Patent ID: 7190831

Claim:
A method for squeezing hue values (H in ) of a digital image toward a preferred hue value (H pref ) for the digital image, comprising: (a) receiving a digital image file, the digital image file including a plurality of pixels of color image data, each pixel of the color image data being defined by a hue value, a chroma value, and a lightness value; (b) selecting a hue value (H in ) from the digital image file; (c) selecting a preferred hue value (H pref ); (d) calculating a hue change value (ΔH=H in −H pref ); (e) calculating a chroma weight value (C WEIGHT ) and a hue weight value (H weight ); (f) calculating a hue adjustment value (H Adjust =ΔH*(H weight*C weight )); (g) calculating a destination hue value (H out =H in −H Adjust ); and (h) generating a modified digital image file by replacing the hue value (H in ) in the digital image file with destination hue value (H out ).