Program sfepfbe | Bi-Exponential Edge Preserving Smoothing 
[SYNOPSIS]
sfepfbe < in.rsf > out.rsf twod=n sigma=1.0 lamda=0.8 kernel=
[PARAMETERS]
string  | kernel | = |   | 	similarity: gaussian 
float   | lamda | =0.8 |   | 	lamda 
float   | sigma | =1.0 |   | 	normalizing parameter 
bool    | twod | =n |  [y/n] | 	y, 2D smoothing 
[DIRECTORY]
user/chen
