An image generating apparatus according to the present invention includes: a first light source unit that emits light in a first wavelength band to a subject a second light source unit that emits light in a second wavelength band, which is a part of the first wavelength band, to the subject an image pickup unit that picks up an image of the subject and outputs the image as an image pickup signal a light cut filter unit that is provided between the subject and the image pickup unit and cuts light in the second wavelength band reflected from the subject and a complementary processing unit that applies, on the basis of the image pickup signal, complementary processing to a component equivalent to the second wavelength band cut by the light cut filter unit in the image of the subject picked up by the image pickup unit in a state in which the subject is illuminated by the light in the first wavelength band.
