Program sffxspfdenoise2 | Random noise attenuation using 2D f-x streaming prediction filter. 
[SYNOPSIS]
sffxspfdenoise2 < inp.rsf > out.rsf verb=n lambda1= lambda3= na1=
[PARAMETERS]
float   | lambda1 | = |   | 	Regularization in x direction 
float   | lambda3 | = |   | 	Regularization in f direction 
int     | na1 | = |   | 	filter size in x direction 
bool    | verb | =n |  [y/n] | 	
[DIRECTORY]
user/yliu
