public void setInterpolation( double inputMin , double inputMax, double derivMin , double derivMax ,
								  InterpolationType type) {
		interpI = FactoryInterpolation.createPixelS(inputMin,inputMax,type, BorderType.EXTENDED, imageType.getImageClass());
		interpDX = FactoryInterpolation.createPixelS(derivMin,derivMax,type, BorderType.EXTENDED, derivType.getImageClass());
		interpDY = FactoryInterpolation.createPixelS(derivMin,derivMax,type, BorderType.EXTENDED, derivType.getImageClass());
	}
public void setInterpolation ( double inputMin , double inputMax , double derivMin , double derivMax , InterpolationType type ) { interpI = FactoryInterpolation . createPixelS ( inputMin , inputMax , type , BorderType . EXTENDED , imageType . getImageClass ( ) ) ; interpDX = FactoryInterpolation . createPixelS ( derivMin , derivMax , type , BorderType . EXTENDED , derivType . getImageClass ( ) ) ; interpDY = FactoryInterpolation . createPixelS ( derivMin , derivMax , type , BorderType . EXTENDED , derivType . getImageClass ( ) ) ; }
Used to change interpolation method.  Probably don't want to do this.
@param inputMin min value for input pixels. 0 is typical
@param inputMax max value for input pixels. 255 is typical
@param derivMin min value for the derivative of input pixels
@param derivMax max value for the derivative of input pixels
@param type Type of interpolation method to use