NDLI: A Robust Wavelet-Domain Watermarking Algorithm for Color Image

Content Provider	IEEE Xplore Digital Library
Author	Xi-Ping He Qing-Sheng Zhu
Copyright Year	2006
Description	Author affiliation: Coll. of Comput., Chongqing Univ. (Xi-Ping He; Qing-Sheng Zhu)
Abstract	This paper presents a chaos-based watermarking algorithm in the wavelet transform domain for color images. In contrast to conventional approaches, in which the wavelet transform coefficient is used for watermarking and the whole image is transformed into frequency coefficient, the wavelet transform is applied only to local subblock. DWT is used to transform the subimage, which is extracted from the original image randomly. And then the watermark image is adaptively embedded into part of the subband coefficients by computing their statistic characteristic. Without using the original image, the watermark is extracted by computing the statistic summation of the watermarked detail coefficients, where the threshold is chosen. Simulation results show that the proposed method possesses high fidelity and high robustness, especially under the typical attack of geometric operations
Sponsorship	IEEE Syst., Man and Cybernetics Hebei Univ.
Starting Page	3940
Ending Page	3943
File Size	383189
Page Count	4
File Format	PDF
ISBN	1424400619
DOI	10.1109/ICMLC.2006.258750
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-08-13
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Robustness Watermarking Color Wavelet transforms Statistics Chaos Wavelet domain Frequency Discrete wavelet transforms Embedded computing Statistic characteristic Adaptive watermarking Wavelet transform Chaotic maps
Content Type	Text
Resource Type	Article

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