1. An image generating apparatus, comprising: a real camera which captures camera image data projected onto a single real imaging plane and ranging from a close view to a distant view; an image processing controller which sets a first virtual camera in which a viewpoint thereof is shifted so as to be located higher than a viewpoint of the real camera and to face ground, and sets a second virtual camera in which a viewpoint thereof is rotated from the viewpoint of the real camera so as to face upward or downward, and which generates, from the single camera image data captured by the real camera, monitor image data for the close view viewed from the first virtual camera and monitor image data for an intermediate view to the distant view viewed from the second virtual camera; and a monitor which displays a synthesis image in which a downward image of the close view projected by the monitor image data for the close view generated by the image processing controller and a perspective image of the intermediate view to the distant view projected by the monitor image data for the intermediate view to the distant view generated by the image processing controller are synthesized.