NDLI: Research on digital watermark of combination of wavelet and balanced multiwavelet transform

Content Provider	IEEE Xplore Digital Library
Author	MingXiang Zang MingXin Lu JianGuo Jiang XiaoXu Miao
Copyright Year	2011
Description	Author affiliation: School of Computer Science and Technology Xidian University, Xi'an, Shaanxi, China (MingXiang Zang; MingXin Lu; JianGuo Jiang; XiaoXu Miao)
Abstract	Based on wavelet and balanced multiwavelet transformation, a watermarking algorithm for gray image is proposed in this paper. First the low frequency area is obtained by decomposing the original image by wavelet, which is further decomposed by balanced multiwavelet. Then the high-frequency coefficients with highest scale are chosen as watermark embedded carrier. The normalization of gray watermarked image has greatly reduced the amount of data. The algorithm adopts additive principle to embed watermark. This algorithm has the advantages of wavelet which can concentrate energy easily in the low frequency area and characters of balanced multiwavelet transform which can distribute energy averagely. This algorithm is generally applicable of the gray watermark system. Experimental results show that this algorithm has a good performance of watermark both in the robustness and the invisibility.
Starting Page	3199
Ending Page	3202
File Size	377077
Page Count	4
File Format	PDF
ISBN	9781612847719
e-ISBN	9781612847740
DOI	10.1109/ICMT.2011.6003044
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-26
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Balanced Multi-wavelet Transform Wavelet transform Signal processing algorithms Watermarking Robustness Discrete wavelet transforms Frequency domain analysis Gray image
Content Type	Text
Resource Type	Article

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