彩色图像数字水印技术研究

A technology research of digital watermarking of colored image

数字水印作为传统加密方法的有效补充手段,是一种可以在开放的网络环境下保护版权和认证来源及完整性的新技术,近年来已引起了人们的高度重视,并已成为多媒体信号处理领域的一个研究热点。本文介绍了数字水印的一些概念,数字水印的特点,数字水印方案的一些典型算法,以及彩色图像实现数字水印技术的方法。

As an effective complement for traditional methods of encryption,digital watermarking is a new technique,which can ensure safe protection of copyright,precise authentication of the source and completion of the data in an open internet environment.Due to its advantages,the digital watermarking has gained much attention and has become a hot issue in the field of multimedia data processing.This article presents a series of systematic introductions of related concepts of watermarking,the current domestic and overseas researches on watermarking,the typical algorithms of watermark scheme,and the method of embedding and extraction of watermarking for a colored image.