Patent ID: 8184903

Claim:
A color correction method of an RGB signal, comprising; (a) transforming an original RGB-coordinate point corresponding to the RGB signal in an RGB color space to a two-dimension original coordinate point on a reference plane of the RGB color space, wherein all points on the reference have the same value with the RGB signal, the reference plane is orthogonal to a value axis, the reference plane has an origin, the three coordinate axes of the RGB color space correspond to a two-dimension R-vector, a two-dimension G-vector and a two-dimension B-vector on the reference plane; (b) executing at least one of the following steps: (b1) adjusting the radian of the vector, formed by the two-dimension original coordinate point and the origin, corresponding to one of the two-dimension R-vector, the two-dimension G-vector and the two-dimension B-vector; (b2) adjusting the distance between the two-dimension original coordinate point and the origin; and (b3) shifting the reference plane along the value axis; and (c) transforming the adjusted two-dimension original coordinate point to a new RGB-coordinate point in the RGB color space, the new RGB-coordinate point corresponding to a new RGB signal, wherein the original RGB-coordinate point is transformed to the two-dimension original point according to an adjacent matrix, the two-dimension R-vector is defined as 0 degrees, the two-dimension G-vector is defined as 120 degrees, the two-dimension B-vector is defined as 240 degrees, and the adjacent matrix is expressed as: [ 1 3 1 3 1 3 - 1 2 1 2 0 - 1 6 - 1 6 2 6 ] .