Merge pull request #722 from gpsinghsandhu:blob-detector-cpp

modules/features2d/src/blobdetector.cpp

@@ -239,7 +239,7 @@ void SimpleBlobDetector::findBlobs(const cv::Mat &image, const cv::Mat &binaryIm
             if (ratio < params.minConvexity || ratio >= params.maxConvexity)
                 continue;
         }
-
+        
         center.location = Point2d(moms.m10 / moms.m00, moms.m01 / moms.m00);
 
         if (params.filterByColor)
@@ -260,8 +260,11 @@ void SimpleBlobDetector::findBlobs(const cv::Mat &image, const cv::Mat &binaryIm
             center.radius = (dists[(dists.size() - 1) / 2] + dists[dists.size() / 2]) / 2.;
         }
 
+        if(moms.m00 == 0.0)
+            continue;
         centers.push_back(center);
 
+
 #ifdef DEBUG_BLOB_DETECTOR
         //    circle( keypointsImage, center.location, 1, Scalar(0,0,255), 1 );
 #endif