摘要
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.
出处
《咸阳师范学院学报》
2008年第6期44-47,共4页
Journal of Xianyang Normal University
基金
河南省教育厅自然科学研究基金项目(2008A120006
2008B520025)
关键词
数字水印
Amold置乱
DCT
DWT
Digital Watermarking
Arnold scrambling transformation
DCT
DWT