Synopsis
		sfsmooth < in.rsf > out.rsf repeat=1 rect#=(1,1,...) diff#=(n,n,...)

Parameters
		bool diff#=(n,n,...) [y/n] differentiation on #-th axis   int rect#=(1,1,...) smoothing radius on #-th axis   int repeat=1 repeat filtering several times

Used In
		BEI          dpmv/yalei dpmv/matt dwnc/vofz dwnc/sigmoid fdm/kjartjac fld/synmarine ft1/ft2d ft1/plane4 ft1/autocor krch/sep73 sg/denmark   CWP          geo2006TimeShiftImagingCondition/flat geo2006TimeShiftImagingCondition/zicig geo2007StereographicImagingCondition/gaus1 geo2007StereographicImagingCondition/sigsbee2 geo2007StereographicImagingCondition/flat4 gpr2007RWEHighOrderKernels/diving gpr2007RWEHighOrderKernels/marm jse2006RWEImagingOverturningReflections/sigsbee seg2006ConvertedWavesTSIC/cwtsic3   GEE          hlx/mam lmn/sep73 lsq/antoine pch/signoi   GEO384W          hw1/simple hw4/times hw5/hyper   GEO391          hw3/pocs hw3/rotate hw5/channel   JSG          pmig/mig pwc/cmp shape/lomo shape/smoo   SEP          antial/sig findif/vc3 huygens/marmousi mett/mtime plane/qint pwd/lomo pwd/signoi pwd/dune spitz/sign stack/miginv stoltst/elfst stoltst/imps vc2/sigvc velspec/sigvc