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页数:5页
时间:2019-03-01
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1、Availableonlineatwww.sciencedirect.comAvailableonlineatwww.sciencedirect.comProcediaEngineeringProcediaEngineering00(2011)000–000ProcediaEngineering29(2012)3674–3678www.elsevier.com/locate/procedia2012InternationalWorkshoponInformationandElectronicsEngineering(IWIEE)ImageInpaintingBasedonWaveletD
2、ecomposition*HongyingZhang,ShimeiDAISchoolofInformationEngineering,SouthwestUniversityofScienceandTechnology,Mianyang621010,ChinaAbstractImageinpaintingisanimportantproblemimageprocessing.Itisadifficultproblemtosimultaneouslyfill-inthetextureandstructureinregionsofmissingimageinformation.Inordert
3、oinpaintthedamagedimagewithbothmissingthestructureandtextureinformation,animageinpaintingalgorithmbasedonwaveletdecompositionispresented.Firstthedamagedimageisdecomposedintostructuresub-imageandtexturesub-imageusingthewavelettransformation.Then,thesub-imagewiththeregionofmissinginformationinthest
4、ructureisreconstructedbyCurvature-DrivenDiffusions(CDD)algorithm,whilethesameregioninthetexturesub-imageisfilled-inwiththeimprovedtexturesynthesisbasedonexemplar;Finally,therestoredimageisgivenbyrecombiningthestructureandtexturerestoredresults.Alargenumberofexperimentsshowthattheproposedalgorithm
5、canquicklyandefficientlyrestorethestructureandtextureinformationatthesametime,andthevisualeffectsandthePeakSignaltoNoiseRatio(PSNR)isbetterthanthesimilaralgorithms.©2011PublishedbyElsevierLtd.Selectionand/orpeer-reviewunderresponsibilityofHarbinUniversityofScienceandTechnologyKeywords:Imageinpain
6、ting;imagedecomposition;texturesynthesis1.IntroductionImageinpaintingisanimportantresearchtopicintheareaofimagerestoration[1,2].Thispaperfocusesonimageinpaintingbasedonimagedecomposition.Recently,manyalgorithmsforthesimultaneousfilling-inoftextureandstructureinregionsofmissingimageinformationwere
7、presented[3-5].AlthoughtheDCT-basedimagedecompositioninpaintingmethodwhichdecomposedtheinputimageintothefrequencydomainprocesseasierthanvariationdecomposition,itrequiresuserinterventiontoadjustparametersrepeatedlytoget
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