Generalized random grids-based threshold visual cryptography with meaningful shares

@article{Yan2015GeneralizedRG,
  title={Generalized random grids-based threshold visual cryptography with meaningful shares},
  author={Xuehu Yan and Shen Yun Wang and Xiamu Niu and Ching-Nung Yang},
  journal={Signal Processing},
  year={2015},
  volume={109},
  pages={317-333}
}
The meaningful share in visual cryptography (VC) is a desired feature because it can increase the efficiency of management and decrease the suspicion of secret image encryptions. Although the traditional user-friendly random grid (RG)-based VC can produce meaningful shares, with the advantages of no pixel expansion and no need for codebook design, current user-friendly RG-based VCs fail to support the general ( k , n ) threshold and the complementary shares might be required. In this paper, a… CONTINUE READING

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