Program sffdip | 3D fast dip estimation by plane wave destruction 
[SYNOPSIS]
sffdip < in.rsf > out.rsf mask=mask.rsf n4=2 liter=20 rect1=1 rect2=1 rect3=1 verb=n
[PARAMETERS]
int     | liter | =20 |   | 	number of linear iterations 
string  | mask | = |   | 	auxiliary input file name
int     | n4 | =2 |   | 	what to compute in 3-D. 0: in-line, 1: cross-line, 2: both 
int     | rect1 | =1 |   | 	dip smoothness on 1st axis 
int     | rect2 | =1 |   | 	dip smoothness on 2nd axis 
int     | rect3 | =1 |   | 	dip smoothness on 3rd axuis 
bool    | verb | =n |  [y/n] | 	verbosity flag 
[DIRECTORY]
user/pwd
