Patent ID: 8385636

Claim:
A color processing apparatus comprising: a color gamut setting unit that sets a color gamut constituted by combinations of values of M color components where M is an integer equal to or larger than 4, wherein each combination of the values of the M color components constituting the color gamut has a minimum total sum of the values of the M color components among combinations of values of the M color components that provide a corresponding one of target colors by an output device that outputs a color using M colors, and each combination of the values of the M color components meets a predetermined limitation; a signal control unit that obtains output color signals each having values of the M color components as elements by controlling, within a range meeting the predetermined limit, combinations of values of the M color components each of which provide any of colors within the color gamut set by the color gamut setting unit; and a color signal pair generation unit that generates pairs each having (i) a corresponding one of the output color signals obtained by the signal control unit and (ii) an input color signal which is in an input color space, corresponds to the corresponding one of the output color signals, represents a color within the set color gamut, and has values of N color components as elements where N is an integer smaller than M.