1. An image control apparatus configured to input a plurality of image data associated with a plurality of image sources and to display a plurality of images on a same screen based on the plurality of image data, the image control apparatus comprising: an image quality determining unit configured to determine respective image qualities of the plurality of images based on a combination of program genre information of the plurality of image sources; and an image processing unit configured to process the plurality of image data to cause the plurality of images to have the respective image qualities determined by the image quality determining unit.