In this article we will learn how to reconstruct faces using EigenFaces. This article is written for beginners. If you don't know about Principal Component Analysis (PCA) or EigenFaces.
What is a characteristic face?
Eigenfaces are images that can be added to an average (average) face to create a new facial image. We can write this mathematically as:
![\[F = F_m + \sum^n_{i=1} \alpha_i F_i\]](https://img-blog.csdnimg.cn/img_convert/a7002f6a0e20644f7a1417c63bea07be.png)
Where,