public void RansacLineConstructorTest2()
{
Accord.Math.Random.Generator.Seed = 0;
Bitmap image = Accord.Imaging.Image.Clone(Resources.noise_line);
//Accord.Controls.ImageBox.Show(image);
var detector = new SusanCornersDetector();
List <IntPoint> cloud = detector.ProcessImage(image);
Assert.AreEqual(211, cloud.Count);
Bitmap marks = new PointsMarker(cloud, Color.Pink).Apply(image);
//Accord.Controls.ImageBox.Show(marks);
RansacLine ransac = new RansacLine(5, 1e-10);
Line line = ransac.Estimate(cloud);
Assert.AreEqual(0.501134932f, line.Intercept, 1e-5);
Assert.AreEqual(-0.865369201f, line.Slope, 1e-5);
//var result = new LineMarker(line).Apply(image);
//Accord.Controls.ImageBox.Show(result);
}
public void RansacLineConstructorTest()
{
Point[] points = new Point[500];
{
for (int i = 0; i < points.Length; i++)
{
double x = i;
double y = i; //+ 5 * Accord.Math.Tools.Random.NextDouble();
points[i] = new Point((float)x, (float)y);
}
RansacLine target = new RansacLine(0.80, 0.9);
Line actual = target.Estimate(points);
Line expected = Line.FromPoints(points[0], points[499]);
Assert.AreEqual(expected.Slope, actual.Slope, 1e-3);
Assert.AreEqual(expected.Intercept, actual.Intercept, 1e-2);
}
{
for (int i = 0; i < points.Length; i++)
{
double x = i;
double y = i + 5 * Accord.Math.Tools.Random.NextDouble();
points[i] = new Point((float)x, (float)y);
}
RansacLine target = new RansacLine(0.80, 0.9);
Line actual = target.Estimate(points);
Assert.AreEqual(1.0, actual.Slope, 1e-3);
Assert.AreEqual(0.0, actual.Intercept, 1e-2);
}
{
for (int i = 0; i < points.Length; i++)
{
double x = i + 50;
double y = i + 50 + 5 * Accord.Math.Tools.Random.NextDouble();
points[i] = new Point((float)x, (float)y);
}
RansacLine target = new RansacLine(0.80, 0.9);
Line actual = target.Estimate(points);
Assert.AreEqual(1.0, actual.Slope, 1e-3);
Assert.AreEqual(0.0, actual.Intercept, 1e-2);
}
}
public void RansacLineConstructorTest2()
{
Bitmap image = Properties.Resources.noise_line;
ImageBox.Show(image);
var detector = new SusanCornersDetector();
List <IntPoint> cloud = detector.ProcessImage(image);
Bitmap marks = new PointsMarker(cloud, Color.Pink).Apply(image);
ImageBox.Show(marks);
RansacLine ransac = new RansacLine(5, 1e-10);
Line line = ransac.Estimate(cloud);
Bitmap result = new LineMarker(line).Apply(image);
ImageBox.Show(result);
Assert.Fail();
}