Earticle

초록

영어

Embedding data into smooth regions introduces stego-images with poor security and visual quality. Edge adaptive steganography, in which the flat regions are not employed to carry a message at low embedding rates, was proposed. However, for the high embedding rates, smooth regions are contaminated to hide a secret message. In this paper, we present an adaptive multi-layer block data-hiding (MBDH) algorithm, in which the embedding regions are adaptively selected according to the number of the secret message bits and the texture characteristic of a cover-image. Via employing the MBDH algorithm, more secret message bits are embedded into the sharp regions. Therefore, the smooth regions are not used, even at high embedding rates. Furthermore, most of edge adaptive steganography algorithms have a limited capacity when the smooth regions are not employed in data hiding. The proposed scheme solves this issue when it can embed more secret bits into the selected regions while the perceptual quality of stego-images is still maintained. The experimental results were evaluated on 10,000 natural gray-scale images. The visual attack, targeted steganalysis, and universal steganalysis are employed to examine the performance of the proposed scheme. The results show that the new scheme significantly overcomes the previous edge-based approaches and least significant bit (LSB) based methods in term of security and visual quality.

목차

Abstract
 1. Introduction
 2. Background and Related Work
  2.1. Pixel-value Differencing (PVD)-based Scheme
  2.2. Analysis of EA-LSBMR
 3. Proposed Scheme
  3.1. Data Hiding
  3.2. Data Extraction
  3.3. Region Selection
  3.4. Keystream Generation using Gray-code
  3.5. Multi-layer Block Data-Hiding Algorithm
 4. Experimental Results and Analysis
  4.1. Embedding Capacity and Image Visual Quality Discussion
  4.2. Visual Attack
  4.3. Steganalysis using Amplitude of Local Extrema (ALE)
  4.4. Security Analysis under Universal Steganalyzers
 5. Conclusion
 Acknowledgement
 References

키워드

저자

• Tuan Duc Nguyen [ Student, Dept. of Computer Science, Faculty of Science, Khon Kaen University, Khon Kaen 40000, Thailand ]
• Somjit Arch-int [ Associate Professor, Dept. of Computer Science, Faculty of Science, Khon Kaen University, Khon Kaen 40000, Thailand ]
• Ngamnij Arch-int [ Associate Professor, Dept. of Computer Science, Faculty of Science, Khon Kaen University, Khon Kaen 40000, Thailand ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Security and Its Applications

• 간기

  격월간

• pISSN

  1738-9976

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605