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Adaptive image steganography based on optimal embedding and robust against chi-square attack

Zanganeh, O. and Ibrahim, Subariah (2011) Adaptive image steganography based on optimal embedding and robust against chi-square attack. Information Technology Journal, 10 (7). pp. 1285-1294. ISSN 1812-5638

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Official URL: http://dx.doi.org/10.3923/itj.2011.1285.1294

Abstract

A real-life requirement motivated this case study of secure covert communication. Steganography is a technique used to transfer hidden information in an imperceptible manner. We proposed a novel approach of substitution technique of image steganography. The proposed method is flexible on size of secret message and allows us to embed a large amount of secret messages as well as maintaining good visual quality of stego-image. Using this method, message bits are embedded into uncertain and higher LSB layers, resulting in increased imperceptible and robustness of stego-image. Results show that the proposed algorithm provides large embedding capacity without losing the imperceptibility of the stego-image. The algorithm is also robust against Chi-square attack.

Item Type:Article
Uncontrolled Keywords:data hiding, image steganography, information security, steganalysis, substitution technique
Subjects:Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions:Computer Science and Information System (Formerly known)
ID Code:28668
Deposited By: Liza Porijo
Deposited On:12 Nov 2012 08:10
Last Modified:12 Nov 2012 08:10

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