以改进影像逼真度为约束条件的变换域水印嵌入强度

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Upper limit of embedded strength of transformation domain digital watermarking under invisible target of improved image fidelity constraint

YIN Zhong-hai1,2;JIAN Jian-feng1;ZHOU Li-hua1;CHEN Jie1;JI Hong1

(1. The Ministry of Edu. Key Lab. of Computer Network and Infor. Security, Xidian Univ., Xi′an 710071， China ; 2. School of Science, Air Force Engineering Univ., Xi′an 710077， China )

Received:1900-01-01 Revised:1900-01-01 Online:2005-06-20 Published:2005-06-20

Abstract

Abstract: The upper limit of embedded strength of transformation domain digital watermarking under the invisible target of improved image fidelity constraint is discussed. Also, the evaluation expression of embedded strength under the above constraint is presented. This conclusion and its inference can be regarded as a sufficient requirement, used to determine the embedding parameters of watermarking such as the embedded strength maxΔFuv and the number of embedded editions r. The experimental results have proved the validity of the conclusion.

Key words: image fidelity, error, watermarking, embedded strength

CLC Number:

TP309

YIN Zhong-hai1;2;JIAN Jian-feng1;ZHOU Li-hua1;CHEN Jie1;JI Hong1.

Upper limit of embedded strength of transformation domain digital watermarking under invisible target of improved image fidelity constraint

[J].J4, 2005, 32(3): 339-343.

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Upper limit of embedded strength of transformation domain digital watermarking under invisible target of improved image fidelity constraint

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