Patent ID: 6310969
Filing Date: 2001-10-30
Classification: H04N

Abstract:
A method for converting an input color to a HS'V color model having a reverse conical shape around a V axis and the apex at the bottom, the method comprising:defining a hue H as the angle around the V axis;defining a saturation S' as a normal vector of the V axis in the direction from the V axis to the circumference C of the cone; anddefining a value V as a vector in the positive direction of the V axis;wherein the saturation S' ranges between 0 and 1, and wherein the saturation S' of the color model is converted from a RGB color model with (r,g,b) color values by the following equations:max=the maximum value from input r,g,bmin=the minimum value from input r,g,bS'=(max-min)/max*max=s*max=max-min.