根据HVS的特性和DCT系数的特点,提出了一种基于DC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,并且在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 the characteristics of HVS and DCT coeffciem, an adaptive algorithm embedded in DC coelfficient is proposed. Sim- ulation results show that the algorithm is good at perceptual tramparency as well as robustness against common signal processing such as cut operations, noise, filtering and JPEG compression.