Introduction

In the previous chapter, we learned how to implement various object tracking algorithms using the OpenCV library. Also, in Chapter 5, Face Processing in Image and Video, we discussed the concept of face detection. Now, it's time to discuss the next technique of face processing, called facial recognition. We will also discuss a few popular object detection techniques.

Facial recognition is a technique used to identify a person using their face in images or videos, including real-time image data. It is widely used by social media companies, companies manufacturing mobile devices, law enforcement agencies, and many others. One of the advantages of face recognition is that compared to other biometric processes, such as fingerprint or iris recognition, facial recognition is non-intrusive. It captures various facial features from an image and then analyzes and compares these features with facial features captured from other images to find the best match. In the first...