摘要在通信技术日益发达的今天，特别是计算机网络的广泛应用，使得我们可以方便并且迅速的资源共享和信息传输。计算机网络和通信技术的发展不仅给我们带来了各种便利，同时也给我们带来了一系列的信息安全问题。信息被非法窃取、篡改、泄漏等，还有多媒体产品的版权问题等，这些都是人们担心的问题。而信息隐藏技术是解决这一系列问题的有效方法，它是信息安全研究领域的一个新方向。信息隐藏技术就是要把需要隐藏的信息嵌入到图像、视频、文本等数字多媒体中，达到隐秘通信、版权保护、真实性鉴别等目的。因为信息隐藏技术隐藏了通信双方的存在，所以安全性很高。目前，信息隐藏技术主要的研究是对灰度图像和彩色图像的，对于二值图像的研究比较少。23466
论文在开始介绍了信息隐藏的历史以及它的发展状况、系统模型、技术要求和应用方向。讲述了二值图像信息隐藏的研究意义，并且分析了它的一些技术难点，总结了之前专家学者研究探索的一些典型的二值图像信息隐藏算法，分析了它们的优缺点。在这些算法的基础上，探讨了基于空域LSB的信息隐藏技术并且介绍了它的技术原理和一些应用，提出了一个改进的LSB技术。空域方法就是对图像像素进行一些有意义的修改，从而来嵌入信息，但在实际应用中需要考虑鲁棒性、安全性、嵌入容量等因素，这些因素决定了信息隐藏的效果。
毕业论文关键词:二值图像、信息隐藏、最小有效位（LSB）
Abstract
Today,the communication technology increasingly developed,
especially the wide application of computer network,so we can convenient and rapid resource sharing and information transmission.the development of computer network and communication technology not only brings us a variety convenience,but also bring us a series of infoermation security problems. information is illegal theft, leakage and so on, multimedia products copyright issues,these are the people worry about.information hiding is the one of the effective methods to solve the problems,it is a new direction in the field of information security research.information hiding is need to hidden information embeded in the image,video,text,such as digital multimedia,achieve secret communication,copyright protection
authenticity identification purposes. because of the existence of information hiding technology hides the communication on both sides,so security is very great.at present,information hiding technology is the main research on the gray image and color image,less for binary image research.
The history of information hiding been introduced at the beginning of the papers,and its development status,system model,technical requirements and application direction.tells the research significance of binary information hiding,and analyses its some technical difficulties
and summarizes the previous studies experts and scholars to explore some of the typical binary image information hiding algorithms,analyzed their advantages and disadvantages.on the basis of these algorithms,the paper discusses the information hiding technology based on spatial LSB and
introduces its technical principle and some applications,an improved LSB
technology.pixels in an image airspace is some significant changes,thus to embed information.but,in practice need to consider the robustness,
security,factors such as the embedding capacity,these factors determine the sffect of information hiding.
Key words：binary image, information hiding, the Least Significant Bit(LSB)
目录
摘要1
Abstract .2
目录3
1 绪论.4
1.1 研究背景.5
1.2 信息隐藏技术.6
1.2.1 信息隐藏技术的概念.6 基于二值图像的LSB信息隐藏技术研究:http://www.751com.cn/tongxin/lunwen_16537.html