supported by the National Natural Science Foundation of China (No.60702025);the Research Fund for the Doctoral Program of Higher Education (No.20070613024);the Sichuan Youth Science & Technology Foundation of China (No.07ZQ026-004)
Compared with the Arnold transform,the image scrambling method based on bit shuffling pixels is much more secure,and has higher efficiency and speed.However,the key space of this bit shuffling pixels based method is t...
supported by the National Natural Science Foundation of China (Grant Nos. 60702025, 60970122);the Research Foundation for Doctoral Program of Higher Education (RFDP) (Grant No. 20070613024);Sichuan Youth Science and Technology Foundation of China (Grant No. 07ZQ026-004);the Southwest Jiaotong University Doctors Innovation Funds (Grant No. 2010)
Many previous (semi-) fragile audio watermarking schemes adopt binary images as watermarks, which reduce the security of watermarking systems. On the other hand, the content-based or feature-based second generation ...
The National Science Foundation of China (NSFC) (No.60702025);the Research Fund for the Doctoral Program of Higher Education (RFDP)( No.20070613024);Sichuan Youth Science & Technology Foundation of China (No. 07ZQ026-004);Southwest Jiaotong University Development Foundation (No.2006A04)
Taking full advantage of the randomicity of chaotic system and its extreme sensitivity to the initial value, a new chaotic fragile watermarking algorithm is proposed. In the algorithm, the location key is looked as a ...