Patent ID: 8831344

Claim:
A method of adjusting hue, the method comprising: (a) setting a rotation angle of hue of each of regions of an image divided into a predetermined number using angle areas about a central point; (b) calculating coordinates of hue values Cr and Cb of an input pixel to determine in which of the regions the pixel is located; (c) calculating an angle of the pixel in the determined region; (d) calculating a movement angle using a rotation angle set for the determined region and a rotation angle set for an adjacent region, and determining whether interpolation is to be performed to the angle of the pixel based on a difference between the movement angle and the angle of the pixel; and (e) if it is determined that the interpolation is to be performed, calculating an interpolation angle based on the movement angle and the angle of the pixel, and moving the pixel by the interpolation angle, wherein, in operation (d), it is determined that the interpolation is to be performed if the movement angle is equal to or greater than the angle of the pixel, and it is determined that the interpolation is not to be performed if the movement angle is less than the angle of the pixel.