1. A super-resolution device, comprising: an image-capturing section for imaging an object by an imaging device; a light source information estimating section for estimating light source information including at least one of an illuminance, a direction and a position of a light source illuminating the object; a shape information obtaining section for obtaining, as shape information, surface normal information or three-dimensional position information of the object; an albedo estimating section for producing an albedo image of the object from an original image captured by the image-capturing section by using the light source information and the shape information; an albedo database storing a conversion rule for converting a low-resolution albedo image to a high-resolution albedo image; an albedo super-resolution section for obtaining the conversion rule from the albedo database to perform super-resolution of the albedo image produced by the albedo estimating section according to the conversion rule; and a super-resolution section for producing a high-resolution image resolution-increased from the original image by using the high-resolution albedo image obtained by the albedo super-resolution section, the light source information and the shape information.