public void TestThreshold() { var image = new ImageArray(new byte[] { 1, 2, 3, 4 }, 2, 2); var result = image.Threshold(2, 10, ThresholdType.Binary); Assert.AreEqual(0, result.At(0, 0)); Assert.AreEqual(0, result.At(1, 0)); Assert.AreEqual(10, result.At(0, 1)); Assert.AreEqual(10, result.At(1, 1)); }