根据HVS的特性和DCT系数的特点,提出了一种基于AC系数的自适应三重水印嵌入方案。仿真实验表明:该算法具有良好的不可见性,并能抵抗剪切操作以及噪声、滤波和JPEG压缩等常见的信号处理,表现出较强的鲁棒性。
According to the characteristics of HVS and DCT coefficient, an adaptive triple--water-marking algorithm embedded in triple AC coefficients is proposed. Simulation results show that the algorithm is good at perceptual transparency as well as robustness against common signal processing such as cut operations, noise, filtering and JPEG compression.