一种基于离散小波变换的数字水印算法  

A Digital Image Watermarking Algorithm Based on Discrete Wavelet Transformation

作　　者：程雄[1] 周凯[2] 吴旦[3] 

机构地区：[1]武汉理工大学计算机学院,湖北武汉430070 [2]中国人民武警察部队特种警察学院,北京100621 [3]武汉大学测绘遥感信息工程国家重点实验室,湖北武汉430070

出　　处：《教育技术导刊》2008年第3期115-117,共3页Introduction of Educational Technology

摘　　要：提出了一种基于离散小波变换的数字图像水印算法。实验结果证明,该算法不仅具有透明性、安全性和稳定性而且进行图像处理时具有较强的鲁棒性。This article proposed one kind of digital image watermark algorithm based on the discrete wavelet transformation. Apply the DWT principle to the process of inserting the watermark in the wavelet transformation territory.After passes through three level of DWT, joins the symbolized image watermark in the third level of wavelet innertube coefficient.Experimental result prove that,The algorithm has the strong Robustness to the common imagery processing attack,And can resist common imagery processing method and the common noise jamming well.

关 键 词：离散小波变换 数字水印 图像 不可见性 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]