标签: dimension

DataQuality-TheAccuracyDimension

Dimension……

mathcad_medianfilteringintwodimensionGRAPHINGANDVISUALIZATIONMedianFilteringinTwoDimensionsThisQuickSheetillustratessmoothingofa2Dimageusing3x3or5x5medianfiltering.S:=READBMP("cross")g(x):=if(rnd(1)M:=READBMP("mona")K:=submatrixM(,60,160,50,150)→K:=g(K)SecondexampleInputparameterkis3or5or7...medflt(M,k):=I0←J0←k12k12I1←rows(M)J1←cols(M)fori∈I0..I1forj∈J0..J1k+12k+12forr∈0..k1fors∈0..k1Ar,s←Mi+rk12,j+sk12Ni,j←median(A)NT:=medflt(S,5)NoisyimageSmoothedimageSTL:=medflt(K,3)KL……