National Changhua University of Education Institutional Repository : Item 987654321/1729
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 6507/11669
造访人次 : 30075695      在线人数 : 682
RC Version 3.2 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜寻范围 进阶搜寻

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ir.ncue.edu.tw/ir/handle/987654321/1729

题名: A Steganography Method for Digital Images Using Coefficient Analysis
作者: Po-Yueh Chen;Yue-Chi Tseng
贡献者: 資訊工程學系
关键词: Steganography
DWT
Security
日期: 2006-05
上传时间: 2010-11-12T07:14:08Z
摘要: In this paper, performing image steganography on frequency domain in stead of space domain is analyzed. Image steganography is a new data hiding scheme which protects the essential information embedded in an image. The object is to hide as many bits as possible while maintaining certain image quality (in terms of Peak Signal-to-Noise-Ratio, PSNR). By embedding the essential information in the high frequency parts of the DWT coefficients and keep the low frequency part unchanged, we can exploit the characteristic of DWT and protect the embedded information more securely since human eyes are much less sensitive to high frequency signals.
關聯: 資訊管理學術與實務研討會論文集, 2006:114-119
显示于类别:[資訊工程學系] 期刊論文

文件中的档案:

档案 大小格式浏览次数
陳伯岳.pdf548KbAdobe PDF1127检视/开启


在NCUEIR中所有的数据项都受到原著作权保护.

 

DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回馈