一种基于小波域的盲水印算法

提出了一种基于小波变换后频域系数的特征以及水印图像数据的奇偶性盲水印算法。该算法先将图像进行两级小波变换，根据LL2中数据特点和水印数据的奇偶性在HL2、LH2、HH2嵌入水印。在检测水印的时候，只需要拥有少量数据，就可以完成水印的提取。攻击实验研究表明：此算法具有很好的抗规则剪切、不规则剪切、加噪、压缩的能力，具有很好的鲁棒性。

Blind Watermarking Algorithm Based on Wavelet Domain

A blind watermarking algorithm is presented,which is on the basis of the feature of the wavelet frequency coefficients and the data of the watermarking.In the algorithm,an image is transformed with wavelet,then,according to the characteristics of wavelet coefficient and the watermarking,the watermarking is imbedded into the image.The watermarking can be extracted with a few datas.The results of attacked experiments show the algorithm has very excellent robustness resisting regular cut,irregular cut,noise at...