Tapasi Bhattacharjee

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In this paper, we propose a novel and simple (2, n) secret sharing scheme with precise reconstruction for grayscale, binary and color image. The share construction phase is based on pixel division and XOR operation. The reconstruction is based on XOR and OR operation. The proposed scheme has no pixel expansion and can reconstruct the secret image precisely.(More)
This paper presents an image secret sharing method based on some random matrices that acts as a key for secret sharing. The technique allows a secret image to be divided into four image shares with each share individually looks meaningless. To reconstruct the secret image all four shares have to be used. Any subset m (1< m ≤ 4) shares cannot get sufficient(More)
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