Synopsis
		sfigrad < in.rsf > out.rsf square=n adj=n

Parameters
		bool adj=n [y/n] adjoint flag   bool square=n [y/n] if y, use gradient squared

Used In
		CWP          jse2006RWEImagingOverturningReflections/sigsbee   GEE          ajt/igrad1 hlx/helderiv hlx/helgal hlx/helocut iin/galilee noiz/mad noiz/rbst   GEO391          hw4/rain   JSG          lpf/regr timelapse/timelapse   RSF          rsf/sfderiv   SEP          angle/agmig burg/gtens