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US 2011/0032526 A1Published application
Color analysis system and method
AssigneeHewlett-Packard Development Company, L.P.
InventorsMelanie M. Gottwals, Jeffrey M. DiCarlo, Nathan Moroney, Glen E. Montgomery, Steven W. Trovinger
Life of this patent
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Abstract
A color analysis system includes a light source and a sensor configured to provide an output signal in response to reflected light received from the first light source. A controller receives the output signal and is configured to determine an adjustment factor based on the output signal, and determine a color based on the output signal and the adjustment factor.
Claims20
A color analysis system, comprising:
- a first light source;
- a first sensor configured to provide a first output signal in response to reflected light received from the first light source;
- a controller receiving the output signal and configured to determine an adjustment factor based on the output signal, and determine a color based on the output signal and the adjustment factor.
A color analysis method, comprising:
- determining a distance between a light source and a test patch;
- measuring light reflected by the test patch;
- adjusting the measured light based on the determined distance;
- determining a color of the test patch based on the adjusted measured light.
1 more element
A color analysis method, comprising:
- positioning a light source at a plurality of distances from a color calibration patch having a known color;
- illuminating the color calibration patch at each of the distances;
- measuring light reflected by the color calibration patch at each of the distances;
- comparing the measured reflected light for each of the distances to a desired reflected light value;
- and
- determining an adjustment factor for each of the distances based on the comparisons.
3 more elements
Dependencies are inferred from the claim text.