1. A method of face categorization and annotation of a face image library, comprising: acquiring with a digital image acquisition device a first digital image of a scene that includes a face; extracting and storing in a face image library face image data corresponding to the face in the first digital image along with an unique identifier; acquiring and extracting a second digital image that includes a face of a same person as the face in the first digital image; applying face recognition to the second digital image; analyzing whether the face in the second digital image matches the face in the first digital image; and displaying the second digital image along with the first digital image, or associating the second digital image with another image stored in the face image library, or assigning and storing in the face image library the second digital image as a new face, or identifying the second digital image with biometric data stored along with the first digital image, or combinations thereof.