Patent ID: 8331660

Claim:
An adaptive color-temperature calibration system, comprising: a chrominance generation unit configured to generate a chrominance criterion according to an input pixel, the chrominance criterion indicating amount of chrominance in the input pixel; a matrix generation unit configured to generate a calibration matrix according to the chrominance criterion and a basis matrix; and a color calibration unit configured to perform color-temperature calibration on the input pixel according to the generated calibration matrix, thereby generating an output pixel; wherein the input pixel is represented by red (R), green (G) and blue (B) in RGB color space, and the color calibration unit performs color-temperature calibration by multiplying the input pixel by the generated calibration matrix A according to matrix multiplication: [ Rout ⁢ ⁢ Gout ⁢ ⁢ Bout ] = [ Rin ⁢ ⁢ Gin ⁢ ⁢ Bin ] · A = [ Rin ⁢ ⁢ Gin ⁢ ⁢ Bin ] · [ a 11 a 12 a 13 a 21 a 22 a 23 a 31 a 32 a 33 ] wherein [Rout Gout Bout] is the output pixel, [Rin Gin Bin] is the input pixel, and a 11 through a 33 are constants.