Device independent color differences
AssigneeHewlett-Packard Development Company, L.P.
InventorsWei Koh, Melanie Gottwals, Nathan Moroney, Udi Chatow, Gershon Alon
Life of this patent
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Abstract
In the present disclosure techniques related to display of device independent color differences are described. In examples, a color comparison graphical user interface (GUI) is operated. The GUI displays a color of a sample object. Further, the GUI displays a color of a reference object. Further, the GUI displays a device independent color difference between the sample color and the reference color.
Claims20
A computer software product comprising a tangible medium readable by a processor, the medium having stored thereon a set of instructions for operating a color comparison graphical user interface (GUI), the instructions comprising:
- a set of instructions which, when loaded into a memory and executed by the processor, causes the GUI displaying a color of a sample object;
- a set of instructions which, when loaded into a memory and executed by the processor, causes the GUI displaying a color of a reference object;
- and
- a set of instructions which, when loaded into a memory and executed by the processor, causes the GUI displaying a device independent color difference between the sample color and the reference color.
A method, comprising:
- processing reproductions of a sample object, a reference object, and a color calibration chart;
- estimating a true color of the reference object and a true color of the sample reference based on a transformation obtained using the color calibration chart;
- and
- displaying a color difference between the sample true color and the reference true color, whereby the color difference is device independent.
An imaging device comprising:
- a camera to acquire an image of a sample object, a reference object, and a color calibration chart;
- a display to render a color comparison graphical user interface (GUI);
- a processor operatively connected to a memory to operate the color comparison GUI, the color comparison GUI including:
- a sample color GUI element displaying a sample color of a color object;
- a reference color GUI element displaying a reference color of a reference object;
- and
- a color comparison GUI element displaying a device independent color difference between the sample color and the reference color.
Dependencies are inferred from the claim text.