English  |  正體中文  |  简体中文  |  Items with full text/Total items : 6481/11653
Visitors : 23422415      Online Users : 286
RC Version 3.2 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search
Login ‧ Upload ‧ Help ‧ About ‧ Administer

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/1729

Title: A Steganography Method for Digital Images Using Coefficient Analysis
Authors: Po-Yueh Chen;Yue-Chi Tseng
Contributors: 資訊工程學系
Keywords: Steganography
DWT
Security
Date: 2006-05
Issue Date: 2010-11-12T07:14:08Z
Abstract: 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.
Relation: 資訊管理學術與實務研討會論文集, 2006:114-119
Appears in Collections:[資訊工程學系] 期刊論文

Files in This Item:

File SizeFormat
陳伯岳.pdf548KbAdobe PDF1029View/Open


All items in NCUEIR are protected by copyright, with all rights reserved.

 

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