1. An image processing apparatus comprising: circuitry configured to: capture a reference photographic image by using optimal values of multiple photographic parameters for the image processing apparatus, the photographic parameters including a focus position, an aperture size, a shutter speed, and light sensitivity; generate an image stack that includes a plurality of photographic images, each of the plurality of photographic images being captured by using a first set of a plurality of combinations of the multiple photographic parameters, each of the plurality of photographic images having at least one photographic parameter that is different from the optimal values for the reference photographic image; and predict an image from the reference photographic image and the image stack by using a second set of the plurality of combinations of the multiple photographic parameters, wherein values of the second set of the plurality of combinations of the multiple photographic parameters are different from values of the first set of the plurality of combinations.