A verifiable and recoverable secret image sharing mechanism

ASIA unversity > 資訊學院 > 行動商務與多媒體應用學系 > 期刊論文 > Item 310904400/18884

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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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