Patent ID: 7821546

Claim:
An image processing apparatus comprising: a degree-of-deviation deriving unit which derives, for each predetermined unit area, a degree of deviation of a color of the unit area from a specific color corresponding to a predetermined characteristic amount of a subject; and a correcting unit which corrects the color for each predetermined unit area based on a correction value corresponding to the degree of deviation derived by the degree-of-deviation deriving unit, wherein the degree-of-deviation deriving unit comprises: a rotational converting unit which executes a coordinate rotating conversion based on a predetermined rotation matrix, on each of two color difference signals in an image signal for a luminance-color difference system; a normalizing unit which divides one of the color difference rotated signals obtained by the rotational converting unit by a luminance signal in the image signal to normalize the color difference rotated signal to obtain a color difference normalized signal; a color saturation degree-of-deviation calculating unit which calculates a color saturation degree-of-deviation signal from a difference between the color difference normalized signal obtained by the normalizing unit and a predetermined coefficient; and a hue degree-of-deviation calculating unit which divides the other of the color difference rotated signals obtained by the rotational converting unit by the one of the color difference rotated signals to calculate a hue degree-of-deviation signal from a resulting quotient.