Region Incrementing Visual Cryptography Scheme with Same Contrast

LI Shundong; LI Jiliang; WANG Daoshun

doi:10.1049/cje.2016.06.002

Volume 25 Issue 4

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LI Shundong, LI Jiliang, WANG Daoshun, “Region Incrementing Visual Cryptography Scheme with Same Contrast,” Chinese Journal of Electronics, vol. 25, no. 4, pp. 621-624, 2016, doi: 10.1049/cje.2016.06.002

Citation:

LI Shundong, LI Jiliang, WANG Daoshun, “Region Incrementing Visual Cryptography Scheme with Same Contrast,” Chinese Journal of Electronics, vol. 25, no. 4, pp. 621-624, 2016, doi: 10.1049/cje.2016.06.002

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Region Incrementing Visual Cryptography Scheme with Same Contrast

doi: 10.1049/cje.2016.06.002

1.
School of Computer Science, Shaanxi Normal University, Xi'an 710119, China;
2.
Department of Computer Science and Technology, Tsinghua University, Beijing 100084, China

Funds: This work is supported by the National Natural Science Foundation of China (No.61070189, No.61272435, No.61170032, No.61373020).

Received Date: 2014-06-03
Rev Recd Date: 2014-08-31
Publish Date: 2016-07-10

Abstract

Abstract

In binary Region incrementing visual cryptography schemes (RIVCSs), the secrets of multiple secrecy regions can be gradually revealed by human visual system. A characteristic of the existing binary RIVCSs different from traditional binary Visual cryptography schemes (VCSs) is that, the contrasts for different revealed regions are different while traditional binary VCSs have same contrast. To keep the quality (contrast) of recovered image compatible with the traditional VCS, we use integer linear programming to design a binary (k,n)-RIVCS with same contrast for all secrecy regions in this paper. Experimental results demonstrate that our method is feasible and effective. The trade-off is that our scheme involves a larger pixel expansion.
- Region incrementing,
- Visual cryptography,
- Linear programming,
- Visual secret sharing

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References(13)

References

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