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IEICE Transactions on Information and Systems 2007 E90-D(4):783-786; doi:10.1093/ietisy/e90-d.4.783
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Copyright © 2007 The Institute of Electronics, Information and Communication Engineers

Regular Section -- Letters -- Application Information Security

JPEG2000 Steganography which Preserves Histograms of DWT Coefficients

Hideki NODA1, Yohsuke TSUKAMIZU2 and Michiharu NIIMI1

1 The authors are with the Department of Systems Innovation and Informatics, Kyushu Institute of Technology, Iizuka-shi, 820–8502 Japan. E-mail: noda{at}mip.ces.kyutech.ac.jp, 2 The author is with the Department of E.E. and Computer Engineering, Kyushu Institute of Technology, Kitakyushu-shi, 804–8550 Japan.


  Abstract

This paper presents two steganographic methods for JPEG2000 still images which approximately preserve histograms of discrete wavelet transform coefficients. Compared with a conventional JPEG2000 steganography, the two methods show better histogram preservation. The proposed methods are promising candidates for secure JPEG2000 steganography against histogram-based attack.

Key Words: steganography, JPEG2000, information hiding, histogram preservation, quantization index modulation

Manuscript received August 17, 2006. Manuscript revised December 7, 2006.


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