Visual secret sharing scheme (VSS) based on the concept of random grid (RG) that suffers from low visual quality of the decrypted secret. In this work a (2, n) RG based VSS has been proposed to improve the contrast. The proposed scheme supports the traditional stacking decryption method. To improve the visual quality further a decryption algorithm is proposed. The experimental result and comparison of visual quality with related methods has shown that the proposed schemes perform well.

Improving the Visual Quality of (2, n ) Random Grid Based Visual Secret Sharing Schemes

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Improving the Visual Quality of (2, n ) Random Grid Based Visual Secret Sharing Schemes