水印

It can provide effective protection for digital media forgery, authentication, security and intactness by embedding a special mark into multimedia data.

数字水印技术主要通过在媒体信息中嵌入标记信号，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。

A digital watermarking technique based on integer wavelet transform is proposed in this paper.

该文提出了一种基于整数小波变换的数字水印技术。

This paper presents a fragile watermarking scheme based on integral wavelet transform.

本文提出了一种基于整数小波变换的适合医学图像的易碎水印算法。

By analyzing the relationship between DCT coefficients of a specific intermediate frequency, the blind watermark extraction was achieved.

通过分析DCT中频特定系数关系，实现水印的盲提取。

Key words: computer application; software watermarking; SHKQ algorithm; Microsoft intermediate language; collusive attack

关键 词：计算机应用；软件水印；SHKQ算法；微软中间码语言；共谋攻击

To deal with the shift problems and interpolation error problems caused by common image processing and geometric attacks, a local Tchebichef moments based robust image watermarking is developed.

5为了更好地解决由常规图像处理和几何攻击产生的移位以及插值误差等问题，提出了一种基于局部Tchebichef矩的鲁棒水印算法。

Experimental results are compared with results of the method based on the geometric invariance presented by Alghoniemy.

文中给出了实验结果，并与Alghoniemy提出的基于几何矩不变量的数字水印算法进行了比较。

Aiming at speed of the program and capacity of hidden information in traditional algorithms as equation reordering, this paper proposed a new algorithm based on inverse number of equation's operand coefficient.

针对方程式重排序等算法存在的程序运行速度、信息隐藏量等问题，提出基于方程式操作数系数排列逆序数的软件水印算法。

To deal with the problems in the program speed and capacity of hidden information in traditional algorithms as expression reordering, a new software watermarking algorithm based on inverse number of expression's operand coefficient was proposed.

为解决表达式重排序等算法存在的程序运行速度、隐藏信息量等问题，研究与实现了基于表达式逆序数的软件水印算法。

Through the one-to-one relationship between the inverse number and the binary number, the dictionary mapping was got. According to the dictionary mapping, watermark encoding, watermark embedding and watermark extracting were implemented.

算法通过排列的逆序数和二进制数的一一对应关系得到映射字典，再根据映射字典完成水印数据的编码、嵌入和提取。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。