Synopsis
		sfkuwahara < in.rsf > out.rsf nfw1= nfw2=1 boundary=n verb=n weight=n sigma=3.

1D filter (nfw2=1); 2D filter (otherwise)

Parameters
		bool boundary=n [y/n] if y, boundary is data, whereas zero   int nfw1= filter-window length in n1 direction (positive and odd integer)   int nfw2=1 filter-window length in n2 direction (default=1, 1D case)   float sigma=3. Gaussian weight radius   bool verb=n [y/n] verbosity flag   bool weight=n [y/n] Gaussian weight flag