基于DWT域的图像数字水印算法  

Imagine Digital Watermarking Algorithm Based on DWT

作　　者：陆宇光[1,2] 龚声蓉[1] 

机构地区：[1]苏州大学计算机科学与技术学院,江苏苏州215021 [2]常州工学院计算机信息工程学院,江苏常州213001

出　　处：《电脑知识与技术》2008年第10期190-192,共3页Computer Knowledge and Technology

摘　　要：提出了一种基于DWT域的图像数字水印算法。通过对宿主图像、经过Amold变换加密后的水印图像分别进行多分辨率小波分解，达到自适应嵌入水印信息的目的。实验结果表明，该方法嵌入的数字水印不但具有较好的不可见性，而且对图像处理有较好的鲁棒性。A algorithm with image digital watermarking based on DWT is proposed. The multi-resolution wavelet de-compositice of both the host image and the watermark image which is transformed and encrypted by arnold for the self adapting embedding process is finished. The experimental results demonstrate that the embedded watermarking is invisible and has good ro-bustness against image processing.

关 键 词：数字水印 DWT 图像置乱 

分 类 号：TN957[电子电信—信号与信息处理]