Patent ID: 8212741

Claim:
A dual display device for displaying an input image including input digital words, the dual display device comprising: a first display, a second display and a processor including an image splitter, the first display modulating an image from the second display, and the image splitter splitting the input image to obtain an illumination image having illumination digital words supplied to the second display and to obtain a reflection image having reflection digital words supplied to the first display, wherein an input digital word of the input digital words includes a group of sub-words together defining a luminance and color of a pixel of the input image, wherein the dual display device further comprises a word splitter for splitting the input digital word into a luminance sub-word representing the luminance of the pixel of the input image and color sub-words representing the color of the pixel of the input image, and wherein the image splitter applies a retinex algorithm only to the luminance sub-words.