Method mark

src/com/cloudream/ishow/algorithm/FaceDetector.java:253–347

@brief mark image with feature points, along with it's order. @param image the image to be marked. @param points feature points found by #detectFaceSingle. @return marked image, mostly used for debugging.

(Bitmap image, PointF points[])

	 * @return marked image, mostly used for debugging.
	 */
	public static Bitmap mark(Bitmap image, PointF points[])
	{
		if(points == null)
			return image;
		
		Bitmap mutableBitmap = image.copy(Bitmap.Config.ARGB_8888, true);
		Canvas canvas = new Canvas(mutableBitmap);
		
		Paint paint = new Paint();
		paint.setAntiAlias(true);
		paint.setDither(true);
		paint.setStyle(Paint.Style.STROKE);
		paint.setStrokeJoin(Paint.Join.ROUND);
		paint.setStrokeCap(Paint.Cap.ROUND);
//		paint.setStrokeWidth(1);

//		canvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR);  // clear
//		paint.setColor(Color.TRANSPARENT);
//		canvas.drawRect(0, 0, bmp_raw.getWidth(), bmp_raw.getHeight(), paint);
		paint.setColor(Color.GREEN);
		final float radius = 1;
		for(int i = 0; i < points.length; ++i)
		{
			final PointF point = points[i];
//			canvas.drawCircle(point.x, point.y, radius, paint);
			canvas.drawPoint(point.x, point.y, paint);
			canvas.drawText(String.valueOf(i), point.x + radius, point.y, paint);
		}
		
		paint.setStyle(Style.STROKE);
		Path path_face = getClosedPath(points, 0, 19);
		Path path_eye_brow_r = getEyeBrowPath(points, 22, 21, 20 ,25, 24 ,23);
		Path path_eye_brow_l = getEyeBrowPath(points, 29, 28, 27, 26, 31, 30);
		Path path_eye_r = getClosedPath(points, 34, 41);
		Path path_eye_l = getClosedPath(points, 44, 51);
		Path path_upper_lip = getUpperLip(points);
		Path path_lower_lip = getLowerLip(points);
		
		paint.setColor(Color.BLUE);
		canvas.drawPath(path_face, paint);
		canvas.drawPath(path_eye_brow_r, paint);
		canvas.drawPath(path_eye_brow_l, paint);
		canvas.drawPath(path_eye_r, paint);
		canvas.drawPath(path_eye_l, paint);
		canvas.drawPath(path_upper_lip, paint);
		canvas.drawPath(path_lower_lip, paint);

		Path path_lip = new Path();
		path_lip.addPath(path_upper_lip);
		path_lip.addPath(path_lower_lip);
//		Region region = new Region();
//		region.setPath(path_lip, null);
		
		// iris
		float iris_r_radius = 0, iris_l_radius = 0;
		final int iris_indices_r[] = {35, 37, 39, 41};
		final int iris_indices_l[] = {45, 47, 49, 51};
		if(false)