Spectrum spreading algorithm for efficient embedding of watermarks
In K. Yeo, Hyoung-Joong Kim · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2001
Time-domain and frequency-domain spreading algorithms are presented in this paper. However, detection algorithm does not rely on correlation method, but based on patchwork method. Time-domain algorithm can survive translation and clipping attacks. Frequency-domain algorithm is robust against compression attack. Embedding and detection functions are presented. Simulation results show the effectiveness of the algorithms.