/**
	 * 人脸识别测试
	 * @param args
	 */
	public static void main(String[] args) {
		CascadeClassifier classifier = new CascadeClassifier("haarcascade_frontalface_alt.xml");

		Mat image = Imgcodecs.imread("images/chuanpu.png");

		MatOfRect faces = new MatOfRect();
		classifier.detectMultiScale(image, faces);

		Rect[] rects = faces.toArray();

		System.out.println("识别人脸数：" + rects.length);
		for (int i = 0; i < rects.length; i++) {
			Imgproc.rectangle(image, new Point(rects[i].x, rects[i].y),
					new Point(rects[i].x + rects[i].width, rects[i].y + rects[i].height), new Scalar(0, 0, 255), 1);
			Imgproc.putText(image, "Human", new Point(rects[i].x, rects[i].y), Imgproc.FONT_HERSHEY_PLAIN, 1.0,
					new Scalar(0, 255, 0), 1, Imgproc.LINE_AA, false);
		}
		imwrite("output/face2.png", image);		
	}