1. An image generating apparatus, comprising: a storage unit configured to store a plurality of images; and a disparity map generating unit configured to generate a disparity map associated with a pair of images including a first image and a second image, wherein the disparity map indicates corresponding pixels in the first and second images, viewpoints of images stored in the storage unit are placed on a first area having no object and a second area having one or more objects, images from viewpoints in the first area includes a whole or part of the second area, and images from viewpoints in the second area are generated based on images from viewpoints in the first area, viewpoints in the second area are set on a boundary of one or more objects in the second area, and cameras are positioned only at viewpoints disposed in the first area.