Patent ID: 7081925
Filing Date: 2006-07-25
Classification: H04N

Abstract:
1. An adaptive chrominance compensation method for the optimizing treatment of color images of electronic equipments, according to real-time recognition of primary-color voltages E r , E g and E b in the signals of original equipment and the location of color-gamut cells they belong to, voltage compensation is then performed based on the preset adaptive corresponding relations and compensation parameters, so as to achieve the chrominance compensation for imaging colors, wherein said method comprising the following steps: dividing all the colors that can be reproduced by the equipment into T color-gamut cells ( acquiring actual-object samples and signals of actual-object samples that can reflect the color characteristics in the predetermined area of the cell for each color-gamut cell; reproducing the same actual-object sample on the screens of testing equipments according to different chrominance characteristics, namely, color hues, chroma, brightness and background, carrying out the test for contrasting and evaluating the viewing effect of the images and choosing the most optimized image as the best color reproduction image of the actual-object sample; choosing the best image of color reproduction (S testing the optimized compensation coefficients of primary-color voltages when the common image of actual-object sample (S setting the relationship of the optimized converting functions, which correspond to those optimized compensation coefficients of T groups of primary-color voltages, into fiducial-voltage generators or fiducial memories according to pre-acquired parameters of optimized white reference D