Copyright © 2007 The Institute of Electronics, Information and Communication Engineers
Regular Section -- Letters -- Application Information Security |
JPEG2000 Steganography which Preserves Histograms of DWT Coefficients
1 The authors are with the Department of Systems Innovation and Informatics, Kyushu Institute of Technology, Iizuka-shi, 8208502 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, 8048550 Japan.
| Abstract |
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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.