Patent ID: 8441498

Claim:
A video processing device, comprising: a luminance and saturation detector adapted to detect the luminance values and the saturation values of pixels of an input video signal, wherein the luminance and saturation detector includes: a RGB squaring unit adapted to square amplitudes of sub-pixels of the pixels of the input video signal, a RGB shuffler unit adapted to rank the sub-pixels based on the respective squared amplitude values of the sub-pixels, a luminance and saturation calculation unit adapted to calculate, for each pixel, the luminance value, an internal saturation and a first saturation correction factor, and a saturation correction unit adapted to output the saturation value for each pixel, wherein said saturation value for said pixel is a corrected saturation value based on said internal saturation and the first saturation correction factor; a white-point, saturation and hue modulator adapted to transform the luminance and saturation values of each pixel of the input video signal into a corresponding white-point correction factor, a second saturation correction factor, and a hue correction factor; a color gamut matrix generating unit adapted to generate a color gamut matrix in the perception domain based on the white-point correction factor, the second saturation correction factor, and the hue correction factor; a color gamut mapping unit adapted to multiply the pixels of the input video signal with the color gamut matrix; and a clipping unit adapted to clip the results of the color gamut mapping unit which are out of a predefined range.