Color calibration for color bar codes

Details Color calibration for color bar codes Color calibration for color bar codes

2006-05-30

2006-05-30

Lee, Michael G. (Department: 2876)

Registers

Coded record sensors

Particular sensor structure

Reexamination Certificate

active

07051935

ABSTRACT:
A color bar code system includes a camera reader to read at least one color bar code having a subset of N bar code colors, a color association unit and an identifier. The color association unit associates each point in a color space with one of the bar code colors. The color association unit is calibratable to the range of colors that the camera reader is expected to produce given at least one environmental condition in which it operates. The identifier uses the color association unit to identify an item associated with the bar code from the output of the camera reader.

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patent: WO 00/04711 (2000-01-01), None
Gunther Wyszecki and W. S. Stiles, Color Science: Concepts and Methods, Quantitative Data and Formulae, second edition, 2000, pp. 117-127, John Wiley & Sons.
Richard O. Duda, et al., Pattern Classification, second edition, pp. 4-13, 174-187.

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