Title: VCPSS: A two-in-one two-decoding-options image sharing method combining visual cryptography (VC) and polynomial-style sharing (PSS) approaches
Authors: Lin, Sian-Jheng
Lin, Ja-Chen
Department of Computer Science
Keywords: hiding using block-types;Image sharing;(t, n) threshold scheme;halftone version;compression
Issue Date: 1-Dec-2007
Abstract: This paper presents a novel method to combine two major branches of image sharing: VC and PSS. n transparencies are created for a given gray-valued secret image. If the decoding computer is temporarily not available at (or, not connected to) the decoding scene, we can still physically stack any t received transparencies (t <= n is a threshold value) to get a vague black-and-white view of the secret image immediately. On the other hand, when the decoding computer is finally available, then we can get a much finer gray-valued view of the secret image using the information hidden in the transparencies. In summary, each transparency is a two-in-one carrier of the information, and the decoding has two options. (c) 2007 Pattern Recognition Society. Published by Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.patcog.2007.04.001
ISSN: 0031-3203
DOI: 10.1016/j.patcog.2007.04.001
Volume: 40
Issue: 12
Begin Page: 3652
End Page: 3666
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