期刊名称：International Journal of Mechatronics, Electrical and Computer Technology
印刷版ISSN：2305-0543
出版年度：2014
卷号：4
期号：12
页码：1378-1393
出版社：Austrian E-Journals of Universal Scientific Organization
摘要：In this paper, unsharp mask is used to boost the quality of recovered watermark in correlation based watermarking. This filter is applied before take the correlation in the middle of recovery algorithm. This filter augments the distinction between the watermark and the host image. Thus the recovery algorithm could extract the watermark more precisely. Efficiency of proposed filter is shown by testing it on a typical the correlation based watermarking in spatial domain method. Several attacks are done to prove the performance of proposed method.
关键词：Unsharp Mask; Digital Image Watermarking; Correlation Based ; Watermarking; Spatial; Domain Watermarking
