基于指纹特征数据的水印技术研究

Digital Watermark Research Based on Fingerprint Feature Data

传统水印技术的水印数据主要有两种:伪随机序列(一维)和二值图像(二维)。本文通过分别对图像的R,G,B信道嵌入水印信息,提出了一种将256级灰度的指纹图像嵌入到宿主图像的算法,宿主图像可以是256级灰度图像,也可以是24位的真彩图像。通过实验表明该算法具有良好的鲁棒性。

There are two kinds of watermark data in traditional digital watermark, one is the pseudo-random sequence （one dimension）, the other is binary image（two dimension）. In this paper , we propose a new algorithm to insert 256gray-scale fingerprint images to original images through inserting watermark information to each channel of R,G, and B of the original image , and the original image can be both gray-scale image or color image. The experiment results show this algorithm has a good robustness