1. An image processing apparatus comprising: stereoscopic image input means for inputting a plurality of stereoscopic images; depth detection means for detecting a depth of each of the stereoscopic images inputted by the stereoscopic image input means; stereoscopic image arrangement means for laying out the stereoscopic images at least in partial overlap in such a manner that the larger the depth detected by the depth detection means is, the more forward the corresponding image is placed; and image recording means for recording the stereoscopic images laid out by the stereoscopic image arrangement means.