Fixed warnings

samples/cpp/tutorial_code/calib3d/real_time_pose_estimation/src/CsvReader.cpp

@@ -11,7 +11,7 @@ CsvReader::CsvReader(const std::string &path, const char &separator){
 void CsvReader::readPLY(std::vector<cv::Point3f> &list_vertex, std::vector<std::vector<int> > &list_triangles)
 {
     std::string line, tmp_str, n;
-    int num_vertex, num_triangles;
+    int num_vertex = 0, num_triangles = 0;
     int count = 0;
     bool end_header = false;
     bool end_vertex = false;

samples/cpp/tutorial_code/calib3d/real_time_pose_estimation/src/CsvWriter.cpp

@@ -29,7 +29,7 @@ void CsvWriter::writeXYZ(const std::vector<cv::Point3f> &list_points3d)
 void CsvWriter::writeUVXYZ(const std::vector<cv::Point3f> &list_points3d, const std::vector<cv::Point2f> &list_points2d, const cv::Mat &descriptors)
 {
   std::string u, v, x, y, z, descriptor_str;
-  for(int i = 0; i < list_points3d.size(); ++i)
+  for(unsigned int i = 0; i < list_points3d.size(); ++i)
   {
     u = FloatToString(list_points2d[i].x);
     v = FloatToString(list_points2d[i].y);
@@ -41,8 +41,7 @@ void CsvWriter::writeUVXYZ(const std::vector<cv::Point3f> &list_points3d, const
 
     for(int j = 0; j < 32; ++j)
     {
-      std::cout << descriptors.at<float>(i,j) << std::endl;
-      descriptor_str = FloatToString(descriptors.at<float>(i,j));
+      descriptor_str = FloatToString((float)descriptors.at<float>(i,j));
       _file << _separator << descriptor_str;
     }
     _file << std::endl;