Patent ID: 8064693
Filing Date: 2011-11-22
Classification: G06T,H04N

Abstract:
1. A method of adjusting colour saturation in an input image to provide an output image, the method comprising: Adjusting, by a processor, a colour saturation value for at least some of the pixels in an input image to provide an output image; wherein for each pixel for which the colour saturation value is adjusted, the colour saturation value for the pixel is adjusted in dependence on both a brightness value and a colour value for said pixel; for each of said at least some pixels, reading from a brightness values look-up table a brightness scale parameter corresponding to the brightness value of the pixel, reading from a colour values look-up table a colour scale parameter corresponding to the colour value of the pixel, obtaining a final scale parameter for the pixel from the brightness scale parameter and the colour scale parameter, and adjusting the colour saturation value for the pixel in accordance with said final scale parameter; and, receiving, by a processor, an enhancement level parameter input by a user, wherein the brightness scale parameters in the brightness values look-up table are calculated in dependence on said input enhancement level parameter.