Merge pull request #14667 from asashour:javadoc

modules/features2d/include/opencv2/features2d.hpp

@@ -328,7 +328,7 @@ public:
     but it is a little faster to compute.
     @param patchSize size of the patch used by the oriented BRIEF descriptor. Of course, on smaller
     pyramid layers the perceived image area covered by a feature will be larger.
-    @param fastThreshold
+    @param fastThreshold the fast threshold
      */
     CV_WRAP static Ptr<ORB> create(int nfeatures=500, float scaleFactor=1.2f, int nlevels=8, int edgeThreshold=31,
         int firstLevel=0, int WTA_K=2, int scoreType=ORB::HARRIS_SCORE, int patchSize=31, int fastThreshold=20);