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Proceedings Paper

Creating variable data infrared signals for security applications
Author(s): Reiner Eschbach; Raja Bala; Martin Maltz; Iris Zhao
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Paper Abstract

Four color printing is the common way to render a color image to paper. This four color printing has certain side effects, among them the metameric representation of colors. This means that a single visual color can be generated through multiple different four color combinations. This is normally considered a problem, however, the problem description can be inverted and information can be embedded in a printed color image that is perceptually invisible under normal illumination, but revealed to an infrared imaging system. This means that certain security aspects can now produced in an essentially cost-neutral way.

Paper Details

Date Published: 19 January 2009
PDF: 9 pages
Proc. SPIE 7241, Color Imaging XIV: Displaying, Processing, Hardcopy, and Applications, 72411E (19 January 2009); doi: 10.1117/12.811573
Show Author Affiliations
Reiner Eschbach, Xerox Corp. (United States)
Raja Bala, Xerox Corp. (United States)
Martin Maltz, Xerox Corp. (United States)
Iris Zhao, Xerox Corp. (United States)


Published in SPIE Proceedings Vol. 7241:
Color Imaging XIV: Displaying, Processing, Hardcopy, and Applications
Reiner Eschbach; Gabriel G. Marcu; Shoji Tominaga; Alessandro Rizzi, Editor(s)

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