1. A moving image capture apparatus comprising: an imaging unit configured to capture visual information to output an image signal; a recording unit configured to record the image signal output by the imaging unit on a recording medium; a character recognition unit configured to extract character information from the image signal; a parameter value storing unit configured to store with the character information, a parameter value based on a characteristic of appearance of the character information extracted by the character recognition unit; an evaluation value calculation unit configured to calculate an evaluation value used to the parameter value stored by the parameter value storing unit for each of the character information; and a thumbnail generation unit configured to generate a thumbnail based on an image signal from which the character information being the predetermined evaluation value calculated is extracted.