Fixed bug in videostab sample. Fixed model size in global estimators.

modules/videostab/include/opencv2/videostab/global_motion.hpp

@@ -80,11 +80,11 @@ struct CV_EXPORTS RansacParams
     RansacParams(int size, float thresh, float eps, float prob)
         : size(size), thresh(thresh), eps(eps), prob(prob) {}
 
-    static RansacParams translation2dMotionStd() { return RansacParams(2, 0.5f, 0.5f, 0.99f); }
-    static RansacParams translationAndScale2dMotionStd() { return RansacParams(3, 0.5f, 0.5f, 0.99f); }
-    static RansacParams linearSimilarity2dMotionStd() { return RansacParams(4, 0.5f, 0.5f, 0.99f); }
-    static RansacParams affine2dMotionStd() { return RansacParams(6, 0.5f, 0.5f, 0.99f); }
-    static RansacParams homography2dMotionStd() { return RansacParams(8, 0.5f, 0.5f, 0.99f); }
+    static RansacParams translation2dMotionStd() { return RansacParams(1, 0.5f, 0.5f, 0.99f); }
+    static RansacParams translationAndScale2dMotionStd() { return RansacParams(2, 0.5f, 0.5f, 0.99f); }
+    static RansacParams linearSimilarity2dMotionStd() { return RansacParams(2, 0.5f, 0.5f, 0.99f); }
+    static RansacParams affine2dMotionStd() { return RansacParams(3, 0.5f, 0.5f, 0.99f); }
+    static RansacParams homography2dMotionStd() { return RansacParams(4, 0.5f, 0.5f, 0.99f); }
 };
 
 CV_EXPORTS Mat estimateGlobalMotionRobust(

modules/videostab/src/global_motion.cpp

@@ -377,7 +377,7 @@ Mat PyrLkRobustMotionEstimator::estimate(const Mat &frame0, const Mat &frame1)
     else
     {
         vector<uchar> mask;
-        M = findHomography(pointsPrevGood_, pointsGood_, CV_RANSAC, ransacParams_.thresh, mask);
+        M = findHomography(pointsPrevGood_, pointsGood_, mask, CV_RANSAC, ransacParams_.thresh);
 
         ninliers = 0;
         rmse = 0;

samples/cpp/videostab.cpp

@@ -262,8 +262,12 @@ int main(int argc, const char **argv)
         }
 
         if (arg("save-motions") != "no")
+        {
+            MotionModel model = stabilizer->motionEstimator()->motionModel();
             stabilizer->setMotionEstimator(
                     new ToFileMotionWriter(arg("save-motions"), stabilizer->motionEstimator()));
+            stabilizer->motionEstimator()->setMotionModel(model);
+        }
 
         stabilizer->setRadius(argi("radius"));
         if (arg("deblur") == "yes")