Patent ID: 8384722

Claim:
A system for color modification of image data, the system comprising: a first display controller including a first plurality of look up tables included in a first data path that also includes a first plurality of data channels; a second display controller including a second plurality of look up tables included in a second data path including a second plurality of data channels, wherein the second data path is different than the first data path, the second plurality of data channels are different than the first plurality of data channels and the second plurality of lookup tables are different than the first plurality of lookup tables; a source of video surfaces coupled to each of the first plurality of data channels and the second plurality of data channels, wherein the source of video surfaces provides a video surface including a plurality of pixels to the first display controller on the first data path; and a communication link coupling at least one of the second plurality of look up tables to at least one of the first plurality of data channels, wherein data for a first component of the plurality of pixels is communicated via the communication link from the at least one of the first plurality of data channels to a look up table included in the second plurality of look up tables, wherein, in a first mode of operation, the first display controller is configured to employ at least one of the first plurality of look up tables to process and output the first component of the plurality of pixels without employing any data output by the second display controller, and wherein, in the first mode of operation, the second display controller is configured to employ the look up table included in the second plurality of look up tables to process and output the first component of the plurality of pixels without employing any data processed with any of the first plurality of look up tables.