Program sffowler | 2-D velocity-domain imaging (Fowler DMO + Stolt migration).
[SYNOPSIS]
sffowler < inp.rsf > out.rsf eps=0.01
[COMMENTS]

Input: 2-D cosft of constant-velocity stacks (v,w,k).

[PARAMETERS]
float   | eps | =0.01 |   | 	stretch regularization 
[DIRECTORY]
system/seismic
