A Weighted Stego Image Detector for Sequential LSB Replacement

Andrew  D. Ker

1st International ICST Workshop on Data Hiding for Information and Multimedia Security

Research Article

A Weighted Stego Image Detector for Sequential LSB Replacement

Cite: BibTeX Plain Text

@INPROCEEDINGS{10.1109/IAS.2007.71,
    author={Andrew  D. Ker},
    title={A Weighted Stego Image Detector for Sequential LSB Replacement},
    proceedings={1st International  ICST Workshop on Data Hiding for Information and Multimedia Security},
    publisher={IEEE},
    proceedings_a={DHIM},
    year={2007},
    month={9},
    keywords={Detectors  Digital images  Embedded software  Image analysis  Information security  Laboratories  Payloads  Pixel  Steganography  Testing},
    doi={10.1109/IAS.2007.71}
}

Andrew D. Ker
Year: 2007
A Weighted Stego Image Detector for Sequential LSB Replacement
DHIM
IEEE
DOI: 10.1109/IAS.2007.71

Andrew D. Ker¹^,*

1: Oxford University Computing Laboratory Parks Road, Oxford OX1 3QD, England

*Contact email: adk@comlab.ox.ac.uk

Abstract

We describe a simple modification of the so-called weighted stego image (WS) steganalysis method, due to Fridrich and Goljan, to detect sequential replacement of least significant bits. The most sensitive methods for the detection of bit replacement do not work well when the payload is concentrated at the start of the cover instead of being spread evenly over it, so this detector fills a gap in the literature. Experimental results show that the adapted method gives sequentially-embedded payload estimation typically 10 times more accurate than the standard WS method.

Keywords: Detectors Digital images Embedded software Image analysis Information security Laboratories Payloads Pixel Steganography Testing

Published: 2007-09-10
Publisher: IEEE
Modified: 2011-08-03 22:00:00 UTC

: http://dx.doi.org/10.1109/IAS.2007.71