Synopsis
		sfbilat2 < inp.rsf > out.rsf r1=1 r2=1 a1=0.0f a2=a1 a3=0.0f repeat=1

Parameters
		float a1=0.0f vertical attenuation factor   float a2=a1 horizontal attenuation factor   float a3=0.0f data attenuation factor   int r1=1 vertical smoothing radius   int r2=1 horizontal smoothing radius   int repeat=1 repeat the operation

Used In
		RSF          tutorials/smoothing