Program sfsphase | Smooth estimate of instantaneous phase. 
[SYNOPSIS]
sfsphase < in.rsf > out.rsf niter=100 order=10 ref=1. rect#=(1,1,...)
[PARAMETERS]
int     | niter | =100 |   | 	number of iterations 
int     | order | =10 |   | 	Hilbert transformer order 
int     | rect# | =(1,1,...) |   | 	smoothing radius on #-th axis 
float   | ref | =1. |   | 	Hilbert transformer reference (0.5 < ref <= 1) 
[DIRECTORY]
user/yliu
