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adaptive local filter

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neetika Karwasra
neetika Karwasra 2012 年 2 月 9 日
meanfilteredimage = filter2( ones([convwindowsize, convwindowsize]), noiseimage) / prod([convwindowsize, convwindowsize]); localVar = filter2( ones([convwindowsize,convwindowsize]), noiseimage.^2) / prod([convwindowsize, convwindowsize]) - meanfilteredimage.^2; noiseintensity = mean2(localVar); diff = noiseimage - meanfilteredimage; numerator = localVar - noiseintensity; numerator = max(0, numerator); denominator = max(localVar, noiseintensity); fractionalvalue = diff ./ denominator; Adaptivenoisefilter = meanfilteredimage + fractionalvalue .* numerator; plz explain the concept of adaptive local filter here

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