Abstract
A novel video watermark algorithm based on Shamir secret sharing scheme for multiusers is proposed. It divides the field of the host video signal into multisegments, and then splits the original watermark into corresponding number shares with the Shamir’s secret sharing algorithm. Each share of the watermark is embedded into the corresponding segment of the host video signal. In this scheme, only the user that has sufficient authorization can reveal the genuine watermark directly; other users could obtain shadow watermarks merely. Experimental results show the proposed watermarking scheme can offer good video quality and is robust against various degree attacks.
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© 2009 Springer-Verlag Berlin Heidelberg
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Xiao, S., Ling, H., Zou, F., Lu, Z. (2009). Secret Sharing Based Video Watermark Algorithm for Multiuser. In: Kim, HJ., Katzenbeisser, S., Ho, A.T.S. (eds) Digital Watermarking. IWDW 2008. Lecture Notes in Computer Science, vol 5450. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-04438-0_26
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DOI: https://doi.org/10.1007/978-3-642-04438-0_26
Publisher Name: Springer, Berlin, Heidelberg
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