Size-Adjustable Visual Secret Sharing Schemes(Information Security)

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概要

• 論文の詳細を見る

• Visual secret sharing (VSS) scheme is a perfect secure method that protects a secret image by breaking it into shadows. Unlike other secret sharing schemes, the VSS scheme can be easily decoded by the human visual sight when staking the shadows. We replace a pixel in the secret image by m sub pixels in the shadow image and the value m is called as pixel expansion. In general, most papers are dedicated to find the minimum m for a VSS scheme, i.e. a smaller shadow size. However, it seems that no one studies how to trade the shadow size for the contrast. In this paper, we take the lead in studying size-adjustable VSS schemes such that one can choose appropriate shadow size and the recovered image contrast for practical use.

• 社団法人電子情報通信学会の論文
• 2005-09-01

著者

• Yang Ching-nung

  Department Of Computer Science And Information Engineering National Dong Hwa University

• CHEN Tse-Shih

  Department of Computer Science and Information Engineering, National Dong Hwa University

• Chen Tse‐shih

  National Dong Hwa Univ. Hualien Twn

関連論文

• Size-Adjustable Visual Secret Sharing Schemes(Information Security)

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