数字水印技术简介

An Introduction of Digital Watermarking Technique

数字媒体极大地改善了我们的视听享受和物质文化生活 ,但其内在特性导致可以在几乎没有任何质量损失的条件下随心所欲地复制他们 ,如何有效地保护媒体版权所有者的合法权益成为学术界和产业界共同的课题。数字水印技术应运而生 ,成为“最后一道防线”。本文介绍了数字水印的应用领域、基本要求及系统框架 ,给出了一个典型的算法。最后进行了总结。

Digital media has strongly improved our enjoyment and lives, but its inherent property has resulted in illegal copy without any quality loss in the meantime How to effectively protect the intellectual property of multimedia has become a common issue in both the academic field and the business society The digital watermarking technique has been proposed as a promising means for it and been considered as 'the last line of defence' This paper introduces its application areas, basic requirements and system framework, also gives a representative algorithm Finally some concluding remarks are made