A Robust Wavelet-Based Watermarking Using Quantization and Human Visual System

ASIA unversity > 資訊學院 > 行動商務與多媒體應用學系 > 會議論文 > Item 310904400/5007

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://asiair.asia.edu.tw/ir/handle/310904400/5007

题名:	A Robust Wavelet-Based Watermarking Using Quantization and Human Visual System
作者:	Gwoboa Horng(洪國寶);Tung-Her Chen(陳宗和);San-Hao Wang(王上豪)
贡献者:	Institute of Computer Science, National Chung-Hsing Unversity
关键词:	Digital watermarking;DWT;HVS model
日期:	2002-05-16
上传时间:	2009-12-08 07:38:13 (UTC+0)
出版者:	亞洲大學
摘要:	In this paper, a new robust blind watermarking scheme based on Discrete Wavelet Transform (DWT) is proposed. In order to develop a more robust and transparent watermarking scheme, we use two techniques to enhance strength and transparency. First, the watermark is embedded into the lowest frequency components,such that the maximum robustness is possible. Unfortunately, the quality of the watermarked image is low, that is, the distortion is serious. Second, however, the human visual system (HVS) model is adopted to improve the transparency of the watermarked image while the lowest frequency components can always survive under considerable distortions. Experimental results of different JPEG compression ratio are conducted to prove the robustness property of this watermarking scheme.
關聯:	第十二屆全國資訊安全會議 17-24
显示于类别:	[行動商務與多媒體應用學系] 會議論文

文件中的档案:

档案	描述	大小	格式	浏览次数
310904400-5007.doc		37Kb	Microsoft Word	272	检视/开启

在ASIAIR中所有的数据项都受到原著作权保护.