介绍了数字水印技术背景、基本原理、特点及现状，并给出典型算法的分类和目前存在的问题。
This paper describes the background basic principle, features and current situation of digital watermarking, and provides the classification of typical algorithm and analyzes the existing problem.
本文介绍了数字水印的定义，分析了几种典型算法，并提出了评价数字水印算法的评估标准和攻击方法。
In this paper, we introduce the concept of digital watermarking, analyze some typical algorithm, and propose evaluation criterions and attacking methods which evaluate digital watermarking algorithm.
本文在介绍水印技术的基本要求之后，重点讨论几种典型的数字水印嵌入和检测算法。
After introducing basic demands, this article pay most attention to argue about several representative watermark embedding and detecting techniques.
目前已出现多种数字水印算法，典型的水印算法有空域算法、变换域算法、小波域算法、超小波域算法等。
There are so many digital watermark algorithms at present. The typical examples are the airspace algorithm, transform domain algorithm, wavelet domain algorithm and beyond wavelets algorithm.
分析了几种典型的对称数字水印算法，并且对对称水印加密算法和非对称水印加密算法的特点进行比较分析。
This paper is devoted to some typical asymmetric watermarks and some basic characteristics of asymmetric watermark and symmetric watermark.
介绍了数字水印技术的研究背景和现状，分析了图像数字水印技术的基本原理和典型算法等。
The research background and the present study of digital watermarking are given. The basic principle and the typical algorithm of digital image watermarking are mainly analyzed.
介绍了数字水印技术的研究背景和现状，分析了图像数字水印技术的基本原理和典型算法等。
The research background and the present study of digital watermarking are given. The basic principle and the typical algorithm of digital image watermarking are mainly analyzed.
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