • NumPy
  • SciPy
  • Matplotlib
  • IPython
  • SymPy
  • pandas

In this book, we will use all of these libraries except SymPy and pandas. In this section, we will have a look at the NumPy and Matplotlib libraries. We will learn the useful aspects of the other two libraries in the later chapters of this book.

The basics of NumPy

NumPy is a fundamental package that can be used for numerical computation with Python. It is a matrix library for linear algebra. NumPy ndarrays can also be used as an efficient multi-dimensional container of generic data. Arbitrary data types can also be defined and used. NumPy is an extension of the Python programming language. It adds support for large multi-dimensional arrays and matrices, along with a large library of high-level mathematical functions...