Program sffocus | Focusing indicator. 
[SYNOPSIS]
sffocus < in.rsf > out.rsf dim= niter=100 verb=y rect#=(1,1,...)
[PARAMETERS]
int     | dim | = |   | 	dimensionality 
int     | niter | =100 |   | 	number of iterations 
int     | rect# | =(1,1,...) |   | 	smoothing radius on #-th axis 
bool    | verb | =y |  [y/n] | 	
[DIRECTORY]
user/fomels
