code: @Deprecated
  	public static <T extends ImageGray<T>>
  	CalibrationFiducialDetector<T> calibChessboard( @Nullable ConfigChessboard config,
  													ConfigGridDimen dimen, Class<T> imageType) {
  		return new CalibrationFiducialDetector<>(config, dimen, imageType);
  	}
docs: Wrapper around chessboard calibration detector.   Refine with lines is set to true automatically.  This
  isn't being used for calibration and its better to use the whole line.
  
  @param config Description of the chessboard.
  @param imageType Type of image it's processing
  @return FiducialDetector