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。
Abstract: According to rithm embedded in ceptual transparenc filtering and JPEG AC y as the coef wel characteristics of HVS ficient is proposed. Sim and DCT coefficient, an ada ulation results show that the 1 as robustness against common signal processing such compression. ptive watermarking algo- algorithm is good at per- as cut operations, noise,