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This study presents a novel scheme called a dual verifying (t, n) visual secret sharing scheme. In our proposed scheme, each participant receives a public key and an encrypted shadow instead of the original secret image through the public communication network. There are three goals achieved. The first is to generate a reconstructed secret image, which satisfies the general criteria high security,...
In this paper, we propose a novel scheme called a self-verifying visual secret sharing scheme, which can be applied to both grayscale and color images. This scheme uses two halftone images. The first, considered to be the host image, is created by directly applying a halftoning technique to the original secret image. The other, regarded as the logo, is generated from the host image by exploiting the...
In 2007, Wang et al. proposed two visual secret sharing schemes based on Boolean operations. One is a probabilistic (2, n) secret sharing (SS) scheme, called (2, n) ProbVSS scheme, for binary images and the other is a deterministic (n, n) SS scheme for grayscale images. Their schemes can solve the problems of computational complexity and pixel expansion at the same time. To provide a (2, n) ProbVSS...
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