Added unit test for SimpleBlobDetector detect function call with mask

Emgu.CV.Test/AutoTestFeatures2d.cs

@@ -637,14 +637,20 @@ namespace Emgu.CV.Test
         [Test]
         public void TestSimpleBlobDetector()
         {
-            Mat box = EmguAssert.LoadMat("box.png");
-            SimpleBlobDetectorParams p = new SimpleBlobDetectorParams();
-            p.CollectContours = true;
-            SimpleBlobDetector detector = new SimpleBlobDetector(p);
-            MKeyPoint[] keypoints = detector.Detect(box);
-            using (VectorOfVectorOfPoint contour = detector.GetBlobContours())
+            using (Mat box = EmguAssert.LoadMat("box.png"))
             {
-                int count = contour.Size;
+                SimpleBlobDetectorParams p = new SimpleBlobDetectorParams();
+                p.CollectContours = true;
+                SimpleBlobDetector detector = new SimpleBlobDetector(p);
+                using (Mat mask = new Mat(box.Size, DepthType.Cv8U, 1))
+                {
+                    mask.SetTo(new MCvScalar(255));
+                    MKeyPoint[] keypoints = detector.Detect(box, mask);
+                    using (VectorOfVectorOfPoint contour = detector.GetBlobContours())
+                    {
+                        int count = contour.Size;
+                    }
+                }
             }
         }
     }

tests/cvextern_test/cvextern_test.cpp

@@ -3,6 +3,7 @@
 #include "stdio.h"
 #include <iostream>
 #include "quaternions.h"
+#include "opencv2/features2d.hpp"
 #include "opencv2/opencv_modules.hpp"
 
 #include "opencv2/core/core.hpp"
@@ -258,6 +259,19 @@ void Test_InferenceEngine()
 }
 #endif
 
+#ifdef HAVE_OPENCV_FEATURES2D
+void Test_SimpleBlobDetector()
+{
+	cv::Mat m(600, 480, CV_8UC1);
+	cv::Ptr<cv::SimpleBlobDetector> detector = cv::SimpleBlobDetector::create();
+	cv::Mat mask(m.size(), CV_8UC1);
+	mask.setTo(255);
+	std::vector<cv::KeyPoint> kps;
+	detector->detect(m, kps, mask);
+	cout << "SimpleBlobDetector: Passed";
+}
+#endif
+
 int main()
 {
 	char tmp;
@@ -308,6 +322,10 @@ int main()
 	Test_InferenceEngine();
 #endif
 
+#ifdef HAVE_OPENCV_FEATURES2D
+	Test_SimpleBlobDetector();
+#endif
+
 	cin >> tmp; //wait for input only if compiling with visual C++ 
 #endif