The technique of the present invention effectively relieves potential deterioration of the picture quality due to an interpolating process carried out simultaneously with a skipping process. When a skipping rate of the original image is set in at least one of a horizontal direction and a vertical direction, an image display apparatus of the present invention carries out a skipping process at selected positions in the at least one of the horizontal direction and the vertical direction, and simultaneously carries out interpolation on non-skipped pixels adjacent to skipped pixel, thereby generating an interpolated image. The image display apparatus subsequently carries out a filtering process on the interpolated image, the filtering process being carried out with a spatial low pass filter and a spatial high pass filter which are used substantially in this sequence.