一种基于小波变换的灰度数字水印嵌入技术

A digital watermarking technique based on wavelet transform

根据图像小波变换后小波系数的特点,提出了一种新的数字水印嵌入技术。该方法所嵌入的不再是传统的数值序列和二值图像,而是把一幅64×64×8bit的图像作为水印信息嵌入到图像中。实验证明,该水印具有较好的透明性和较好的顽健性。

Based on the characteristics of the wavelet transformed coefficients of images, we propose a new digital watermarking technique. The embedded watermark is a 64×64×8bit image, instead of numerical sequence and binary image. The experiments show that the algorithm has good transparency and robustness.