METHOD FOR MAPPING COLORS BETWEEN IMAGING SYTEMS AND METHOD THEREFOR
A method for converting CMYK source device values to CMYK destination device values includes converting the CMYK source device values to a four-color device-independent color space using a source profile with a four-color device-independent color space. The four color device-independent color space is converted to the CMYK destination values using a destination profile with the four color device-independent color space, and three colors of the four color device-independent color space are used to define the color of a combined CMYK values and the remaining device-independent color space color is used to define the color of only a K colorant.
1 . A method for converting CMYK source device values to CMYK destination device values, comprising:
converting the CMYK source device values to a four color device-independent color space using a source profile with a four color device-independent color space;
converting the four color device-independent color space to the CMYK destination values using a destination profile with the four color device-independent color space; and
wherein three colors of the four color device-independent color space are used to define the color of a combined CMYK values and the remaining device-independent color space color is used to define the color of only a K colorant.
2 . A method as defined in claim 1 , wherein the device-independent color space comprises a profile connecting space (PCS) used for converting the coordinates of the source profile to destination profile.
3 . A method as defined in claim 2 , wherein the PCS comprises a Commission Internationale de l'Éclairage L*a*b (CIELAB) color space.
4 . A method as defined in claim 1 , further comprising:
generating a color map or device profile link that maps colors between the source device and the destination device.
5 . A system for converting CMYK source device values to CMYK destination device values, comprising:
a source device profile interpreter that converts the CMYK source device values to a four color device-independent color space using a source profile with a four color device-independent color space;
a destination device profile interpreter that converts the four color device-independent color space to the CMYK destination values using a destination profile with the four color device-independent color space; and
wherein three colors of the four color device-independent color space are used to define the color of a combined CMYK values and the remaining device-independent color space color is used to define the color of only a K colorant.
6 . A system as defined in claim 5 , wherein the device-independent color space comprises a profile connecting space (PCS) used for converting the coordinates of a source profile to a destination profile.
7 . A system as defined in claim 6 , wherein the PCS comprises a Commission Internationale de l'Éclairage L*a*b (CIELAB) color space.
8 . A system as defined in claim 7 , further comprising:
a color map generator coupled to the source and destination device interpreters for generating a color map or device profile link that maps colors between the source device and the destination device.
9 . A method for converting CMYK source device values to CMYK destination device values, comprising:
converting CMYK values to a four color profile connecting space (PCS) using a source profile with a four color PCS;
converting the four color PCS to the CMYK destination values using a destination profile with the four color PCS; and
wherein three colors of the four color PCS are used to define the color of a combined CMYK values and the remaining PCS color is used to define the color of only one particular colorant.
10 . A method as defined in claim 9 , wherein the PCS comprises a Commission Internationale de l'Éclairage L*a*b (CIELAB) color space.
11 . A method as defined in claim 9 , wherein the one particular colorant comprises a K colorant.