A multiple-level visual secret-sharing scheme without image size expansion

Visual cryptography

Moni Naor, Adi Shamir · Lecture notes in computer science · 1995 · 1.8K citations · Full text

Computing, Computer Science, Mathematics +7

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New visual secret sharing schemes using probabilistic method

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Chang-Chou Lin, Wen‐Hsiang Tsai · Pattern Recognition Letters · 2002 · 258 citations

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Image Size Invariant Visual Cryptography

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Computing, Computer Science, Computer Vision +5