小波分析及其在船舶圖像尺寸測量中的應用.pdf

1、類號UDCTN9l學號：密級Q三蘭旦墨塑魚Q墜苧一玉河i每大蓐碩上學位論文小波分析及其在船舶圖像尺寸測量中的應用王瑤指導教師姓名奎慶武副塾攫塑盤盔堂讓簋扭盈籃。包工程堂瞳塹蒸笪直立立煎逮路!羔申請學位級別工堂亟專業(yè)名稱通』主量籃J皇丕紅論文提交口期2Q逝生至旦論義答辯日期2QQ魚生3臼呈!目學位授予單位和口期一河連太堂2QQ生壘旦日答辯委員會主席：塞昌芏評閱人：奎富坐、壁棗基2006年3月中國南京AbstractWaveletanaly

2、sisisanovelresearchfieldThewavelettransformwaspublisheduptonowonlyformorethan10years，itwasreceivedfavorsininformationprocessingdomain，andthusitobtainedthewidespreadapplicationanddevelopment，andhastheenormoussuccessTostud

3、ythenewtheorymethodsandapplicationsofwaveletsisofgreattheoreticalsignificanceandpracticalvalueThispaperintroducedthewavelethistoryandthebasicconceptofthewavelettransformaswellassomeapplicationsintheimageprocessingThispap

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5、dapproachforimagecontrastenhancementisusedOnthebasisoftakingfulladvantageofmulti—scalewaveletanalysis，differentlyenhancesthecoefficientsateachscaleachievestheimagecontrastenhancement、vitIlthenonlinearprocessedcoefficient

6、atthesamescale，enhancescontrastofthelowfrequencysubbandimagewiththegoodwholeenhancingeffectTheresultofthealgorithmdemonstratesthatthealgorithmavoidsover—enhancementofnoisewhileenhancingcontrastoftheimagewithgoodvisualeff

7、ectAwavelettransformisperformedontheimagefunctiontodetectanimageedgeusingBsplinewaveletsThecontradictionbetweenthedetectionprecisionoftheimageedgesandtherestrainingabilityofanimagenoiseiswellresolvedbythismethodTheresult

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