期刊名称：International Journal on Electrical Engineering and Informatics
印刷版ISSN：2085-6830
出版年度：2009
卷号：1
期号：2
出版社：School of Electrical Engineering and Informatics
摘要：This paper presents an asymmetric watermarking technique derived from Barni Algorithm, a symmetric watermarking technique, using statistical approach. This asymmetric version uses secret watermark as private key and public watermark as public key. The public watermark has a normal distribution and the private watermark is a linear combination of the public watermark and encrypted version of a secret sequence. The detection process is implemented by correlation test between the public watermark and the received image. Experiments show that the asymmetric technique was proved as robust as its symmtric version againts some typical image processings.
