Detecting LSB matching by applying calibration technique for difference image
Proceedings of the 10th ACM workshop on Multimedia and security
Detecting LSB matching by characterizing the amplitude of histogram
ICASSP '09 Proceedings of the 2009 IEEE International Conference on Acoustics, Speech and Signal Processing
Steganalysis Based on Difference Image
Digital Watermarking
Steganalysis by subtractive pixel adjacency matrix
IEEE Transactions on Information Forensics and Security
SVD-based universal spatial domain image steganalysis
IEEE Transactions on Information Forensics and Security
IH'05 Proceedings of the 7th international conference on Information Hiding
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In this paper, a novel detector for detecting LSB matching steganography in gray-scale images is presented. We extend the previously introduced detectors, the one based on the center of mass of the histogram characteristic function (HCF-COM) and its calibrated version (C-HCF-COM), in two aspects. On one hand, to carry out detection, HCF-COM and C-HCF-COM computed from the first and second order difference images are combined together to build a feature set. On the other hand, the calibration used in C-HCF-COM, i.e., the downsample of original image, is changed to the Gaussian filtered image. With these extensions, our method significantly improves HCF-COM and C-HCF-COM. Its superiority over some state-of-the-art works is also demonstrated through extensive experiments.