Apparatus and method for calibrating a digital scanner

Details Apparatus and method for calibrating a digital scanner Apparatus and method for calibrating a digital scanner

1995-09-28

1997-04-15

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

With circuit for evaluating a web, strand, strip, or sheet

25055939, H04N 1047

Patent

active

056212178

ABSTRACT:
A system for calibrating a digital scanner utilizes a calibration strip having reference information printed thereon and a machine readable encoded tag having characteristic values corresponding to the calibration strip reference information encoded thereon. A scanning system scans the calibration strip and the machine readable encoded tag to generate image data corresponding to scanned-in reference information and data corresponding to scanned-in characteristic values of the reference information. The correction values are then derived from the generated image data and the decoded characteristic values that accurately describe the desired image data.

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patent: 4750490 (1988-06-01), Haw et al.
patent: 5118183 (1992-06-01), Cargill et al.
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patent: 5424537 (1995-06-01), Lehman et al.
English Abstract of Published Japanese Patent Application JP7273954-A, (E91: Exposing Apparatus), Oct. 20, 1995.

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