Patent ID: 8248513

Claim:
An image processing apparatus comprising: an image acquiring section that acquires an image captured through an optical system having an optical transfer function that depends at least on distance to an object point, the optical system holding spread of light from the object point substantially constant regardless of the distance to the object point; an image processing section that applies a correction process for correcting the spread of light to the image, based on the optical transfer function of the optical system; an image generating section that generates a composite image by superimposing, onto each other, a plurality of corrected images generated by the image processing section applying, to the image, different correction processes corresponding to different optical transfer functions, an optical parameter acquiring section that acquires information indicating the imaging characteristic of the optical system at the time when the image is captured; and an image processing parameter storing section that stores information indicating a plurality of correction processes to be applied to the image, in association with imaging characteristics of the optical system, wherein the optical transfer function of the optical system further depends on an object point position along an optical axis of the optical system, the image processing section generates the plurality of corrected images by applying, to the image, different correction processes corresponding to different object point positions, the image processing section generates the plurality of corrected images by applying, to the image, a plurality of correction processes indicated by information stored by the image processing parameter storing section in association with an imaging characteristic substantially matching the imaging characteristic indicated by the information acquired by the optical parameter acquiring section, the optical transfer function of the optical system further depends on the object point position and an imaging characteristic of the optical system, and the image processing section generates the plurality of corrected images by applying, to the image, different correction processes corresponding to different object point positions and imaging characteristics.