【摘要】 提出一种新颖的基于小波包分解的自适应数字水印算法。为了提高水印图像的攻击鲁棒性和水印的不可见性,该文提出基于人类视觉特性(HVS)和小波包分解的数字水印算法,同时引入信噪比自适应水印嵌入机制。实验表明:应用该算法对宿主图像嵌入水印可以达到更好的抗攻击鲁棒性和视觉效果。更多还原

【Abstract】 In this paper,we present a novel watermarking method based on wavelet packets transform.To increase the robustness and perceptual invisibility,the algorithm is combined with the Humen Visual System(HVS)and PSNR adap-tiveness.Experimental results show that:using this algorithm,we can emded the marks into the digital image with better robustness and perceptual invisibility.更多还原