1. An image processing apparatus comprising: an imaging information calculation unit that acquires a first image generated by a first camera that captures a predetermined range at a first angle of view, that acquires a plurality of second images generated by a plurality of second cameras, each of which captures a portion of the predetermined range at a second angle of view that is narrower than the first angle of view, the second images being higher in resolution than the first image, and that calculates coordinate positions of the plurality of second images with respect to the first image and differences of imaging directions of the plurality of second cameras with respect to an imaging direction of the first camera as capturing information; an eyepoint conversion unit that generates eyepoint conversion images that are obtained by converting the plurality of second images on the basis of the differences of the imaging directions calculated by the imaging information calculation unit so that eyepoints of the plurality of second cameras are made to coincide with an eyepoint of the first camera and matches the first image with the eyepoint conversion images to calculate deviations in phase of the eyepoint conversion images with respect to the first image; and an image synthesizing unit that extracts high-frequency images, formed of frequency components higher than or equal to a predetermined frequency band, from the plurality of second images, and that pastes the high-frequency images at the coordinate positions in correspondence with the first image so as to eliminate the deviations in phase of the eyepoint conversion images with respect to the first image, calculated by the eyepoint conversion unit, to generate a synthesized image.