一种基于图像内容的半易损水印算法的研究  

Research of a Semi-fragile Watermarks Algorithm Based on Image Content

作　　者：王娜[1] WANG Na(Department of Information Engineering,Liaoning Construction Vocational College,Liaoyang 111000)

机构地区：[1]辽宁建筑职业学院信息工程系,辽阳111000

出　　处：《计算机与数字工程》2018年第10期2123-2126,共4页Computer & Digital Engineering

摘　　要：数字水印技术广泛应用于多媒体,特别是图像内容的认证中,同时得到了人们越来越多的重视。对数字水印技术进行了研究,提出了一种基于图像内容的半易损水印算法,重点讨论了基于内容的水印生成、嵌入和提取的方法。算法利用伪随机序列调制水印信号,选择图像的低频区域嵌入水印,进而使水印的安全性得到了很大的提高。通过研究可以得出,该算法有着很好的鲁棒性和篡改检测能力,具有一定的实用性。Digital watermarking technology is widely applied to multimedia, especially for image content authentication, also gets more and more attention. Digital watermarking technology is studied, there is a method to be proposed which is Semi-fragile wa-ermarking technology based on image content, and there are some methods to be mainly discussed, for example, watermark generation based on content, embedding and extraction. Algorithm using pseudo random sequence modulation watermark signal, selects the low frequency area of the image embedded watermark, which makes the watermark security has been greatly improved. Through research can be concluded that the proposed algorithm has good robustness and tamper detection capability, has a certain practicality.

关 键 词：半易损水印 图像内容 人类视觉系统 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]