Synopsis
		sfdix < vrms.rsf > vint.rsf weight=weight.rsf vrmsout=vout.rsf niter=100 rect#=(1,1,...)

Parameters
		int niter=100 maximum number of iterations   string rect#=(1,1,...) smoothing radius on #-th axis   string vrmsout= optionally, output predicted vrms (auxiliary output file name)   string weight= auxiliary input file name

Used In
		BEI          vela/vscan