Patent ID: 6272239
Filing Date: 2001-08-07
Classification: G06T,H04N

Abstract:
A digital image color correction device for correcting a facial tone image portion of a digital video image, the device comprising:a pixel fuzzifier unit receiving in input a stream of pixels belonging to a sequence of correlated frames of a digital video image and computing a multilevel value representing a membership of each pixel to a skin color class;a global parameter estimator receiving in input each of said pixels and the relative membership value, and computing a first and second parameter which define the characteristics of pixels in a portion of said image that belongs to said skin color class;a processing unit connected downstream to said global parameter estimator and to said pixel fuzzifier unit and adapted to correct each of the pixels of said portion of the image that belongs to said skin color class, according to said first global parameter, to obtain corrected pixels, so that each pixel of said portion is corrected based upon other pixels in said portion; anda processing switch for outputting said pixels or said corrected pixels according to said second global parameter.