Patent ID: 6904165

Claim:
An apparatus for enhancing pixel color having three components (R, G, B) respectively corresponding to the primary colors of Red, Green and Blue, comprising: a first circuitry for respectively calculating and outputting values of (R−G),(G−B) and (B−R); a first multiplexer circuitry, coupled to the first circuitry and responsive to a first selection signal, for selectively outputting two values of (R−G), (G−B) and (B−R) according to a first predetermined manner; a multiplier circuitry, coupled to the first multiplexer circuitry, for selectively generating two scaled values of S*(R−G), S*(G−B) and S*(B−R), wherein S is a predetermined scale factor; a second multiplexer circuitry, coupled to the multiplier circuitry and responsive to a second selection signal, for selectively outputting the S*(R−G), S*(G−B) and S*(B−R); an AND logic circuitry, coupled to the second multiplexer circuitry and responsive to a first control signal, for selectively outputting a set signal of (S*(B−R), S*(G−B), 0), (S*(R−G), 0, S*(G−B)) and (0, S*(R−G), S*(B−R)); and an arithmetic circuitry, coupled to the AND logic circuitry and inputting the three components (R, G, B), for selectively outputting an enhanced color components of (R+S*(R−B), G+S*(G−B), B), (R+S*(R−G), G, B+S*(B−G)) and (R,G+S*(G−R), B+S*(B−R)), responsive to a second control signal.