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The Application of Wavelet & DCSK Watermarking in Multimedia Security

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3 Author(s)
Xinghao Jiang ; Sch. of Inf. Security Eng., Shanghai Jiaotong Univ., Shanghai ; Tanfeng Sun ; Jianhua Li

Nowadays digital Multimedia copyright protection is up against austere challenge. The watermarking and encryption used together is more and more important in digital multimedia security (DMS) application. So in this paper, a novel approximation zero-tree-wise wavelet watermarking with difference chaos shift key coding encryption method of DMS information security is present. Firstly the DMS information is got by proprietor or authority as initial watermarks. Then encrypt key is generated by DMpsilas data. To encrypt initial watermarks' information is to apply chaos sequence as final watermarks' information. Then the final watermark is embedded into the approximation zero-tree-wise wavelet coefficients of the image by digital chaos shift key (DCSK) coding method that makes watermarkspsila information more secure and secret. The Chaos key is generated automatically by image decomposed with LUT mapped. As a result, approximation zero-tree-wise wavelet with DCSK coding watermarking is more secure and secret characteristic in protecting DMS information. Furthermore blind-detection watermarking can be achieved, encrypt key can be regain by DM data. That method possesses research value.

Published in:

Signal-Image Technologies and Internet-Based System, 2007. SITIS '07. Third International IEEE Conference on

Date of Conference:

16-18 Dec. 2007