基于小波与延拓矩阵范数的无损数字水印方法研究

A Lossless Watermarking Approach via Wavelets and Extended Matrix Norms

利用延拓矩阵范数的理论与性质,并结合矩阵范数与图像小波变换低频分量稳健性的特点,提出了一种低复杂度的无损水印方案.仿真结果证明,该方法具有计算简单,对于各种攻击均表现出很强的鲁棒性与安全性,并且不破坏图像数据等特点,是一种有效的版权保护方法.

Using robust property of matrix norms and DWT for low frequency component, a new lossless watermarking method with low computational complexity via the theory and property and wavelet is proposed. The simulation results demonstrate that this scheme is robust to most of the image processing and attacks, and that it can dramatically save the memory and alleviate considerably the computational burden. It is an effective method for authorization and copyright protection.