code: public void setLensDistortion(int width , int height ,
  								  @Nullable LensDistortionNarrowFOV model )
  	{
  		alignmentLocator.setLensDistortion(width, height, model);
  		gridReader.setLensDistortion(width, height, model);
  	}
docs: <p>Specifies transforms which can be used to change coordinates from distorted to undistorted and the opposite
  coordinates.  The undistorted image is never explicitly created.</p>
  
  @param width Input image width.  Used in sanity check only.
  @param height Input image height.  Used in sanity check only.
  @param model distortion model. Null to remove a distortion model.