Indian Journal of Science and Technology
DOI: 10.17485/ijst/2016/v9i28/92733
Year: 2016, Volume: 9, Issue: 28, Pages: 1-8
Original Article
Ngoc Tu Huynh1*, K. Bharanitharan2 and Huan Sheng Hsueh3
1 Faculty of Information Technology, [email protected]
2 Department of Electronic Engineering, [email protected]
3 Department of Computer Science and Information Engineering, [email protected]
*Author for correspondence
Ngoc Tu Huynh
Faculty of Information Technology,
Email: [email protected]
Background/Objectives: Steganographic techniques embed a secret to host cover to conceal its content. Among several methods for data embedding, Exploiting Modification Direction (EMD), which is simple and efficient, has attracted a lot of attention lately. Methods/Statistical Analysis: However, the recent schemes based on this method have high stegoimage distortion. In this paper, we employ combinatorial optimization algorithm, also known as Hungarian algorithm to reorganize the secret sequences. Findings: As a result, we can remarkably reduce the distortion and achieve the best quality of stego-image. Moreover, experimental results show that our scheme is stable under different scenarios regardless of common case, worst case, or best case. Application/Improvements: Due to the simplicity and efficiency, the method is suitable for real-time application. This method is improved further to enhance embedding capacity while remaining the image quality
Keywords: Data Hiding, EMD, Hungarian Algorithm, Information Security, Optimization, Steganography
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