Patent ID: 9049408
Filing Date: 2015-06-02
Classification: G09G,H04N

Abstract:
1. A method of color processing comprising: converting a pixel color of each pixel from an input color format to a Jhs color format; determining for each pixel a maximum saturation s for the corresponding lightness J and hue h; receiving frames of video data; for each pixel of each frame determining whether a pixel color of said pixel is within at least one range of predetermined colors corresponding to a viewer expected color, said at least one range of predetermined colors corresponding to a viewer expected color including a probability distribution function of colors corresponding to skin tone; and if a pixel color is determined to correspond to said viewer expected color, altering said pixel color to better approximate said viewer expected color by altering the saturation s of said corresponding pixel by selecting only a single output saturation s, and no other output saturations, equal to the minimum of an input saturation s and said maximum saturation s and including reducing said saturation s of said corresponding pixel.