Patent ID: 7894001

Claim:
A system for adjusting a hue of a target color, the system comprising: a hue determining circuit, receiving a plurality of color signals corresponding to the target color and a plurality of hue adjusting values corresponding to different colors, respectively, and generating a target hue adjusting value according to the plurality of color signals and the plurality of hue adjusting values; and a hue adjusting circuit, receiving the plurality of color signals and the target hue adjusting value, and adjusting hue angles of the plurality of color signals according to the target hue adjusting value to adjust the hue of the target color; wherein the hue determining circuit comprises: a color tone analyzing circuit, receiving the plurality of color signals, and transforming the plurality of color signals into a plurality of color tone signals; a hue adjusting value selecting circuit, receiving the plurality of hue adjusting values and the plurality of color tone signals, and selecting one hue adjusting value from the plurality of hue adjusting values according to each color tone signal; and an interpolation circuit, receiving the plurality of color signals and a plurality of selected hue adjusting values, and performing interpolations on the plurality of selected hue adjusting values according to the plurality of color signals to generate the target hue adjusting value.