Image processing method, image processing apparatus and computer readable memory

An image processing apparatus comprising:

• calibrating means for calibrating a set of one-dimensional correction LUTs in accordance with a color reproduction characteristic of an output device;
• first modifying means for modifying, on the basis of the calibrated set of one-dimensional correction LUTs, a first set of one-dimensional conversion LUTs, that has been stored in a profile corresponding to the output device, used for converting device-independent data to output device-dependent data which is dependent upon the output device;
• and
• second modifying means for modifying, on the basis of the calibrated set of one-dimensional correction LUTs, a second set of one-dimensional conversion LUTs, that has been stored in the profile corresponding to the output device and different than the first set of one-dimensional conversion LUTs, the second set of one-dimensional conversion LUTs used for converting output device-dependent data to device-independent data.

A computer program product comprising a computer readable medium having computer program codes, for executing image processing, said product including:

• calibration process procedure codes for executing processing for calibrating a set of one-dimensional correction LUTs in accordance with a color reproduction characteristic of an output device;
• first modification process procedure codes for modifying, on the basis of the calibrated set of one-dimensional correction LUTs, a first set of one-dimensional conversion LUTs, that has been stored in a profile corresponding to the output device, used for converting device-independent data to output device-dependent data which is dependent upon the output device;
• and
• second modification process procedure codes for modifying, on the basis of the calibrated set of one-dimensional correction LUTs, a second set of one-dimensional conversion LUTs, that has been stored in the profile corresponding to the output device and different than the first set of one-dimensional conversion LUTs, the second set of one-dimensional conversion LUTs used for converting output device-dependent data to device-independent data.

An image processing method comprising:

• a calibrating step of calibrating a set of one-dimensional correction LUTs in accordance with a color reproduction characteristic of an output device;
• a storing step of storing the calibrated set of one-dimensional correction LUTs into a memory separately from a profile that describes an output characteristic of the output device;
• a modifying step of modifying, on the basis of the calibrated set of one-dimensional correction LUTs, when color matching processing is executed using the profile, a set of one-dimensional conversion LUTs which is different than the calibrated set of one-dimensional correction LUTs and which is stored in the profile corresponding to the output device, the set of one-dimensional conversion LUTs for converting device-independent data to data dependent upon the output device;
• and
• a color matching execution step of executing color matching processing using the profile which stores the modified set of one-dimensional conversion LUTs.

An image processing apparatus comprising:

• calibrating means for calibrating a set of one-dimensional correction LUTs in accordance with a color reproduction characteristic of an output device;
• first storage means for storing the calibrated set of one-dimensional correction LUTs calibrated by said calibrating means;
• second storage means for storing a profile that describes an output characteristic of the output device;
• modifying means for modifying, on the basis of the calibrated set of one-dimensional correction LUTs, when color matching processing is executed using the profile, a set of one-dimensional conversion LUTs which is different than the calibrated set of one-dimensional correction LUTs and which is stored in the profile corresponding to the output device, the set of one-dimensional conversion LUTs for converting device-independent data to data dependent upon the output device;
• and
• color matching execution means for executing color matching processing using the profile which stores the modified set of one-dimensional conversion LUTs.

A computer program product comprising a computer readable medium having computer program codes, for executing image processing, said product including:

• calibration process procedure codes for calibrating a set of one-dimensional correction LUTs in accordance with a color reproduction characteristic of an output device;
• storing process procedure codes for executing processing for storing the calibrated set of one-dimensional correction LUTs into a memory separately from a profile that describes an output characteristic of the output device;
• modification process procedure codes for modifying, on the basis of the calibrated set of one-dimensional correction LUTs, when color matching processing is executed using the profile, a set of one-dimensional conversion LUTs which is different than the calibrated set of one-dimensional correction LUTs and which is stored in the profile corresponding to the output device, the set of one-dimensional conversion LUTs for converting device-independent data to data dependent upon the output device;
• and
• color processing execution procedure codes for executing color matching processing using the profile which stores the modified set of one-dimensional conversion LUTs.

Computer-executable process steps stored on a computer readable medium, said computer-executable process steps for executing image processing, the computer executable process steps comprising:

• a calibration process procedure step to execute processing for calibrating a set of one-dimensional correction LUTs in accordance with a color reproduction characteristic of an output device;
• a first modification process procedure step for modifying, on the basis of the calibrated set of one-dimensional correction LUTs, a first set of one-dimensional conversion LUTs, that has been stored in a profile corresponding to the output device, used for converting device-independent data to output device-dependent data which is dependent upon the output device;
• and
• a second modification process procedure step for modifying, on the basis of the calibrated set of one-dimensional correction LUTs, a second set of one-dimensional conversion LUTs, that has been stored in the profile corresponding to the output device and different than the first set of one-dimensional conversion LUTs, the second set of one-dimensional conversion LUTs used for converting output device-dependent data to device-independent data.

Computer-executable process steps stored on a computer readable medium, said computer-executable process steps for executing image processing, the computer executable process steps comprising:

• a calibration process procedure step for calibrating a set of one-dimensional correction LUTs in accordance with a color reproduction characteristic of an output device;
• a storing process procedure step for executing processing for storing the calibrated set of one-dimensional correction LUTs into a memory separately from a profile that describes an output characteristic of the output device;
• a modification process procedure step for modifying, on basis of the calibrated set of one-dimensional correction LUTs, when color matching processing is executed using the profile, a set of one-dimensional conversion LUTs which is different than the calibrated set of one-dimensional correction LUTs and which is stored in the profile corresponding to the output device, the set of one-dimensional conversion LUTs for converting device-independent data to data dependent upon the output device;
• and
• a color processing execution procedure step for executing color matching processing using the profile which stores the modified set of one-dimensional conversion LUTs.