diff -ruN opencv_contrib-4.1.1/modules/bgsegm/src/bgfg_gsoc.cpp opencv_contrib-4.1.1-patch/modules/bgsegm/src/bgfg_gsoc.cpp
--- opencv_contrib-4.1.1/modules/bgsegm/src/bgfg_gsoc.cpp	2019-07-22 02:59:59.000000000 +0900
+++ opencv_contrib-4.1.1-patch/modules/bgsegm/src/bgfg_gsoc.cpp	2019-07-31 11:51:59.384483904 +0900
@@ -265,7 +265,7 @@
 
 class BackgroundModelGSOC : public BackgroundModel<BackgroundSampleGSOC> {
 public:
-    BackgroundModelGSOC(Size sz, int S) : BackgroundModel(sz, S) {};
+    BackgroundModelGSOC(Size sz, int S) : BackgroundModel<BackgroundSampleGSOC>(sz, S) {};
 
     float findClosest(int i, int j, const Point3f& color, int& indOut) const {
         const int end = i * stride + (j + 1) * nSamples;
@@ -316,7 +316,7 @@
 
 class BackgroundModelLSBP : public BackgroundModel<BackgroundSampleLSBP> {
 public:
-    BackgroundModelLSBP(Size sz, int S) : BackgroundModel(sz, S) {};
+    BackgroundModelLSBP(Size sz, int S) : BackgroundModel<BackgroundSampleLSBP>(sz, S) {};
 
     int countMatches(int i, int j, const Point3f& color, int desc, float threshold, int descThreshold, float& minDist) const {
         const int end = i * stride + (j + 1) * nSamples;
diff -ruN opencv_contrib-4.1.1/modules/face/include/opencv2/face/facemarkLBF.hpp opencv_contrib-4.1.1-patch/modules/face/include/opencv2/face/facemarkLBF.hpp
--- opencv_contrib-4.1.1/modules/face/include/opencv2/face/facemarkLBF.hpp	2019-07-22 02:59:59.000000000 +0900
+++ opencv_contrib-4.1.1-patch/modules/face/include/opencv2/face/facemarkLBF.hpp	2019-07-31 11:51:59.385483910 +0900
@@ -93,7 +93,7 @@
 
     };
 
-    class BBox {
+    class CV_EXPORTS BBox {
     public:
         BBox();
         ~BBox();
diff -ruN opencv_contrib-4.1.1/modules/quality/include/opencv2/quality/qualitymse.hpp opencv_contrib-4.1.1-patch/modules/quality/include/opencv2/quality/qualitymse.hpp
--- opencv_contrib-4.1.1/modules/quality/include/opencv2/quality/qualitymse.hpp	2019-07-22 02:59:59.000000000 +0900
+++ opencv_contrib-4.1.1-patch/modules/quality/include/opencv2/quality/qualitymse.hpp	2019-07-31 12:23:56.995734280 +0900
@@ -22,7 +22,7 @@
     @param cmpImgs Comparison image(s)
     @returns cv::Scalar with per-channel quality values.  Values range from 0 (best) to potentially max float (worst)
     */
-    CV_WRAP cv::Scalar compute( InputArrayOfArrays cmpImgs ) CV_OVERRIDE;
+    CV_WRAP cv::Scalar compute( InputArray cmpImgs ) CV_OVERRIDE;
 
     /** @brief Implements Algorithm::empty()  */
     CV_WRAP bool empty() const CV_OVERRIDE { return _ref.empty() && QualityBase::empty(); }
@@ -61,4 +61,4 @@
 };  // QualityMSE
 }   // quality
 }   // cv
-#endif
\ No newline at end of file
+#endif
diff -ruN opencv_contrib-4.1.1/modules/tracking/include/opencv2/tracking/feature.hpp opencv_contrib-4.1.1-patch/modules/tracking/include/opencv2/tracking/feature.hpp
--- opencv_contrib-4.1.1/modules/tracking/include/opencv2/tracking/feature.hpp	2019-07-22 02:59:59.000000000 +0900
+++ opencv_contrib-4.1.1-patch/modules/tracking/include/opencv2/tracking/feature.hpp	2019-07-31 11:51:59.385483910 +0900
@@ -100,8 +100,6 @@
     (p3) = (rect).x + (rect).width - (rect).height                        \
            + (step) * ((rect).y + (rect).width + (rect).height);
 
-float calcNormFactor( const Mat& sum, const Mat& sqSum );
-
 template<class Feature>
 void _writeFeatures( const std::vector<Feature> features, FileStorage &fs, const Mat& featureMap )
 {
@@ -117,7 +115,7 @@
   fs << "]";
 }
 
-class CvParams
+class CV_EXPORTS CvParams
 {
  public:
   CvParams();
@@ -134,7 +132,7 @@
   std::string name;
 };
 
-class CvFeatureParams : public CvParams
+class CV_EXPORTS CvFeatureParams : public CvParams
 {
  public:
   enum FeatureType
@@ -154,7 +152,7 @@
   int numFeatures;
 };
 
-class CvFeatureEvaluator
+class CV_EXPORTS CvFeatureEvaluator
 {
  public:
   virtual ~CvFeatureEvaluator()
@@ -196,7 +194,7 @@
   Mat cls;
 };
 
-class CvHaarFeatureParams : public CvFeatureParams
+class CV_EXPORTS CvHaarFeatureParams : public CvFeatureParams
 {
  public:
 
@@ -213,11 +211,11 @@
   bool isIntegral;
 };
 
-class CvHaarEvaluator : public CvFeatureEvaluator
+class CV_EXPORTS CvHaarEvaluator : public CvFeatureEvaluator
 {
  public:
 
-  class FeatureHaar
+  class CV_EXPORTS FeatureHaar
   {
 
    public:
@@ -290,12 +288,12 @@
   Mat sum; /* sum images (each row represents image) */
 };
 
-struct CvHOGFeatureParams : public CvFeatureParams
+struct CV_EXPORTS CvHOGFeatureParams : public CvFeatureParams
 {
   CvHOGFeatureParams();
 };
 
-class CvHOGEvaluator : public CvFeatureEvaluator
+class CV_EXPORTS CvHOGEvaluator : public CvFeatureEvaluator
 {
  public:
   virtual ~CvHOGEvaluator()
@@ -356,13 +354,13 @@
   return res;
 }
 
-struct CvLBPFeatureParams : CvFeatureParams
+struct CV_EXPORTS CvLBPFeatureParams : CvFeatureParams
 {
   CvLBPFeatureParams();
 
 };
 
-class CvLBPEvaluator : public CvFeatureEvaluator
+class CV_EXPORTS CvLBPEvaluator : public CvFeatureEvaluator
 {
  public:
   virtual ~CvLBPEvaluator() CV_OVERRIDE
diff -ruN opencv_contrib-4.1.1/modules/tracking/include/opencv2/tracking/onlineBoosting.hpp opencv_contrib-4.1.1-patch/modules/tracking/include/opencv2/tracking/onlineBoosting.hpp
--- opencv_contrib-4.1.1/modules/tracking/include/opencv2/tracking/onlineBoosting.hpp	2019-07-22 02:59:59.000000000 +0900
+++ opencv_contrib-4.1.1-patch/modules/tracking/include/opencv2/tracking/onlineBoosting.hpp	2019-07-31 11:51:59.385483910 +0900
@@ -59,7 +59,7 @@
 class ClassifierThreshold;
 class Detector;
 
-class StrongClassifierDirectSelection
+class CV_EXPORTS StrongClassifierDirectSelection
 {
  public:
 
@@ -106,7 +106,7 @@
   int swappedClassifier;
 };
 
-class BaseClassifier
+class CV_EXPORTS BaseClassifier
 {
  public:
 
@@ -148,7 +148,7 @@
 
 };
 
-class EstimatedGaussDistribution
+class CV_EXPORTS EstimatedGaussDistribution
 {
  public:
 
@@ -170,7 +170,7 @@
   float m_R_sigma;
 };
 
-class WeakClassifierHaarFeature
+class CV_EXPORTS WeakClassifierHaarFeature
 {
 
  public:
@@ -192,7 +192,7 @@
 
 };
 
-class Detector
+class CV_EXPORTS Detector
 {
  public:
 
@@ -260,7 +260,7 @@
   cv::Mat_<unsigned char> m_confImageDisplay;
 };
 
-class ClassifierThreshold
+class CV_EXPORTS ClassifierThreshold
 {
  public:
 
diff -ruN opencv_contrib-4.1.1/modules/tracking/include/opencv2/tracking/onlineMIL.hpp opencv_contrib-4.1.1-patch/modules/tracking/include/opencv2/tracking/onlineMIL.hpp
--- opencv_contrib-4.1.1/modules/tracking/include/opencv2/tracking/onlineMIL.hpp	2019-07-22 02:59:59.000000000 +0900
+++ opencv_contrib-4.1.1-patch/modules/tracking/include/opencv2/tracking/onlineMIL.hpp	2019-07-31 11:51:59.385483910 +0900
@@ -87,7 +87,7 @@
 
 };
 
-class ClfOnlineStump
+class CV_EXPORTS ClfOnlineStump
 {
  public:
   float _mu0, _mu1, _sig0, _sig1;
diff -ruN opencv_contrib-4.1.1/modules/tracking/include/opencv2/tracking/tracker.hpp opencv_contrib-4.1.1-patch/modules/tracking/include/opencv2/tracking/tracker.hpp
--- opencv_contrib-4.1.1/modules/tracking/include/opencv2/tracking/tracker.hpp	2019-07-22 02:59:59.000000000 +0900
+++ opencv_contrib-4.1.1-patch/modules/tracking/include/opencv2/tracking/tracker.hpp	2019-07-31 11:51:59.386483917 +0900
@@ -176,7 +176,7 @@
   /** @overload
     @param feature The TrackerFeature class
     */
-  bool addTrackerFeature( Ptr<TrackerFeature>& feature );
+  bool addTrackerFeature( Ptr<TrackerFeature> feature );
 
   /** @brief Get the TrackerFeature collection (TrackerFeature name, TrackerFeature pointer)
      */
@@ -309,7 +309,7 @@
   /** @overload
     @param sampler The TrackerSamplerAlgorithm
     */
-  bool addTrackerSamplerAlgorithm( Ptr<TrackerSamplerAlgorithm>& sampler );
+  bool addTrackerSamplerAlgorithm( Ptr<TrackerSamplerAlgorithm> sampler );
 
  private:
   std::vector<std::pair<String, Ptr<TrackerSamplerAlgorithm> > > samplers;
@@ -573,7 +573,7 @@
   /**
    * Implementation of the target state for TrackerStateEstimatorMILBoosting
    */
-  class TrackerMILTargetState : public TrackerTargetState
+  class CV_EXPORTS TrackerMILTargetState : public TrackerTargetState
   {
 
    public:
@@ -648,7 +648,7 @@
  public:
   /** @brief Implementation of the target state for TrackerAdaBoostingTargetState
     */
-  class TrackerAdaBoostingTargetState : public TrackerTargetState
+  class CV_EXPORTS TrackerAdaBoostingTargetState : public TrackerTargetState
   {
 
    public:
diff -ruN opencv_contrib-4.1.1/modules/tracking/src/onlineMIL.cpp opencv_contrib-4.1.1-patch/modules/tracking/src/onlineMIL.cpp
--- opencv_contrib-4.1.1/modules/tracking/src/onlineMIL.cpp	2019-07-22 02:59:59.000000000 +0900
+++ opencv_contrib-4.1.1-patch/modules/tracking/src/onlineMIL.cpp	2019-07-31 11:51:59.386483917 +0900
@@ -364,7 +364,7 @@
   return float( log_p1 - log_p0 );
 }
 
-inline std::vector<float> ClfOnlineStump::classifySetF( const Mat& x )
+CV_EXPORTS std::vector<float> ClfOnlineStump::classifySetF( const Mat& x )
 {
   std::vector<float> res( x.rows );
 
diff -ruN opencv_contrib-4.1.1/modules/tracking/src/trackerFeatureSet.cpp opencv_contrib-4.1.1-patch/modules/tracking/src/trackerFeatureSet.cpp
--- opencv_contrib-4.1.1/modules/tracking/src/trackerFeatureSet.cpp	2019-07-22 02:59:59.000000000 +0900
+++ opencv_contrib-4.1.1-patch/modules/tracking/src/trackerFeatureSet.cpp	2019-07-31 11:51:59.386483917 +0900
@@ -111,7 +111,7 @@
   return true;
 }
 
-bool TrackerFeatureSet::addTrackerFeature( Ptr<TrackerFeature>& feature )
+bool TrackerFeatureSet::addTrackerFeature( Ptr<TrackerFeature> feature )
 {
   if( blockAddTrackerFeature )
   {
diff -ruN opencv_contrib-4.1.1/modules/tracking/src/trackerSampler.cpp opencv_contrib-4.1.1-patch/modules/tracking/src/trackerSampler.cpp
--- opencv_contrib-4.1.1/modules/tracking/src/trackerSampler.cpp	2019-07-22 02:59:59.000000000 +0900
+++ opencv_contrib-4.1.1-patch/modules/tracking/src/trackerSampler.cpp	2019-07-31 11:51:59.386483917 +0900
@@ -106,7 +106,7 @@
   return true;
 }
 
-bool TrackerSampler::addTrackerSamplerAlgorithm( Ptr<TrackerSamplerAlgorithm>& sampler )
+bool TrackerSampler::addTrackerSamplerAlgorithm( Ptr<TrackerSamplerAlgorithm> sampler )
 {
   if( blockAddTrackerSampler )
   {