public void ProcessImageTest()
{
var bitmaps = SpeededUpRobustFeaturesDetectorTest.GetImages();
foreach (Bitmap img in bitmaps)
{
bool upright = true;
bool extended = false;
List <SpeededUpRobustFeaturePoint> expected;
List <SpeededUpRobustFeaturePoint> actual;
// Create OpenSURF detector by Chris Evans
{
// Create Integral Image
var clone = Accord.Imaging.Image.Clone(img);
OpenSURFcs.IntegralImage iimg = OpenSURFcs.IntegralImage.FromImage(clone);
// Extract the interest points
var pts = OpenSURFcs.FastHessian.getIpoints(0.0002f, 5, 2, iimg);
// Describe the interest points
OpenSURFcs.SurfDescriptor.DecribeInterestPoints(pts, upright, extended, iimg);
expected = new List <SpeededUpRobustFeaturePoint>();
foreach (var p in pts)
{
expected.Add(new SpeededUpRobustFeaturePoint(
p.x, p.y, p.scale,
p.laplacian, p.orientation,
p.response, p.descriptor.ToDouble()));
}
}
{
// Create the detector
var surf = new SpeededUpRobustFeaturesDetector(0.0002f, 5, 2);
// Extract interest points
var clone = Accord.Imaging.Image.Clone(img);
actual = surf.ProcessImage(clone);
// Describe the interest points
var descriptor = surf.GetDescriptor();
descriptor.Invariant = !upright;
descriptor.Extended = extended;
foreach (var expectedPoint in expected)
{
var actualPoint = new SpeededUpRobustFeaturePoint(
expectedPoint.X,
expectedPoint.Y,
expectedPoint.Scale,
expectedPoint.Laplacian);
descriptor.Compute(actualPoint);
Assert.AreEqual(expectedPoint.X, actualPoint.X);
Assert.AreEqual(expectedPoint.Y, actualPoint.Y);
Assert.AreEqual(expectedPoint.Scale, actualPoint.Scale);
Assert.AreEqual(expectedPoint.Orientation, actualPoint.Orientation);
Assert.AreEqual(expectedPoint.Response, actualPoint.Response);
Assert.AreEqual(expectedPoint.Descriptor.Length, actualPoint.Descriptor.Length);
for (int i = 0; i < expectedPoint.Descriptor.Length; i++)
{
double e = expectedPoint.Descriptor[i];
double a = actualPoint.Descriptor[i];
double u = System.Math.Abs(e - a);
double v = System.Math.Abs(e);
Assert.AreEqual(e, a, 0.05);
}
}
}
}
}
