Encryption of optical image using BCGH and visual cryptography

Sang-Yi Yi; Chung-Sang Ryu; Dal-Gyu Kim; Seung-Hyun Lee

doi:10.1117/12.354746

19 July 1999 Encryption of optical image using BCGH and visual cryptography

Sang-Yi Yi, Chung-Sang Ryu, Dal-Gyu Kim, Seung-Hyun Lee

Proceedings Volume 3749, 18th Congress of the International Commission for Optics; (1999) https://doi.org/10.1117/12.354746
Event: ICO XVIII 18th Congress of the International Commission for Optics, 1999, San Francisco, CA, United States

Abstract

The thresholding scheme in which a person can decode the encrypted data with an important information in the agreement of other members has been extended to the visual data by visual cryptography. But with the limitation of visual cryptography in the representation of information, some problem is encountered in application. This paper proposes a method to overcome the problem by introducing an optical technique to the visual cryptography.

Citation Download Citation

Sang-Yi Yi, Chung-Sang Ryu, Dal-Gyu Kim, and Seung-Hyun Lee "Encryption of optical image using BCGH and visual cryptography", Proc. SPIE 3749, 18th Congress of the International Commission for Optics, (19 July 1999); https://doi.org/10.1117/12.354746

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