作为多媒体认证和篡改检测的一种新技术，易碎水印正得到越来越多的关注。
As an effective method for multimedia authentication and tamper detection, fragile watermarking is drawing extensive attention recently.
跟着盘算机网络、多媒体及信息科学的不断发铺，数字媒体的产权维护和完全性认证已成为一个迫切须要解决的题目。
Along with the development of the computer network, multimedia and information science, problems brought by copyright protection of digital media have become more and more serious.
这样，在电子音像出版等范畴，对数字媒体的版权维护、所有权认证也越来越受到重视。
Be like a publication in the electronics sound so etc. realm, the copyright protection, the ownership attestation of the digital medium also is subjected to a value more and more.
数字水印技术是对多媒体版权进行保护和完整认证的有效工具之一，近年来成为研究热点。
As an effective implements in the copyright protection and integrity authentication for multimedia, digital watermarking techniques has become an active and flouring research topic.
信息隐藏技术将信息嵌入到数字媒体中以达到版权保护、识别、认证等目的。
Information hiding techniques embed information into digital media for purpose of copyright protect, identification, authentication.
本文根据多媒体信息的特点和多媒体认证的具体要求，提出了一种新的数字图象可恢复性主动签名方法（RADS）。
This paper presents a novel recoverable active signature technique of digital images(RADS) , according to the characteristics of image contents and the requirements of multimedia authentication.
目前数字水印已成为多媒体版权认证和完整性保护的有效手段。
At present, watermarking technique has been a kind of effective means to multimedia copyright authentication and its integrity protection.
随着多媒体技术和网络技术的飞速发展和广泛应用，版权保护和安全认证成了迫切需要的问题。
With the development of computer network and multimedia technology, copyright protection and authentication become more and more urgent.
它可在多媒体数据中嵌入版权信息或认证信息来识别多媒体数据的真正所有者和验证多媒体数据的真伪。
It attempts to embed copyright and authentication codes within media content to identify the true owner and authenticate the digital information.
数字水印技术因其在多媒体版权保护、媒体认证技术方面所具有的优势，逐渐成为人们研究的热点之一。
With the superiority in the field of the copyright protection in multimedia and the authentication of media, the technology of digital watermarking is becoming one of the hot-spots.
定期在指定的国家级新闻媒体和官方网站上公告新认证的和被取消的绿色食品产品。
The bulletin on newly authenticated and abolished green food products will be regularly published on designated national news media and official websites.
数字图像认证技术作为多媒体信息安全技术的分支之一，受到了越来越多专家学者的重视。
As a branch of multimedia information security technology, digital image authentication is paid close attention by one of a growing number of experts.
毕业的学生可以在获得资格认证后在初级中学或中等中学任教，编写教材和制作教学媒体，或成为教育决策部门的一员。
Graduates may obtain licensing to teach at middle schools or secondary schools, prepare textbooks and other instructional media, or serve on educational policy-making bodies.
数字水印技术可以用于版权维护、多媒体认证等方面。
Digital watermarking is used for copyright protection, authentication of multimedia and so on.
它主要通过在媒体信息中嵌入标记信号(数字水印)，为媒体信息在防伪、防篡改、认证、保障数据安全和完整性等方面提供有效的技术手段。
It can provide effective protection for digital media forgery, falsification, authentication, security and intactness by embedding a special mark (digital watermark) into the multimedia data.
数字图像的真实性、完整性认证技术是多媒体安全保护的重要研究课题。
The authentication techniques of image authenticity and integrality are the important research subjects of the multi-media security field.
数字图像的真实性、完整性认证技术是多媒体安全保护的重要研究课题。
The authentication techniques of image authenticity and integrality are the important research subjects of the multi-media security field.
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