@Deprecated
	public static CalibrationDetectorChessboard chessboard(@Nullable ConfigChessboard configDet ,
														   ConfigGridDimen configGrid ) {
		if( configDet == null )
			configDet = new ConfigChessboard();
		configDet.checkValidity();

		return new CalibrationDetectorChessboard(configDet,configGrid);
	}
@ Deprecated public static CalibrationDetectorChessboard chessboard ( @ Nullable ConfigChessboard configDet , ConfigGridDimen configGrid ) { if ( configDet == null ) configDet = new ConfigChessboard ( ) ; configDet . checkValidity ( ) ; return new CalibrationDetectorChessboard ( configDet , configGrid ) ; }
Detector for chessboard targets.  Squares can be partially outside, but inside corners must be entirely
inside the image.

@see DetectChessboardFiducial

@param configDet Configuration for chessboard detector
@return Square grid target detector.