Synopsis
		sfspitzns < in.rsf > out.rsf w1=n1 w2=n2 k1=1 k2=1 order=3 ntraces=1 verb=n norm=y

based on Seismic trace interpolation in the F-X domain
S.Spitz Geophysics 56, 785(1991).

Uses 2D Patching.

Parameters
		int k1=1 number of patches along the first dimension   int k2=1 number of patches along the second dimension   bool norm=y [y/n] output normalization flag   int ntraces=1 number of traces to be interpolated   int order=3 linear PEF order   bool verb=n [y/n] verbosity flag   int w1=n1 lenght of patch along the first dimension   int w2=n2 lenght of patch along the second dimension