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Archana O. Vyas
Sanjay V. Dudul

Author(s) and WSEAS

Archana O. Vyas
Sanjay V. Dudul

WSEAS Transactions on Computers

Print ISSN: 1109-2750
E-ISSN: 2224-2872

Volume 17, 2018

Notice: As of 2014 and for the forthcoming years, the publication frequency/periodicity of WSEAS Journals is adapted to the 'continuously updated' model. What this means is that instead of being separated into issues, new papers will be added on a continuous basis, allowing a more regular flow and shorter publication times. The papers will appear in reverse order, therefore the most recent one will be on top.

Secure Image Steganography Using Tri - Way Pixel - Value Differencing on Two Cover Images

AUTHORS: Archana O. Vyas, Sanjay V. Dudul

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ABSTRACT: In tri – way pixel – value differencing(TPVD) steganography approach, three different directional edges of the cover image are considered to create a stego image. TPVD gives more hiding capacity as compared to original pixel value differencing (PVD) method referring to only one direction. Encryption with steganography gives more secrecy protection to the system. In this paper, a more secure image steganographic technique is proposed, which includes encryption of image before embedding it in, two cover images using TPVD. Experimental results demonstrate that use of two cover images provide high embedding capacity. The peak signal to noise ratio (PSNR), mean square error (MSE) and hiding capacity are evaluated as performance parameter and found to have reasonable values as compared to previous related work. Encryption before embedding protects the information from unauthorized access. The embedded confidential information can be retrieved from the stego images successfully without assistance of original images.

KEYWORDS: Steganography, stego images, encryption, hiding capacity, TPVD, PVD, PSNR, MSE


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WSEAS Transactions on Computers, ISSN / E-ISSN: 1109-2750 / 2224-2872, Volume 17, 2018, Art. #11, pp. 90-97

Copyright © 2018 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution License 4.0

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