基于DCT的暗水印技术的研究与应用  

Research and application of blind watermark based on DCT

作　　者：张蕊怡 袁嵩[1] Zhang Ruiyi;Yuan Song(School of Computer Science and Technology,Wuhan University of Science and Technology,Wuhan 430065,China)

机构地区：[1]武汉科技大学计算机科学与技术学院,武汉430065

出　　处：《现代计算机》2023年第5期22-27,共6页Modern Computer

基　　金：国家级大学生创新创业训练计划项目(202210488016):基于云桌面的暗水印技术研究与应用。

摘　　要：各大公司或者企业越来越注重内部电子文件资料的安全性问题。针对电子文件形式的资料泄露问题,研究了一种基于DCT变换的数字水印技术,开发了一款辅助用户添加与提取暗水印的系统。该系统使用了Hough变换与Arnold置乱算法,提供了一种生成不严重干扰用户视觉,又能够抗提取、抗旋转、抗裁剪等一系列攻击的暗水印应用方案,该方案在保障公司内部电子文件不泄露的同时也兼顾了个人信息的安全性问题,满足了实际生产环节中公司或者企业保护电子文件的需求。Most companies or enterprises pay more and more attention to the security of internal electronic documents.To solve the problem of information leakage in electronic documents,this paper proposes a method about digital watermarking technol⁃ogy based on DCT transform,and develops a system to assist users in adding and extracting blind watermarks.The system uses Hough transform and Arnold scrambling algorithm to provide a blind watermark application scheme which does not seriously dis⁃turb the user’s vision,but also can resist a series of attacks such as extraction,rotation,and cropping.This scheme not only ensures that the company’s internal electronic documents are not leaked,but also takes into account the security of personal information.It meets the needs of the companies or enterprises in real environment.

关 键 词：暗水印 数字水印 DCT变换 鲁棒性 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]