Synopsis
		sfnpef < in.rsf > flt.rsf maskin=mask.rsf pch=patch.rsf filt=reg.rsf a= center= gap= niter=100 epsilon=0.01 lag= maskout= filt_pch= filt_lag=

Parameters
		ints a= [dim]   ints center= [dim]   float epsilon=0.01 regularization parameter   file filt= auxiliary input file name   string filt_lag= input file for double-helix filter lags   string filt_pch=   ints gap= [dim]   string lag= output file for filter lags   string maskin= optional input mask file (auxiliary input file name)   string maskout= optional output mask file   int niter=100 number of iterations   string pch= auxiliary input file name

Used In
		GEE          pch/tvdecon