Accord.Tests.Imaging.KNearestNeighborMatchingTest.MatchTest3 C# (CSharp) Method

        public void MatchTest3()
        {
            var old = Accord.Imaging.Image.Clone(Properties.Resources.old);
            var flower01 = Accord.Imaging.Image.Clone(Properties.Resources.flower01);

            FastCornersDetector fast = new FastCornersDetector(threshold: 10);

            FastRetinaKeypointDetector freak = new FastRetinaKeypointDetector(fast);

            var keyPoints1 = freak.ProcessImage(old).ToArray();
            var keyPoints2 = freak.ProcessImage(flower01).ToArray();

            var matcher = new KNearestNeighborMatching<byte[]>(5, new Hamming());

            { // direct
                IntPoint[][] matches = matcher.Match(keyPoints1, keyPoints2);
                Assert.AreEqual(2, matches.Length);
                Assert.AreEqual(143, matches[0].Length);
                Assert.AreEqual(143, matches[1].Length);
                Assert.AreEqual(532, matches[0][0].X);
                Assert.AreEqual(159, matches[0][0].Y);
                Assert.AreEqual(keyPoints2[0].ToIntPoint(), matches[1][0]);
            }

            { // reverse
                IntPoint[][] matches = matcher.Match(keyPoints2, keyPoints1);
                Assert.AreEqual(2, matches.Length);
                Assert.AreEqual(143, matches[0].Length);
                Assert.AreEqual(143, matches[1].Length);
                Assert.AreEqual(keyPoints2[0].ToIntPoint(), matches[0][0]);
                Assert.AreEqual(532, matches[1][0].X);
                Assert.AreEqual(159, matches[1][0].Y);
            }

        }