public void FindContourTest3()
{
Bitmap image = Accord.Imaging.Image.Clone(Properties.Resources.sample_black);
Bitmap grayscaleImage = Grayscale.CommonAlgorithms.BT709.Apply(image);
// Create a new border following algorithm
BorderFollowing borderFollowing = new BorderFollowing();
// Get all points in the contour of the image.
List<IntPoint> contour = borderFollowing.FindContour(grayscaleImage);
// Mark all points in the contour point list in blue
new PointsMarker(contour, Color.Blue).ApplyInPlace(image);
// Show the result
// ImageBox.Show(image);
Assert.AreEqual(380, contour.Count);
}