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Journal of Applied Sciences
Year: 2014  |  Volume: 14  |  Issue: 15  |  Page No.: 1674 - 1688

Adaptive Data Hiding Based on Visual Cryptography

M. Padmaa and Y. Venkataramani    

Abstract: Signals, images, emails, voice and videos, everything comes under screening before or after it is communicated. Protecting the information is highly essential especially in electronic communication which has become a stipulation in the routine life of zillions. Since safeguarding has many literal connotations, this study ntrates on one of them, privacy; technically secrecy or security. From the family of Information security, the proposed method can pick out cryptography and steganography to make this algorithm more secure and effective as well. As far as Visual Cryptography is concerned, the primary terminologies here are share, user and transparency. Its blend with steganography is worth mentionable here as it forms a new platform in information security and secret sharing. For embedding, Pixel Indicator (PI), Pixel Value Differencing (PVD) and OPAP are used. With reference to Pixel Indicator, two methods are discussed here. The effectiveness of the proposed method is assessed by calculating MSE and PSNR and the outcomes are tabulated and compared with existing methods.

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