【摘要】 利用小波变换域中人眼的视觉特性,提出了一种提取水印时不需要原始图像的数字图像水印算法。给出了一种基于余数的水印嵌入公式,并研究了算法中的参数估计。仿真表明,这种算法实现简单,能较好地平衡数字水印不可见性和稳健性的要求。更多还原

【Abstract】 By making use of human sight property in wavelet domain,a binary image watermark algorithm without using the original image in the watermark extraction has been presented.This paper put forwards a new embedding method based on residue,and studies the parameter estimate of the algorithm.Moreover,the experiments show that this algorithm can be carried out easily and obtains a good balance between the unobtrusiveness and robustness of the watermark.更多还原