An imaging apparatus, includes: an image sensor having a light receiving surface with a plurality of pixels and a plurality-of-color separation filter, which receives light from a photographic subject which is incident via an optical system on the surface via the filter, outputs a pixel output of each pixel, and images an image of the subject; a pixel output judging section which judges if each pixel output reaches each predetermined saturation level or not; a pixel output compensation processor which compensates a pixel output of a specific color filter based on a pixel output of another color separation filter in the vicinity which is less than its predetermined saturation level; and a bit compression convertor.