Patent ID: 8730343
Filing Date: 2014-05-20
Classification: H04N

Abstract:
1. A color processing apparatus, comprising: a white setting unit configured to set a white value of viewing conditions; a calculation unit configured to calculate a luminance histogram of image data; an adapting field setting unit configured to set a luminance value of an adapting field for each of a plurality of luminance ranges based on representative values calculated from a distribution of a plurality of luminance ranges of the calculated luminance histogram, wherein each luminance range is divided according to luminances of pixels of color data; a selection unit configured to select a luminance value of an adapting field in accordance with a luminance value of the color data which is also a color conversion object based on the luminance value of the adapting field set for each of the plurality of luminance ranges; and a color conversion unit configured to carry out color conversion of the color data, using a color appearance model which models a degree of adaptation with respect to an illuminating light, using the white value set by said white setting unit and the luminance value selected by said selection unit.