1. An electronic apparatus comprising: an image sensor; a memory including data representing a reference set of faces; a processor, coupled to the memory and to the image sensor, configured to: receive image data from the image sensor; detect at least one face image in the image data; perform facial recognition on the at least one face image; in a case that a first face image is recognized as matching one face of the reference set of faces, make the at least one face image a designated face, and set at least one configuration parameter of the electronic apparatus based on a region of interest in the image data corresponding to the designated face.