National Changhua University of Education Institutional Repository : Item 987654321/10127
English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 6507/11669
造訪人次 : 30015389      線上人數 : 355
RC Version 3.2 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜尋範圍 進階搜尋

請使用永久網址來引用或連結此文件: http://ir.ncue.edu.tw/ir/handle/987654321/10127

題名: A Study of Image Steganography Based on DWT Coefficient Analysis
作者: Chen, Po-Yueh;Tseng, Yue-Chi
貢獻者: 資訊工程學系
關鍵詞: Steganography;DWT;Security
日期: 2006-06
上傳時間: 2012-05-03T09:15:04Z
出版者: 國立勤益技術學院
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: 第一屆智慧生活科技研討會, 國立勤益技術學院, 2006年06月09日
顯示於類別:[資訊工程學系] 會議論文

文件中的檔案:

檔案 大小格式瀏覽次數
2050401016004.pdf43KbAdobe PDF415檢視/開啟


在NCUEIR中所有的資料項目都受到原著作權保護.

 

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