Program sfdimag | Diffraction imaging in the plane-wave domain. 
[SYNOPSIS]
sfdimag < cmp.rsf > scan.rsf semblance=n nb=2 v0= dv= nv= extend=4 mute=12 str=0. x0=
[PARAMETERS]
float   | dv | = |   | 	
int     | extend | =4 |   | 	trace extension 
int     | mute | =12 |   | 	mute zone 
int     | nb | =2 |   | 	semblance averaging 
int     | nv | = |   | 	
bool    | semblance | =n |  [y/n] | 	if y, compute semblance; if n, stack 
float   | str | =0. |   | 	maximum stretch allowed 
float   | v0 | = |   | 	
float   | x0 | = |   | 	
[DIRECTORY]
system/seismic
