An apparatus for generating an diagnostic image of an object including a first image capturing unit to acquire a first diagnostic image, a second diagnostic image capturing unit that captures images by utilizing a different format of image capturing than the first image capturing unit in order to acquire a second diagnostic image that is different from the first diagnostic image. An image processor is configured to extract distinct points from at least one of the first diagnostic image and the second diagnostic image and perform image registration the first and second diagnostic images based on the extracted distinct points.
