To easily and inexpensively generate a multi-eye type stereoscopic image for stereoscopic vision from a plurality of stereoscopic vision target images without performing three-dimensional modeling.

In this image generation system 100 for generating a multi-eye type stereoscopic image for stereoscopic vision from a plurality of stereoscopic vision target images with different stereoscopic vision targets, each of the plurality of stereoscopic target images is composed of images obtained by observing the stereoscopic vision targets from at least three different viewpoint positions and has depth attribute information showing depth information when images are composited, and image data in the direction of one and the same viewpoint in the respective stereoscopic vision target images are inserted in and composited on the basis of the depth attribute information to generate the multi-eye type stereoscopic image.