Patent ID: 7271851

Claim:
A method of processing an image chrominance signal F having a transient response, comprising the steps of: adaptively enhancing chrominance transient of the signal F as a function of corresponding image characteristics, to obtain an adaptively enhanced signal G, by: generating an adaptive correction signal AR for enhancing chrominance transient of the chrominance signal F, wherein the adaptive correction signal AR is a function of said corresponding image characteristics, wherein the step of generating the adaptive correction signal AR further includes the steps of generating a correction signal R for enhancing chrominance transient of the chrominance signal F, and adaptively controlling the correction signal R as a function of said corresponding image characteristics to generate said adaptive correction signal AR; wherein the step of generating the correction signal R further includes the steps of: determining a local chrominance signal minimum F min ; obtaining a difference between said chrominance signal F and said local minimum F min ; and generating the correction signal R based on said difference; and combining the adaptive correction signal AR with the chrominance signal F to obtain said enhanced signal G; wherein the chrominance transient enhancement is controlled as a function of said corresponding image characteristics.