A novel mapping scheme for steganalysis

Authors:
Licong Chen;Yun Q. Shi;Patchara Sutthiwan;Xinxin Niu
Affiliations:
Information Security Center, Beijing University of Posts and Telecommunications, Beijing, P.R. China,New Jersey Institute of Technology, Newark, NJ and Fujian Normal University, Fujian, P.R. China;New Jersey Institute of Technology, Newark, NJ;New Jersey Institute of Technology, Newark, NJ;Information Security Center, Beijing University of Posts and Telecommunications, Beijing, P.R. China
Venue:
IWDW'12 Proceedings of the 11th international conference on Digital Forensics and Watermaking
Year:
2012

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Abstract

Recently the research on steganalysis for breaking HUGO has been further moved ahead. A novel mapping scheme is reported in this paper. Through a Huffman coding like procedure, this scheme can lower the feature dimensionality from 625 to 120 generated from one residual image as a 4th order co-occurrence matrix is considered. Two experiments have been reported to demonstrate its effectiveness. In breaking the HUGO, the proposed mapping scheme has been applied to the frame work of the state-of-the-art [13] with some minor modification. With a total number of 15,840 features the new method can achieve 87.17% accuracy in BOSSbase ver. 0.92 at 0.4 bpp, outperforming the state-of-the-art.