主权项 |
1. A color processing apparatus for performing color conversion using a color conversion table which has signal values of an output color space corresponding to grid points dividing an input color space into a plurality of unit cubes, the apparatus comprising:
a determination unit configured to determine a quadrant to which an input signal belongs, in a chromaticity plane perpendicular to a lightness axis of the input color space; a first detection unit configured to detect a unit cube to which the input signal belongs in the plurality of unit cubes; and a division unit configured to divide the detected unit cube into a plurality of polyhedrons for interpolation operation by a segmentation method corresponding to the determined quadrant, wherein the divide of the detected unit cube is performed along a direction of a diagonal line, which passes through an origin of the chromaticity plane, in a part of the plurality of unit cubes in accordance with the segmentation method, wherein at least one of the determination unit, the first detection unit, or the division unit is implemented using a processor. |