The technical requirements are listed as follows:
- Python and OpenCV
 - A Python-specific IDE
 - The NumPy and Matplotlib packages
 - The Git client
 
Further details about how to install these requirements are mentioned in Chapter 1, Setting Up OpenCV. The GitHub repository for Mastering OpenCV 4 with Python, which contains all the supporting project files necessary to work through this book from the first chapter to the last, can be accessed at https://github.com/PacktPublishing/Mastering-OpenCV-4-with-Python.