基于小波变换和矢量变换的数字水印技术

A Digital Watermarking Algorithm Based on Wavelet Transform and Vector Transform

数字水印技术是数字产品产权保护的有效手段之一。根据小波变换和矢量变换的特点,利用人眼视觉特性,对原始静态图像的水印嵌入进行了研究,提出了一种水印嵌入算法,实现了在原始静态图像上嵌入二值图像水印,水印检测为恢复性检测。实验结果表明,该方法能很好地保持图像质量,并且在抗常规的信号处理如加噪、滤波及有损压缩方面表现出良好的稳健性。

This paper proposes a binary image digital watermarking algorithm based on wavelet transform and vector transform.Experimental results show that this algorithm keep the image quality good,and have better robustness on common signal processing such as additire noise,filtering and lossy compression.