Patent ID: 8090199
Filing Date: 2012-01-03
Classification: H04N

Abstract:
1. A method, comprising: processing, using a processor, a digital image to reduce color bleeding effects in said image, comprising the step of generating two corrected chrominance components of a pixel to be corrected as a weighted mean of respective chrominance values of pixels of the image contained in a working window centered on the current pixel, wherein weights used in the weighted mean are determined for each pixel of the window different from the central pixel as a product between a first fuzzy variable and a second fuzzy variable, the first fuzzy variable having values that decrease when a maximum difference between the chrominance components of the central pixel and of the considered pixel increase, a value of the second fuzzy variable depending on an amplitude of a chrominance gradient calculated in correspondence of the central pixel; and a weight corresponding to the central pixel being always one.