Patent ID: 8379267

Claim:
A computer implemented method for retrieving a gamut mapping, the method comprising: sampling a plurality of color points along axes of a color space over a number of nodes defined by a destination profile LUT of a host device; performing a color transformation on said sampled color points to obtain input L*a*b* values; performing a system estimation on any of: a seed device and a seed profile, wherein a gamut mapping is incorporated, said system estimation using said input L*a*b* values to produce corresponding output L*a*b* values, said input L*a*b* values and said corresponding output L*a*b* values comprising input-output L*a*b* pairs; generating, for each of said input-output L*a*b* pairs, a ray having said input L*a*b* value as a start point, and said corresponding output L*a*b* value as an end point, each of said rays comprising a ray-based color model for each of said input-output L*a*b* pairs; and mapping out-of-gamut colors to an intersection of a boundary surface of a gamut of said host device using said ray-based models.