@inproceedings{5bf457d804144df4bbf8ee2fac6e80c3,
title = "Nonparametric steganalysis of QIM data hiding using approximate entropy",
abstract = "This paper proposes a nonparametric steganalysis method for quantization index modulation (QIM) based steganography. The proposed steganalysis method uses irregularity (or randomness) in the test-image to distinguish between the cover- and the stego-image. We have shown that plain-quantization (quantization without message embedding) induces regularity in the resulting quantized-image; whereas message embedding using QIM increases irregularity in the resulting QIM-stego image. Approximate entropy, an algorithmic entropy measure, is used to quantify irregularity in the test-image. Simulation results presented in this paper show that the proposed steganalysis technique can distinguish between the cover- and the stego-image with low false rates (i.e. Pfp < 0.1 & Pfn < 0.07 for dither modulation stego and Pfp < 0.12 & Pfn < 0.002 for QIM-stego).",
keywords = "Algorithmic entropy, Approximate entropy, Complexity, Dither modulation, Entropy, Quantization index modulation, Steganalysis, Steganography",
author = "Hafiz Malik and Subbalakshmi, {K. P.} and R. Chandramouli",
year = "2008",
doi = "10.1117/12.767313",
language = "English",
isbn = "9780819469915",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Proceedings of SPIE-IS and T Electronic Imaging - Security, Forensics, Steganography, and Watermarking of Multimedia Contents X",
note = "Security, Forensics, Steganography, and Watermarking of Multimedia Contents X ; Conference date: 28-01-2008 Through 30-01-2008",
}