Patent ID: 9047555
Filing Date: 2015-06-02
Classification: G06K,H04N

Abstract:
1. An apparatus comprising: a setting unit configured to set a chromaticity point serving as a gray reference in a color gamut of a color space that an output device is able to output; a first specifying unit configured to specify a first minimum lightness point on a lightness axis of the chromaticity point set by the setting unit in the color gamut of the color space that the output device is able to output; a second specifying unit configured to specify a second minimum lightness point that is achromatic in the color gamut of the color space that the output device is able to output; and a generation unit configured to generate a gray line that passes through a black point that is a minimum lightness point on a line connecting the first minimum lightness point specified by the first specifying unit and the second minimum lightness point specified by the second specifying unit, the first minimum lightness point, and the chromaticity point set by the setting unit, wherein the gray line reaches a white point in the color gamut of the color space that the output device is able to output, wherein the line connecting the first minimum lightness point and the second minimum lightness point is a line of an outermost shell of the color gamut.