Technical requirements
This chapter uses Python, OpenCV, and NumPy. As part of OpenCV, it uses the optional opencv_contrib modules, which include functionality for face recognition. Some parts of this chapter use OpenCV's optional support for OpenNI 2 to capture images from depth cameras. Please refer back to Chapter 1, Setting Up OpenCV, for installation instructions.
The complete code for this chapter can be found in this book's GitHub repository, https://github.com/PacktPublishing/Learning-OpenCV-5-Computer-Vision-with-Python-Fourth-Edition, in the chapter05 folder. Sample images are in the repository images folder.
A subset of the chapter’s sample code can be edited and run interactively in Google Colab at https://colab.research.google.com/github/PacktPublishing/Learning-OpenCV-5-Computer-Vision-with-Python-Fourth-Edition/blob/main/chapter05/chapter05.ipynb.
