An Information-Hiding Scheme Based on Quantization-Based Embedding Technique

Authors:
Tzu-Chuen Lu;Chin-Chen Chang;Yi-Long Liu
Affiliations:
(Correspd.) Department of Information Management, Chaoyang University of Technology, Taichung, 41349, Taiwan, R.O.C. tclu@cyut.edu.tw;Department of Information Engineering and Computer Science, Feng Chia University, Taichung, 40724, Taiwan, R.O.C. ccc@cs.ccu.edu.tw;Department of Computer Science and Information Engineering, National Chung Cheng University, Chiayi, 621, Taiwan, R.O.C. lylu91@cs.ccu.edu.tw
Venue:
Fundamenta Informaticae
Year:
2009

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Abstract

Information hiding is a technique that embeds secret data in digital media for using in a variety of applications, including ownership protection, authentication, access control, annotation and so on. In this paper, we propose an information hiding scheme based on quantization-based embedding technique to conceal information in gray-scale image. The proposed scheme was tested with a variety of gray images. According to the experimental results, hidden information can be extracted correctly and quickly from the stego image. In addition, the stego image has only a little distortion compared with the cover image. The proposed scheme can not only hide a large amount of information in the cover image, but can also repair the stego image such that the repaired image is almost the same as the cover image.