Double Digital Watermarking Method based on Transform Domain has realized the double aims of the copyright protection and the integrity authentication of image content.
基于变换域的双重数字水印方法，通过嵌入鲁棒水印和脆弱水印实现了图像内容版权保护和完整性认证的双重目的。
One way of doing this is to use image-authentication systems to reveal if someone has tampered with a picture.
一种做法是运用图像鉴定系统来显示是否有人擅自改动了图片。
Pointing out the limitation of the image authentication algorithm based on dividing blocks and give the reason why collage attack can be successful.
指出基于分块的图像认证方法存在的缺陷，以及共谋攻击得以成功的原因；
In the authentication message evaluator, the features of the received image are extracted again, and an effective comparison method is used to judge the image's authenticity.
在认证消息评估器中，提取出接收图像的对应特征，并使用一种基于相似度的特征比较方法来判断该图像的可信度。
Applying the satellite image with good phase and high resolution, adopting the the method of restorative investigation, the certain authentication could be provided for judicial authority.
利用时相性好、高分辨率的卫星影像资料或森林资源档案，采取恢复性调查的方法，可为司法机关提供证据确凿的鉴定意见。
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.
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）。
From the aspect of image understanding, we also present two classes of image content features for image authentication.
并从图像理解的角度出发，给出了两类图像内容特征提取方法。
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。
As a branch of multimedia information security technology, digital image authentication is paid close attention by one of a growing number of experts.
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 novel biometric authentication technology, human ear recognition needs to solve the problems of image processing such as edge detection and feature extraction.
人耳识别作为新的生物特征识别技术，首先要解决作为基础的边缘检测和特征提取等图像处理方面的问题。
It has brought us great convenience and a great number of information security problems as well. Such as information theft, copyright protection of multimedia data and image authentication.
它给人们带来种种便利的同时也带来了一系列的信息安全问题，比如信息窃取问题、多媒体信息的版权保护问题、信息篡改问题等。
The authentication watermark was generated according to the image feature which was the mean of an image extracted from FRIT.
提取图像在FRIT时产生的均值信息作为图像内容特征，并由它生成认证水印。
Digital signature and watermarking are two main methods of image authentication.
数字图像鉴别的基本方法主要有数字签名和数字水印两种。
Based on the characteristics of the binary image, we present a digital watermark authentication method with the supervisory relationship of Hamming Code.
结合二值水印图像的特点，运用海明码的监督关系式，首次提出了一种基于海明码的像素级数字水印检测方法。
This paper proposed a novel watermarking scheme for the authentication of business documents by embedding a piece of information in the binary document image.
针对商业文档的完整性保护问题，提出了一种数字水印方案。
This paper proposed a novel watermarking scheme for the authentication of business documents by embedding a piece of information in the binary document image.
针对商业文档的完整性保护问题，提出了一种数字水印方案。
应用推荐