Merge pull request #14561 from alalek:fix_ctors_with_uninitialized_vars

modules/calib3d/src/levmarq.cpp

@@ -80,11 +80,8 @@ namespace cv
 class LMSolverImpl CV_FINAL : public LMSolver
 {
 public:
-    LMSolverImpl() : maxIters(100) { init(); }
-    LMSolverImpl(const Ptr<LMSolver::Callback>& _cb, int _maxIters) : cb(_cb), epsx(FLT_EPSILON), epsf(FLT_EPSILON), maxIters(_maxIters) { init(); }
-    LMSolverImpl(const Ptr<LMSolver::Callback>& _cb, int _maxIters, double _eps) : cb(_cb), epsx(_eps), epsf(_eps), maxIters(_maxIters) { init(); }
-
-    void init()
+    LMSolverImpl(const Ptr<LMSolver::Callback>& _cb, int _maxIters, double _eps = FLT_EPSILON)
+        : cb(_cb), epsx(_eps), epsf(_eps), maxIters(_maxIters)
     {
         printInterval = 0;
     }