资源描述：
《基于图论的文本数字水印技术》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、计算机研究与发展ISSN100021239PCN1121777PTPJournalofComputerResearchandDevelopment44(10):1757～1764,2007基于图论的文本数字水印技术1,211刘东孙明周明天1(电子科技大学计算机科学与工程学院成都610051)2(反应堆设计技术国家级重点实验室成都610041)(Liudong73@yahoo1com)ATextDigitalWatermarkingTechnologyBasedonGraphTheory1,211LiuDong,SunMing
2、,andZhouMingtian1(SchoolofComputerScienceandEngineering,UniversityofElectronicScienceandTechnologyofChina,Chengdu610051)2(NationalKeyLaboratoryofReactorSystemDesignTechnology,Chengdu610041)AbstractBecauseoftext’sproperties,it’ssodifficulttofindperfectalgorithmsofem
3、beddingwatermarkintotextdocuments,whencomparedwithothermedia1Nowadays,textwatermarkingtechnologiesisfarbehindothermultimediawatermarkingtechnologiessuchasimages,audios,etc1Anoveltextdigitalwatermarkingtechnologybasedongraphtheoryispresentedinthispaper1Throughchangi
4、ngitstopologystructuresofacharacterorstring,differentfiguresareschemedout,whichrepresentthesamesemanteme1Thenthosefiguresaremappedongraphsofgraphtheory,andthegraphsortheirpropertiesshouldbecorrectlyencodedinordertodenotedifferentwatermarkinginformation1Themathemati
5、cmodelsofembeddinganddetectingwatermarkingarealsodescribed,andtheexperimentalmethodsofrobustnessandvisualinfluence,aswellastherelativeresultsaregiven1Finally,generalrulesofremovingattackontextwatermarkingsystemisproposed,andtheattack2resistingcapabilityandmethodsof
6、thistextdigitalwatermarkingisanalyzedindetail1Accordingtotheexperimentationandanalysis,thetextwatermarkingtechnologyhasthefollowingadvantages:greatcapacityofwatermarking,strongrobustness,littlevisualinfluenceandquitegoodattack2resistingcapability1Withthistechnology
7、,itismoreconvenienttoembedwatermarkintocharactersforideographlanguagessuchasChineseandKorean,whileitissuitableforembeddingwatermarkintostringsforalphabeticlanguagessuchasEnglishandFrench1Keywordstextdigitalwatermarking;topologystructure;figuresofacharacterorstring;
8、graphtheory;encoding;rulesofremovingattack摘要由于文本自身的一些特点,相对于其他的媒体,在文本中嵌入数字水印更加困难1这造成了当前文本数字水印技术的发展远远落后于其他数字水印技术1提出了一种新的基于图论的文本数字水印技术,通过适当改变字符或字符串的
