Patent ID: 8736899

Claim:
A color conversion method for wide-gamut color spaces in a color display device, comprising: converting data of a predetermined wide-gamut color space into data of a RGB color space; determining, using a processor, whether a ratio of a number of pixels whose values are not within the range of 0 to 1 to a total number of pixels of the converted RGB data exceeds a predetermined value; extending the RGB data and clipping the extended RGB data to an extended range when the ratio of the number of pixels whose values are not within the range of 0 to 1 to the total number of pixels of the RGB data exceeds the predetermined value; clipping the RGB data to a normalized range, if the ratio does not exceed the predetermined value; and dividing the clipped RGB data into a number of regions and performing a mapping operation in units of the regions; wherein, the clipping of the extended RGB data further comprises, determining whether the RGB data corresponds to a shift to a black or white area, if it is determined that the ratio exceeds the predetermined value; clipping the RGB data to the normalized range, if it is determined that the RGB data corresponds to the shift to the black or white area; and extending the RGB data and clipping the extended RGB data, if it is determined that the RGB data does not correspond to the shift to the black or white area.