1. An electronic apparatus comprising: at least one processor configured to: extract at least one candidate thumbnail image from a plurality of frames of moving-picture data according to a plurality of thumbnail extraction criteria, and determine at least one final thumbnail image from the at least one candidate thumbnail image based on which of the plurality of thumbnail extraction criteria is used to extract each of the at least one candidate thumbnail image; and a display configured to display the at least one final thumbnail image, wherein the at least one processor is further configured to determine the at least one final thumbnail image by providing a first priority to a case when a registered face is recognized and providing a second priority to a case when a face is detected.