A new algorithm of gray watermark embedding

Authors:
Yong-zeng Shen;Min-jie Zhang;Feng Liu
Affiliations:
The College of Information Engineering, Zhejiang University of Technology, Hangzhou, China;The College of Information Engineering, Zhejiang University of Technology, Hangzhou, China;The College of Information Engineering, Zhejiang University of Technology, Hangzhou, China
Venue:
ICAT'06 Proceedings of the 16th international conference on Advances in Artificial Reality and Tele-Existence
Year:
2006

Citing 4
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Abstract

The problems of the digital information transmission safety, its’ copyright protection etc. are seriously increase. Digital watermark is one of the good solutions for many problems mentioned above. Generally the watermark information is a one-dimension random signal. Two-dimension gray watermark is difficult to guarantee the robustness of the information embedding. Put a new kind of discrete wavelet transform (DWT) and the singular value decompose (SVD) on two-dimension gray watermark, the watermark becomes very strong robust to the compression, noise, low pass filter, high pass filter and median filter. It is useful for the safety of digital information transmission and its copyright protection.