Colorization is the art of adding color to a monochrome image or movie. The idea of coloring photos and films is not new. Ironically, hand coloring of photographs is as old as photography itself. There exists such examples from 1842 and possibly earlier. Colorization was used in motion pictures in the early 1900´s by the French Company Pathé, where many films were colored by hand. It was also a common practice for filmstrips into the 1930´s. The computerassisted process was first introduced by Canadians Wilson Markle and Brian Hunt in 1970 for adding color to black and white movies.