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DCT Based Robust Multi-bit Steganographic Algorithm

  • Imon Mukherjee
  • Arunangshu Podder
Conference paper
Part of the Smart Innovation, Systems and Technologies book series (SIST, volume 28)

Abstract

With the rise of communication through the Internet, there has also been a rise of interception of important messages, thus resulting in a greater risk of breach of privacy. Hence, constant research is going on for the development and improvement of techniques that can handle such attacks. Most of the existing algorithms use either the spatial domain or the frequency domain of the image for embedding the secret message. This paper introduces a steganographic algorithm that uses the frequency domain of the image for selecting the potential pixels and the spatial domain for embedding the message bits, thus making it robust against steganalytic attacks. This technique is also capable of withstanding statistical attacks. Our proposed algorithm embeds a maximum of 5 bits of the message per pixel in each image component thus making the embedding capacity very high. Besides embedding capacity, our technique also has a high embedding efficiency.

Keywords

Information Security Multi-bit DCT Steganography Steganalysis Data hiding 

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  1. 1.Department of Computer Science & EngineeringSt. Thomas’ College of Engineering & TechnologyKolkataIndia

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