A method and apparatus for blending a plurality of image input layers include processing that begins by converting each of a plurality of image input layers that have a color base that differs from a color base of a display into a image layer having the color base of the display, thereby producing converting...http://www.google.com.au/patents/US6462786?utm_source=gb-gplus-sharePatent US6462786 - Method and apparatus for blending image input layers