Volume 5 Number 2 (Feb. 2010)
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JSW 2010 Vol.5(2): 214-224 ISSN: 1796-217X
doi: 10.4304/jsw.5.2.214-224

DCT-based Reversible Data Hiding Scheme

Chia-Chen Lin, Pei-Feng Shiu
Department of Computer Science and Information Management, Providence University 200 Chung-Chi Rd., Taichung, Taiwan

Abstract—To enhance the hiding capacity of Chang et al.’s reversible DCT-based data hiding scheme, in this paper we propose another method called a layer-1 data embedding strategy. Our proposed layer-1 strategy considers some areas not used by Chang et al.’s scheme, which we call layer-2 data embedding. To achieve our objective, we applied Tian’s pixel expansion method to design our layer-1 data embedding strategy. Experimental results confirm that the hiding capacity provided by combining our strategy with Chang et al.’s is higher than that provided by the Chang et al. approach alone. Moreover, the image quality of stego-images with our proposed scheme remains above 30 dB for most test images, which is better than the best image quality offered by Chang et al.’s scheme. Finally, the security and reversibility of Chang et al.’s scheme is unaffected when their layer-2 scheme is combined with our proposed layer-1 scheme.

Index Terms—Reversible data hiding, DCT, JPEG.

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Cite: Chia-Chen Lin, Pei-Feng Shiu, "DCT-based Reversible Data Hiding Scheme," Journal of Software vol. 5, no. 2, pp. 214-224, 2010.

General Information

ISSN: 1796-217X (Online)
Frequency:  Bimonthly (Since 2020)
Editor-in-Chief: Prof. Antanas Verikas
Executive Editor: Ms. Yoyo Y. Zhou
Abstracting/ Indexing: DBLP, EBSCO, Google Scholar, ProQuest, INSPEC(IET), ULRICH's Periodicals Directory, WorldCat, etc
E-mail: jsw@iap.org
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