code: public void setLensDistortion(int width , int height ,
  								  @Nullable PixelTransform<Point2D_F32> distToUndist ,
  								  @Nullable PixelTransform<Point2D_F32> undistToDist )
  	{
  		detector.setLensDistortion(width, height, distToUndist, undistToDist);
  		if( refineGray != null )
  			refineGray.setLensDistortion(width, height, distToUndist, undistToDist);
  		edgeIntensity.setTransform(undistToDist);
  	}
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 distToUndist Transform from distorted to undistorted image.
  @param undistToDist Transform from undistorted to distorted image.