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US 11,381,712 B2Granted
Printer calibration with colors selected according to color differences between corresponding colormetric values
AssigneeHewlett-Packard Development Company, L.P.
InventorsJan Morovic, Hector Gomez Minano, Peter Morovic
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Abstract
A method is described in which sets of corresponding colorimetric values are obtained. In a set, a colorimetric value is associated with a device color. A number of device colors are selected according to the color differences between colorimetric values associated with the same device color. A color calibration pattern is elaborated for a printer to be calibrated using the selected device colors and calibration is performed using the sets of colorimetric values.
Claims20
A method of a system comprising a hardware processor, comprising:
- receiving a plurality of sets of colorimetric values for different colors obtained under respective different printing conditions, wherein a first set of colorimetric values is obtained under a first printing condition, and a second set of colorimetric values is obtained under a second, different printing condition, wherein a first colorimetric value of the first set and a corresponding first colorimetric value of the second set are for a first color, and a second colorimetric value of the first set and a corresponding second colorimetric value of the second set are for a second, different color;
- selecting a subset of the different colors according to color differences between corresponding colorimetric values of the plurality of sets, the color differences comprising a first color difference based on the first colorimetric values of the first and second sets, and a second color difference based on the second colorimetric values of the first and second sets;
- causing printing, using a printer, of a color calibration pattern comprising the subset of the different colors;
- determining a set of colorimetric values from the plurality of sets of colorimetric values based on a measurement of the printed color calibration pattern;
- and
- calibrating the printer using the printed color calibration pattern and the determined set of colorimetric values.
3 more elements
A device comprising:
- a processor;
- and
- a storage medium storing instructions executable on the processor to:
- receive a plurality of sets of colorimetric values for different colors obtained under respective different printing conditions, wherein a first set of colorimetric values is obtained under a first printing condition, and a second set of colorimetric values is obtained under a second, different printing condition, wherein a first colorimetric value of the first set and a corresponding first colorimetric value of the second set are for a first color, and a second colorimetric value of the first set and a corresponding second colorimetric value of the second set are for a second, different color;
- select a subset of the different colors according to color differences between corresponding colorimetric values of the plurality of sets, the color differences comprising a first color difference based on the first colorimetric values of the first and second sets, and a second color difference based on the second colorimetric values of the first and second sets;
- cause printing, using a printer, of a color calibration pattern comprising the subset of the different colors;
- determine a set of colorimetric values from the plurality of sets of colorimetric values based on a measurement of the printed color calibration pattern;
- and
- calibrate the printer using the printed color calibration pattern and the determined set of colorimetric values.
6 more elements
A non-transitory machine-readable storage medium comprising instructions that upon execution cause a system to:
- receive a plurality of sets of colorimetric values for different colors obtained under respective different printing conditions, wherein a first set of colorimetric values is obtained under a first printing condition, and a second set of colorimetric values is obtained under a second, different printing condition, wherein a first colorimetric value of the first set and a corresponding first colorimetric value of the second set are for a first color, and a second colorimetric value of the first set and a corresponding second colorimetric value of the second set are for a second, different color;
- select a subset of the different colors according to color differences between corresponding colorimetric values of the plurality of sets, the color differences comprising a first color difference based on the first colorimetric values of the first and second sets, and a second color difference based on the second colorimetric values of the first and second sets;
- cause printing, using a printer, of a color calibration pattern comprising the subset of the different colors;
- determine a set of colorimetric values from the plurality of sets of colorimetric values based on a measurement of the printed color calibration pattern;
- and
- calibrate the printer using the printed color calibration pattern and the determined set of colorimetric values.
3 more elements
Dependencies are inferred from the claim text.