一种频率域数字水印算法

A Frequency Domain Digital Watermarking Algorithm

在Amold加密置乱技术基础上利用DCT的能量压缩能力结合DWT的多分辨率特性设计了一种数字水印算法,最后通过对嵌入水印图像进行图像加噪、几何切割和JPEG压缩等各种抗攻击实验。实验结果表明,该算法具有较好的抗压缩、抗剪切性和抗噪性。

Drawing on Amold scrambling technology, making use of DCT＇s collecting energy and DWT＇s multi-resolution characteristics, the present study has designed a Digital watermarking Algorithm. The findings of the experiment suggest that it has the fairly good resistant ability of compression, cutting and noise.