A DUAL SECURE DIGITAL IMAGE WATERMARK ALGORITHM USING WAVELET
A new digital watermark algorithm is presented in this paper,on the one hand which utilizes the character of wavelet fractal coding to resist geometrical transformations, on the other hand which selects real hiding points from hiding candidates randomly according to a chaotic sequence, which is sensitive to initial values and random alike. So the robustness of the algorithm is ensured by two ways, and it is hardly possible to get watermark through unlimited access to the test image because of little mutual information. The experiments prove that the algorithm can resist some kinds of transformations such as clipping, JPEG compression and other geometrical transform, and the performance is better than the zero-tree method.
Digital Watermark Wavelet Fractal Coding HVS Chaotic Sequence
Sumin YANG Jiazhen Wang De-yun Peng Zhengbao Zhang
Department of Computer Engineering, Ordnance Engineering College, Shijiazhuang 050003, China
国际会议
杭州
英文
369-372
2006-10-12（万方平台首次上网日期，不代表论文的发表时间）