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Proceedings of International Conference on Computer Science and Information Technology pp 163–170Cite as

Improved Halftone Visual Cryptography by Random Grids

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Part of the book series: Advances in Intelligent Systems and Computing ((AISC,volume 255))

Abstract

Halftone visual cryptography (HVC) is a technique to share secret image into a group of halftone shadows with pleasing visual quality. However, pixel expansion problem is serious in existing HVC schemes. In this paper, a random grid-based HVC scheme is proposed to solve this problem. The proposed method adopts complementary shares to prevent non-relevant information from showing on the decoded image. The size of halftone share generated by the proposed scheme is the same as the original secret image. Extensive experimental results are provided, demonstrating the effectiveness and advantages of the proposed schemes.

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Author information

Authors and Affiliations

  1. College of Information Science and Technology, Jinan University, Guangzhou, 516032, People’s Republic of China

    Zhuoqian Liang

  2. 91630 PLA Troops, Guangzhou, 510320, People’s Republic of China

    Meihua Yang

Authors
  1. Zhuoqian Liang
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  2. Meihua Yang
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Corresponding author

Correspondence to Zhuoqian Liang .

Editor information

Editors and Affiliations

  1. Computer Science and Engineering, SOA University, Bhubaneswar, India

    Srikanta Patnaik

  2. Electronics and Computer Engineering Technology, Indiana State University, Terre Haute, IN, USA

    Xiaolong Li

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© 2014 Springer India

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Cite this paper

Liang, Z., Yang, M. (2014). Improved Halftone Visual Cryptography by Random Grids. In: Patnaik, S., Li, X. (eds) Proceedings of International Conference on Computer Science and Information Technology. Advances in Intelligent Systems and Computing, vol 255. Springer, New Delhi. https://doi.org/10.1007/978-81-322-1759-6_20

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  • DOI: https://doi.org/10.1007/978-81-322-1759-6_20

  • Publisher Name: Springer, New Delhi

  • Print ISBN: 978-81-322-1758-9

  • Online ISBN: 978-81-322-1759-6

  • eBook Packages: EngineeringEngineering (R0)

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