一种基于复数小波变换的矢量图形数字水印算法

The Robot's Sampling System Designed Based on Interval Estimation

目前有很多基于小波变换的图像载体上的水印算法,但是针对矢量图形载体上的讨论很少。文中提出了一种基于双树复数小波变换域的图形鲁棒性数字水印算法。恢复或检测水印时需要原始图形数据,是一种非盲水印算法。借助原始图形数据,水印算法的稳健性能更好一些。该算法很好地结合了复数小波多分辨率的优良特性,在矢量图形载体上进行有意义标识图像水印的嵌入和提取。并通过实验证明嵌入水印的图形有较好的抗移动,噪声攻击,放缩等鲁棒性。

Though many watermarking ways of the images based on the Discrete Wavelet Transform , few of them discuss the issue that which based on vector graphics. The paper raised the way of robust watermarking of the 2D vector graphics based on the Complex Wavelet. It is a non - blind watermarking . When recover or detect the graphics watermarking , original graphics datas must be offered. In virtue of original graphics tiaras,it is more robust. The way is very good with the fine character of the Dual - tree Complex Wavelet. The significative images as watermarking is based on vector graphics. Experiments proved that the way for embedded watermarking have better moving, plus noise, or scaling, robustness.