Abstract
This work proposes an efficient data hiding scheme for wet paper channel by using a multilayer construction, in which a number of node-bits in different layers are derived from all cover bits and used to carry the secret data. By applying the wet paper coding method to the node-bits and altering the changeable cover bits, the node-bits are modified into their desired values and the secret data are embedded in a layer-by-layer manner. An equilibration mechanism is also introduced to flip the denser changeable cover bits with higher probability. This way, paper folding method is equivalent to a special case of the proposed scheme, and a family of data hiding methods with more flexible relative payload and higher embedding efficiency can be generated.
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Acknowledgments
This work was supported by the National Natural Science Foundation of China under Grants 61073190 and 61071187, the Research Fund for the Doctoral Program of Higher Education of China under Grant 20113108110010, the Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning, and Shanghai Pujiang Program under Grant 13PJ1403200.
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Zhang, X., Qin, C. & Shen, L. Efficient wet paper embedding for steganography with multilayer construction. Ann. Telecommun. 69, 441–447 (2014). https://doi.org/10.1007/s12243-013-0393-4
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DOI: https://doi.org/10.1007/s12243-013-0393-4