METHOD AND APPARATUS FOR ADJUSTING CHROMA OF COLOR IMAGE

摘要

PURPOSE: A chroma improving device of color images and a method thereof are provided to prevent image distortion generated by chroma overload by improving chroma. CONSTITUTION: A maximum chrominance signal storage unit(121) stores and calculates a maximum chrominance signal value which outputs a maximum chroma value in a range in which a color of a digital color image is not change. A chroma signal control unit(124) improves the chroma of output images by multiplying an input chrominance signal by a gain value. The chrominance signal control unit controls the maximum chrominance signal value in order not to exceed a maximum input chrominance signal value. [Reference numerals] (110) Brightness signal processing unit; (121) Maximum chrominance signal storage unit; (122) Weighted value calculation unit; (124) Chrominance signal control unit;