Steganalysis of two least significant bits embedding based on least square method

@article{Niu2009SteganalysisOT,
  title={Steganalysis of two least significant bits embedding based on least square method},
  author={Changming Niu and Xingming Sun and Jiaohua Qin and Zhihua Xia},
  journal={2009 ISECS International Colloquium on Computing, Communication, Control, and Management},
  year={2009},
  volume={3},
  pages={124-127}
}
The purpose of steganalysis is to detect the existence of the hidden messages. In this paper, a steganalysis algorithm against two least significant bits steganography is proposed in order to estimate the hidden message length in images. In the method, firstly we estimate an approximately original image through a local masked estimation function. Then we construct a weighted stego image by extending the definition which was proposed in LSB steganalysis to 2LSB. Finally, detection equation is… CONTINUE READING

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