An image display apparatus includes a background image selection unit for providing image data corresponding to a background image, a synthesis-target-image selection unit for providing image data corresponding to a different image to be superimposed on the background image, a motion vector detection unit for detecting a motion vector in the background image, a display position determination unit for determining a display position of the different image on the background image based on the detected motion vector, and an image combining unit for carrying out an image combining operation in which the different image is positioned at the determined display position and is superimposed over the background image.