Patent ID: 7733525

Claim:
A gamut mapping method implemented by a gamut mapping apparatus including a processor having computing device-executable instructions, the method comprising: (a) setting a cut-off rate for a predetermined color component and defining a cut-off region on a standard color circle; (b) determining a gamut of a reproduction device using color data which is part of basic color data and which corresponds to colors that do not belong to the cut-off region; (c) modifying a gamut of a source device according to the determined gamut of the reproduction device; (d) determining a mapping relationship between the modified gamut of the source device and the determined gamut of the reproduction device; and (e) creating a mapping table based on the determined mapping relationship, the mapping table presenting a relationship between color data represented in a color space of the source device and color data represented in a color space of the reproduction device, wherein the cut-off region is defined by a cut-off curve and a circumference of the standard color circle, wherein the cut-off curve is formed by drawing a curve through a point, which corresponds to the predetermined color component multiplied by the cut-off rate, and two points which are located on the circumference of the standard color circle apart from the predetermined color component.