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Exploring recent advances in random grid visual cryptography algorithms

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Abstract

Visual cryptography scheme is initiated to securely encode a secret image into multiple shares. The secret can be reconstructed by overlaying the shares, making it perceptible to the human visual system. Random grid visual cryptography offers key advantages over traditional visual cryptography such as avoiding pixel expansion and the requirement for intricate codebook design. This paper is intended to conduct a critical analysis and implementation of various algorithms in random grid visual cryptography from 2011 to 2022. The focal parameters of this study are theoretical contrast, experimental contrast and visual quality. Experiments were done on binary images for (k, n) algorithms considering different values of threshold. By implementing and analysing the results, the scheme which gives the optimal result is identified.

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Authors and Affiliations

  1. Department of Computer Science, Mary Matha Arts & Science College, Mananthavady, Wayanad, Kerala, India

    Neetha Francis, A. Lisha & Thomas Monoth

Authors
  1. Neetha Francis
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  2. A. Lisha
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  3. Thomas Monoth
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Contributions

Authors 1 & 2 equally contributed to the manuscript and Author 3 supervised the work. All authors reviewed the manuscript.

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Correspondence to Neetha Francis.

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Francis, N., Lisha, A. & Monoth, T. Exploring recent advances in random grid visual cryptography algorithms. J Supercomput 80, 23205–23224 (2024). https://doi.org/10.1007/s11227-024-06334-z

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  • DOI: https://doi.org/10.1007/s11227-024-06334-z

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