1. An endoscopic processor comprising: a video signal input to which a video signal obtained by capturing an image of a subject is input; a release signal input to which a release signal created by a release manipulation performed by a user is input; a target area detector that is connected to the video signal input and that, for each frame image in the input video signal, detects a target area within the frame image and outputs position information, the target area being an area in which an amount of characteristics is greater than a predetermined threshold; a zoom processor that generates an enlarged image obtained by performing zoom processing on the target area within the frame image on the basis of the position information output by the target area detector; a storage that associates the enlarged image generated by the zoom processor with the frame image from which the target area has been detected and that holds the images; and an output that externally outputs, from the storage, the frame image and the enlarged image that both correspond to a timing at which the release signal was input to the release signal input.