Hybrid wet paper coding mechanism for steganography employing n-indicator and fuzzy edge detector

  • Authors:
  • Chin-Chen Chang;Jung-San Lee;T. Hoang Ngan Le

  • Affiliations:
  • Department of Information Engineering and Computer Science, Feng Chia University, 100 Wenhwa Rd., Seatwen, Taichung 40724, Taiwan, ROC and Department of Computer Science and Information Engineerin ...;Department of Information Engineering and Computer Science, Feng Chia University, 100 Wenhwa Rd., Seatwen, Taichung 40724, Taiwan, ROC;Department of Computer Science, Natural Science University, 227 Nguyen Van Cu, District 5, HCMC, Viet Nam

  • Venue:
  • Digital Signal Processing
  • Year:
  • 2010

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Abstract

Data hiding technique can facilitate security and the safe transmission of important information in the digital domain, which generally requires a high embedding payload and good stego image quality. Recently, a steganographic framework known as wet paper coding has been utilized as an effective strategy in image hiding to achieve the requirements of high embedding payload, good quality and robust security. In this paper, besides employing this mechanism as a fundamental stage, we take advantage of two novel techniques, namely, an efficient n-indicator and a fuzzy edge detector. The first is to increase the robustness of the proposed system to guard against being detected or traced by the statistics methods while allowing the receiver without knowledge of secret data positions to retrieve the embedded information. The second is to improve the payload and enhance the quality of stego image. The experimental results show that our proposed scheme outperforms its ability to reduce the conflict among three steganography requirements.