摘要
提出一种新的基于Arnold图像置乱和DWT相结合的数字图像水印算法。这种算法充分利用了小波变换的特点,把原始图像及水印图像塔式分解,在多分辨率分解后的相同频段来嵌入水印信息。算法实用有效,经实验验证,这种算法能够抵抗常见的各种攻击,水印图像的不可见性和鲁棒性都得到了提高。
A new digtial watermark algorithm based on Arnold image-scrambling and DWT is presentded. The algorithm makes use of the characteristics of wavelet transform. The original image and watermarks are pyramidal transformed, and watermarks were embed in the same frequency after muhiresolution. The algorithm is practical and efficient. Experiments results show that kinds of attacks could be fighted back and it has a better imperceptibility and stabilization.
出处
《科学技术与工程》
2008年第19期5412-5416,共5页
Science Technology and Engineering
基金
甘肃省自然科学基金项目(3ZS051-A25-033)
兰州理工大学优秀青年教师资助计划资助
