Blind Watermark Algorithms Based on HVS in DCT Domain
Ma Hong · Journal of Sichuan University · 2005
Two blind watermark algorithms based on HVS in DCT domain are proposed. In these algorithms, a well-known chaotic system tent-map is used to generate two chaotic sequence as a key of embedding. For the higher robustness, the authors use the theory of HVS to decide the embedding strength under low distortion. Two blind watermark algorithms are testified both show good performance.