An apparatus, method and computer-readable storage medium for transmitting image signals. The apparatus, method and computer-readable storage medium can receive, at a first frame rate, a first image signal having an image with a first resolution; and output, at a second frame rate, a second image signal comprised of a plurality of images having a second resolution. The first resolution may be greater than the second resolution and the second frame rate may be greater than the first frame rate, so as to satisfy the condition that the first resolution multiplied by the first frame rate is equal to the second resolution multiplied by the second frame rate.