Interactive method and system for color characterization and calibration of display device
First Claim
Patent Images
1. A system for determining color rendition in an imaging device, comprising:
- a brightness reference providing a first black reference area and a first white reference area;
a gamma reference providing a halftone reference area and a continuous tone reference area;
a black point reference providing a second black reference area and a color intensity reference area;
a contrast reference providing a gray reference area;
a white point correlated color temperature reference providing a second white reference area; and
a matching card having known visual characteristics under a prescribed light source for comparing with a selected subset of the references.
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Abstract
A system and method of characterizing the colors displayed on a display device and calibrating the display device is disclosed. A series of images are displayed to the user, and the user selects portions of the image that match other portions, that match characteristics of a matching card juxtaposed to the display device or that meet other criteria.
137 Citations
18 Claims
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1. A system for determining color rendition in an imaging device, comprising:
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a brightness reference providing a first black reference area and a first white reference area; a gamma reference providing a halftone reference area and a continuous tone reference area; a black point reference providing a second black reference area and a color intensity reference area; a contrast reference providing a gray reference area; a white point correlated color temperature reference providing a second white reference area; and a matching card having known visual characteristics under a prescribed light source for comparing with a selected subset of the references. - View Dependent Claims (2, 8, 9, 10, 14)
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3. A method of determining color rendition in an imaging device, comprising:
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using the imaging device to provide a brightness reference having a first black reference area and a first white reference area; using the imaging device to provide a gamma reference having a halftone reference area and a continuous tone reference area, and making a comparison therebetween; using the imaging device to provide a black point reference having a second black reference area and a color intensity reference area, and making a comparison therebetween; using the imaging device to provide a contrast reference having a gray reference area; using the imaging device to provide a white point correlated color temperature reference having a second white reference area; and making a comparison between a subset of said references and a matching card having known visual characteristics under a prescribed light source. - View Dependent Claims (4, 5, 6, 7, 15)
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11. A system for determining color rendition in an imaging device, comprising:
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a reference area; and a matching card having known visual characteristics at each of a plurality of ambient lighting conditions, for comparing with the reference area to determine imaging parameter values of the imaging device under a prevailing one of the plurality of ambient lighting conditions. - View Dependent Claims (16)
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12. A method of determining color rendition in an imaging device, comprising:
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using the imaging device to provide a visual reference area; providing a matching card having known visual characteristics under each of a plurality of ambient lighting conditions; making a comparison between said visual reference area and said matching card; and determining color rendition in the imaging device in response to said comparison. - View Dependent Claims (13, 17, 18)
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Specification