A new watermarking for image copyright protection based on SVD-CWT
This paper first analyzed the application of watermarking in copyright protection,then proposed a new robust watermarking algorithm based on dual-tree complex wavelet transform (DT-CWT) by analyzing the advantage of DT-CWT.To prove the superiority of the algorithm,lots of watermark images were chosen to test.The results show that the new algorithm can not only have good transparency,but also increase the capacity of inserted information greatly.The additional advantage of the proposed technique is its robustness against the most of common attacks.It is a good method which will achieve the goal of protecting the copyright and is worth to research and promote.
Watermarking image copyright protection dual-tree complex wavelet transform robustness transparence
Guo Lei fang Zhou Jianyong
Business School University of Shanghai for Science and Technology,Shanghai,China
国际会议
太原
英文
54-57
2011-02-26(万方平台首次上网日期,不代表论文的发表时间)