Adaptively wavelet-based image denoising algorithm with edge preserving-中国期刊网

摘要 Anewwavelet-basedimagedenoisingalgorithm,whichexploitstheedgeinformationhiddeninthecorruptedimage,ispresented.Firstly,acanny-likeedgedetectoridentifiestheedgesineachsubband.Secondly,multiplyingthewaveletcoefficientsinneighboringscalesisimplementedtosuppressthenoisewhilemagnifyingtheedgeinformation,andtheresultisutilizedtoexcludethefakeedges.Theisolatededgepixelisalsoidentifiedasnoise.Unlikethethresholdingmethod,afterthatweuselocalwindowfilterinthewaveletdomaintoremovenoiseinwhichthevarianceestimationiselaboratedtoutilizetheedgeinformation.Thismethodisadaptivetolocalimagedetails,andcanachievebetterperformancethanthemethodsofstateoftheart.

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Adaptively wavelet-based image denoising algorithm with edge preserving

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Adaptively wavelet-based image denoising algorithm with edge preserving

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