An image capturing apparatus performs photographing multiple times and
composing the multiple images to obtain one image of a correct exposure.
The apparatus includes an image capturing unit, an illumination unit and
an image composition unit. The image capturing unit captures an optical
image of an object as an electrical signal. The illumination unit
performs illumination on photographing by the image capturing unit. The
image composition unit composes multiple images obtained by multiple
times of photographing by the image capturing unit. All of the multiple
images are the images shot by performing illumination with the
illumination unit.