docs: 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());
  	}