Provided is an image processing apparatus, comprising an image generating section that generates a converted image by performing a coordinate conversion on a captured image captured through an optical system, such that a spread of light from the optical system has a shape that is spatially substantially uniform; a correcting section that corrects the converted image based on the spread of the light modified by the image generating section to have the shape that is substantially uniform; and an inverse converting section that performs an inverse conversion of the coordinate conversion on the converted image corrected by the correcting section.