This chapter will introduce concepts in face detection and face recognition and provide
a project to detect faces and recognize them when it sees them again. Face recognition
is both a popular and a difficult topic, and many researchers devote years to the field
of face recognition. So this chapter will explain simple methods of face recognition,
giving the reader a good start if they want to explore more complex methods.
In this chapter, we cover the following:
• Face detection
• Face preprocessing
• Training a machine-learning algorithm from collected faces
• Face recognition
• Finishing touches