1. A digital camera comprising: an object detecting unit that analyzes an analysis target image including either one of a through image data sequentially taken in from an image pickup device to compose a shot of an object and a reduced image acquired by reducing a shot image being acquired in a shooting process and stored in a storage medium, on the basis of a feature appearing in an image representing an object of shooting including a person, an animal and a plant, and detects at least one main object captured in the analysis target image; an object information extracting unit that extracts, for respective images of at least one object detected by the object detecting unit from the analysis target image corresponding to a shot image acquired by shooting, object information including first position data that represents a position of the image of the object on a screen corresponding to the analysis target image and corresponding to an expansion of the image of the object; a position data converting unit that converts the first position data to second position data based on a size of the shot image and either one of the through image data and the reduced image; and a display controlling unit that enlarges and displays a part of the image of the object on a display section, the image of the object being specified by the second position data converted by the position data converting unit.