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    题名: A verifiable and recoverable secret image sharing mechanism
    作者: 詹啟祥;Chan, Chi-Shiang
    贡献者: 資訊多媒體應用學系
    关键词: secret sharing, camouflage, verifiable, reversible, magic matrix
    日期: 2011
    上传时间: 2012-11-26 15:10:10 (UTC+8)
    摘要: Verifiability is essential for a secret sharing approach which allows the involved participants to detect cheaters during the secret retrieval process. In this article, we propose a verifiable secret image sharing scheme that can not only resist dishonest participants but can also satisfy the requirements of loss less and camouflage. The new approach conceals the shadows into a pixel pair of the host image by adding or subtracting a pixel value by 1. Consequently, the embedding alteration can be reduced to preserve the fidelity of the shadow image. Recoverability is a practical essential for protecting the valuable host image from being distorted. After the authorized participants retrieve a loss less secret image, they can remove the shadows from the shadow images to recover the unmarked host image. The experimental results exhibit that the proposed scheme can share a large secret capacity according to the threshold t and retain superior quality of around 52 dB.
    關聯: Proceedings - International Symposium on Parallel and Distributed Processing with Applications, ISPA 2011
    显示于类别:[行動商務與多媒體應用學系] 期刊論文


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