A further study on steganalysis of LSB matching by calibration

@article{Li2008AFS,
  title={A further study on steganalysis of LSB matching by calibration},
  author={Xiaolong Li and Tieyong Zeng and Bin Yang},
  journal={2008 15th IEEE International Conference on Image Processing},
  year={2008},
  pages={2072-2075}
}
In this paper, based on a careful investigation on the calibration (downsample) technique, we improve two detectors for detecting LSB matching: calibrated HCF COM and calibrated adjacency HCF COM. Instead of using the COM (center of mass) of the HCF (histogram characteristic function), we consider the ratio of the histogram's DFT coefficients of the image to the corresponding coefficients of the down-sampled image. Moreover, we propose to down-sample only for non-oscillating pixels. With a same… CONTINUE READING
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