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Visual cryptography with extra ability of hiding confidential data

[+] Author Affiliations
Wen-Pinn Fang

National Chiao Tung University, Department of Computer and Information Science, 1001 Ta Hsueh Road, Hsinchu, Taiwan

Ja-Chen Lin

National Chiao Tung University, Department of Computer and Information Science, 1001 Ta Hsueh Road, Hsinchu, Taiwan

J. Electron. Imaging. 15(2), 023020 (April 18, 2006). doi:10.1117/1.2193912
History: Received July 18, 2005; Revised September 30, 2005; Accepted October 25, 2005; Published April 18, 2006
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We present a two-in-one visual cryptography (VC) scheme that not only shares an image of moderate confidentiality between two noisy transparencies, but also hides in these two transparencies a more confidential text file describing the image. None of the transparencies alone can reveal anything about the image or text. Later, people can view the image by simply stacking the two transparencies; on the other hand, after certain simple computations, the more confidential text data can also be extracted. We also introduce an alternative version in which the decoding of both the image and text requires no computer.

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© 2006 SPIE and IS&T

Citation

Wen-Pinn Fang and Ja-Chen Lin
"Visual cryptography with extra ability of hiding confidential data", J. Electron. Imaging. 15(2), 023020 (April 18, 2006). ; http://dx.doi.org/10.1117/1.2193912


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