1. An image display apparatus, comprising: an image adjustment section that adjusts a given original image; and an image display section that displays the adjusted image, wherein the image adjustment section includes: an interpolating process section that, when a skipping rate of the original image is set in at least one of a horizontal direction and a vertical direction, 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; and a filtering section that 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.