Patent ID: 8593479

Claim:
A method of correcting a preferred color comprising: converting an input image including multi-primary color data of three or more primary colors into an XYZ color space and converting the XYZ color space into data of an LCH color space including a lightness, a chroma and a hue; expanding a color gamut of the data in the LCH color space to detect a preferred color region of the color gamut expansion data and correcting the lightness, the chroma, and the hue of the preferred color region using parameters independent of the input image, wherein the parameters have been preliminarily determined and previously stored, and includes a constant for adjusting a corrected amount of preferred color mapping, an average value of preferred color distributions, a standard deviation value of the preferred color distributions, and a corrected target value of the preferred color in a multi-primary color display, and wherein the correcting is performed, in part, by multiplying the constant by the difference between the corrected target value and the average value; inversely converting the corrected data of the preferred color region of the color gamut expansion data into an XYZ color space and dividing the XYZ color space into multi-primary color data of four or more primary colors; and displaying the multi-primary color data on the multi-primary color display.