1. A method of modifying an image to be displayed on a display that has viewing angle dependant image characteristics comprising: (a) receiving said image; (b) determining automatically, without user interaction, the respective locations of a viewer, each relative to one of an automatically determined number of regions into which said display is subdivided, each said location including both a distance from the respectively associated said region of said display and an angle of incidence with respect to the respectively associated said regions of said display, where automated determination of said number of regions is based on criteria selected as a function of the determined said distance relative to the size of said display; (c) modifying said image based upon said respective locations in such a manner that at least one of the gamma and the white point viewed by said viewer are on average shifted toward at least one of the gamma and the white point said viewer would observe at a normal viewing angle of said display.