Patent ID: 8547609

Claim:
A method of converting CIELab color values in image data to a color gamut of an output imaging device, the method comprising: receiving the image data from an input imaging device; generating a CMYK to CIELab model; generating a table of CMYK color values and corresponding CIELab color values based on the model; mapping the CIELab color values of the image data to a CIELab color gamut of the output imaging device; comparing the mapped CIELab color values to the CIELab color values of the table to retrieve corresponding CMYK color values; and processing the retrieved CMYK color values to convert the CIELab color values of the image data to the CIELab color gamut of the output imaging device, wherein generating the CMYK to CIELab model comprises generating a numerical CMYK to CIELab model using a radial basis function, wherein processing the retrieved CMYK color values comprises optimizing the CMYK color values based on the CMYK to CIELab model via a multidimensional optimization.