Hue adjustor and method for adjusting hues for specific colors in an image

摘要

A hue adjustor and method for adjusting hues for specific colors in an image are provided. The hue adjustor includes a CORDIC unit (coordinated rotation digital computer unit), a color partition operation unit and a hue rotation unit. The color partition operation unit is coupled to the CORDIC unit and used to compute a new hue angle corresponding to a chrominance signal when falling in an adjustment area that is generated based on a control signal. The hue rotation unit is coupled to the color partition operation unit and used to rotate the chrominance signal by the new hue angle.