Multibit versus multilevel embedding in high capacity difference expansion reversible watermarking

@article{Coltuc2012MultibitVM,
  title={Multibit versus multilevel embedding in high capacity difference expansion reversible watermarking},
  author={Dinu Coltuc and Adrian Tudoroiu},
  journal={2012 Proceedings of the 20th European Signal Processing Conference (EUSIPCO)},
  year={2012},
  pages={1791-1795}
}
The classical difference expansion (DE) reversible watermarking expands two times a difference in order to embed one bit of data. The upper limit of such DE schemes in a single embedding level is usually bounded by 1 bpp. In order to obtain more than 1 bpp, several embedding stages are chained. The multibit DE schemes expand n times the difference in order to embed up to log2 n bpp. This paper proposes a multibit extension of the difference expansion reversible watermarking and compares the… CONTINUE READING

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