An image generating apparatus generating image data of a plurality of different viewpoints, comprises: a file converting device which records the image data of each viewpoint in a general-purpose image file format, and records moving image regeneration information including a regeneration time interval for regenerating each image as a moving image, and viewpoint information for regenerating each image as a three-dimensional image in a file header portion at the beginning of the general-purpose image file. By recording an image of a plurality of viewpoints along with the viewpoint information in a general-purpose moving image format, the exclusive-use regenerating apparatus becomes able to regenerate and display a three-dimensional image and a moving image, and the general-purpose regenerating apparatus becomes able to regenerate as a moving image.