1. A method, comprising: automatically analyzing, by a processor, a digital image or metadata associated with the digital image to designate one or more image elements in the digital image; determining familiarity levels of the designated image elements to a particular person, wherein determining the familiarity levels comprises: designating a digital image collection that is associated with the particular person, the digital image collection including a plurality of digital images; and determining a degree of similarity between each of the designated image elements and one or more image elements in the digital images in the digital image collection, wherein each familiarity level is based on a corresponding determined degree of similarity; determining an interest level of the digital image to the particular person responsive to the determined familiarity levels; and storing an indication of the determined interest level in a memory.