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An Improved Unblocking Images Watermarking Algorithm Based on DWT and SVD(PDF)

《哈尔滨理工大学学报》[ISSN:1007-2683/CN:23-1404/N]

Issue:
2009年05期
Page:
35-38
Research Field:
计算机与控制工程
Publishing date:

Info

Title:
An Improved Unblocking Images Watermarking Algorithm Based on DWT and SVD
Author(s):
SHI Jing; LIN Ke-zheng; QIN Li-ping
School of Computer Science and Technology; Harbin University of Science and Technology; Harbin 150080; China
Keywords:
robustness watermark wavelet transform singular value decomposition unblocking
PACS:
TP309.7
DOI:
-
Abstract:
In order to improve the invisibility and robustness of watermark,a new improved image watermarking algorithm based on DWT and SVD was presented.Firstly wavelet transform was adopted on the carrier,then did singular value decomposition after unblocking,embed watermark on chosen data according to the theory of self-adaptive.It was a blind watermarking algorithm.The result of experiments showed that this algorithm enhanced the watermarking robustness and improved the precision.At last,compared with the separat...

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Last Update: 2009-12-16