Program sfexpl1 | 1-D anisotropic diffusion by explicit cascade. 
[SYNOPSIS]
sfexpl1 < in.rsf > out.rsf cycle=1 rect1= pclip=50.
[PARAMETERS]
int     | cycle | =1 |   | 	number of cycles 
float   | pclip | =50. |   | 	percentage clip for the gradient 
int     | rect1 | = |   | 	smoothing radius 
[DIRECTORY]
system/generic
