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Proceedings Paper

Retaining color fidelity in multiple-generation reproduction using digital watermarks
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Paper Abstract

In most existing color reproduction systems, color correction is performed in an open-looped fashion. For multiple generation color copying, color fidelity cannot be guaranteed as the errors introduced in color correction may accumulate. In this paper, we propose a method of solving the error accumulation problem by embedding color information as invisible digital watermark in hardcopies. When the hardcopy is scanned, the embedded information can be retrieved to provide real-time calibration. As the method is close-looped in nature, it may reduce error accumulation and improve color fidelity, particularly when copies go through multiple generation reproduction.

Paper Details

Date Published: 13 January 2003
PDF: 7 pages
Proc. SPIE 5008, Color Imaging VIII: Processing, Hardcopy, and Applications, (13 January 2003); doi: 10.1117/12.474875
Show Author Affiliations
Zhigang Fan, Xerox Corp. (United States)
Shen-ge Wang, Xerox Corp. (United States)
Hui Cheng, Sarnoff Corp. (United States)


Published in SPIE Proceedings Vol. 5008:
Color Imaging VIII: Processing, Hardcopy, and Applications
Reiner Eschbach; Gabriel G. Marcu, Editor(s)

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