Patent ID: 7573610

Claim:
An intelligent color gamut management method which converts a nonlinear color signal from a source device into a linear color signal that is reproducible by a target device, the method comprising: (a) converting the linear color signal into an xy color signal of an XYZ color space; (b) dividing a color signal region with respect to the xy color signal and calculating a color gamut boundary point; (c) performing a saturation mapping based on the color gamut boundary point; (d) performing a luminance mapping based on the linear color signal and the xy color signal, and adjusting an amount of gain in order to prevent a saturation of a low saturation color from being extremely increased and being unnatural due to a saturation stretching, and adjusting an amount of gain in order to prevent a saturation of a mid-level saturation color from being decreased due to a saturation compression.