diff --git a/apps/display_levels/Makefile b/apps/display_levels/Makefile
index 9e17f84c7b60f22fa315a0602216ceab2fcfa5d7..5ac3a9fe2d72c8cbc8b973db931afa408a4a53db 100644
--- a/apps/display_levels/Makefile
+++ b/apps/display_levels/Makefile
@@ -12,6 +12,7 @@ display_levels: display_levels.o
 	$(CCP) $^ -o $@ -L$(API_PATH)/build -lsandbox $(DEP_SANDBOX)
 
 %.o: %.cpp
+	#$(CCP) $(DBG_GPROF) $(CFLAGS) -I$(API_PATH)/inc -c $< -o $@ 
 	$(CCP) $(CFLAGS) -I$(API_PATH)/inc -c $< -o $@ 
 
 run:
diff --git a/apps/display_levels/display_levels.cpp b/apps/display_levels/display_levels.cpp
index 64c7b966c221d7058bb80f4fc5fa7366a5f2179a..dc3ed3c1156342fb578927fd2cf41ae6a267d7a4 100644
--- a/apps/display_levels/display_levels.cpp
+++ b/apps/display_levels/display_levels.cpp
@@ -12,7 +12,7 @@ int main(){
     char *sandbox_conf_file = (char*)"../../sandbox_conf.yaml";
   
     // Debug
-//    char * sandbox_conf_file = (char *)"../../../sandbox_conf.yaml";
+    //char * sandbox_conf_file = (char *)"../../../sandbox_conf.yaml";
 
     if(sandbox.loadConfigFrom(sandbox_conf_file)){
         std::cout << "Failed to load the configuration" << std::endl;
@@ -34,7 +34,7 @@ int main(){
 */
 void displayLevels(Sandbox &sandbox){
 
-    float sandboxHeight = 0.2f;
+    float sandboxHeight = 0.17f;
     // top => distance from camera to the top of the sandbox
     float top = sandbox.getProjection()->getDistanceTopSandbox();
         
@@ -54,20 +54,20 @@ void displayLevels(Sandbox &sandbox){
 /*
     std::chrono::milliseconds start_ms = std::chrono::duration_cast< std::chrono::milliseconds >( std::chrono::system_clock::now().time_since_epoch() );
     int cpt_frame = 0;
-*/  
+*/ 
     do{
     //for(int i=0; i<200; i++){
         sandbox.captureFrame();
         sandbox.getDepthFrame().copyTo(new_depth);
         new_depth.copyTo( depth_cache, (cv::abs(depth_cache-new_depth) > DEPTH_MARGIN_ERROR) );
 
-        colorizeDepth(depth_cache, top-sandboxHeight, sandboxHeight).copyTo(colorized);
+        colorizeDepth(depth_cache, top, sandboxHeight).copyTo(colorized);
         cv::cvtColor(colorized, res, CV_RGB2BGR);
         sandbox.adjustProjection(res).copyTo(res);
 
         cv::imshow(windowName, res);
 
-        /*
+/*        
         cpt_frame++;
         std::chrono::milliseconds now_ms = std::chrono::duration_cast< std::chrono::milliseconds >( std::chrono::system_clock::now().time_since_epoch() );
         if(now_ms-start_ms > std::chrono::milliseconds(1000)){
@@ -75,7 +75,7 @@ void displayLevels(Sandbox &sandbox){
             cpt_frame = 0;
             start_ms = std::chrono::duration_cast< std::chrono::milliseconds >( std::chrono::system_clock::now().time_since_epoch() );
         }
-        */
+*/        
 
     //}
     } while (cv::waitKey(10) != ESCAPE_CHAR);
diff --git a/apps/display_levels/gprof/gmon.out b/apps/display_levels/gprof/gmon.out
index 9864ddbb4760c6db673cfdbef6cd033d584e5b52..05c695b8209ee5835bfdec7ecf8f77147d5b837e 100644
Binary files a/apps/display_levels/gprof/gmon.out and b/apps/display_levels/gprof/gmon.out differ
diff --git a/apps/display_levels/gprof/gprof (copy).output b/apps/display_levels/gprof/gprof (copy).output
new file mode 100644
index 0000000000000000000000000000000000000000..e73afdc63748ea7ca6638d43e5dee6a332afac13
--- /dev/null
+++ b/apps/display_levels/gprof/gprof (copy).output	
@@ -0,0 +1,555 @@
+Flat profile:
+
+Each sample counts as 0.01 seconds.
+  %   cumulative   self              self     total           
+ time   seconds   seconds    calls   s/call   s/call  name    
+ 27.39      0.43     0.43 29275971     0.00     0.00  floatToColor(float, float, float)
+ 17.20      0.70     0.27 29275971     0.00     0.00  float& cv::Mat::at<float>(int, int)
+ 13.69      0.92     0.22 87827913     0.00     0.00  cv::Vec<double, 4>::operator[](int)
+ 11.47      1.10     0.18 87827913     0.00     0.00  cv::Vec<unsigned char, 3>& cv::Mat::at<cv::Vec<unsigned char, 3> >(int, int)
+  9.87      1.25     0.16 87827913     0.00     0.00  cv::Vec<unsigned char, 3>::operator[](int)
+  7.01      1.36     0.11 29276817     0.00     0.00  cv::Matx<double, 4, 1>::Matx()
+  5.73      1.45     0.09      141     0.00     0.01  colorizeDepth(cv::Mat, float, float)
+  3.18      1.50     0.05 29275971     0.00     0.00  cv::Scalar_<double>::Scalar_(double, double, double, double)
+  2.55      1.54     0.04 29276112     0.00     0.00  cv::Vec<double, 4>::Vec()
+  0.64      1.55     0.01      141     0.00     0.00  bool std::chrono::operator><long, std::ratio<1l, 1000l>, long, std::ratio<1l, 1000l> >(std::chrono::duration<long, std::ratio<1l, 1000l> > const&, std::chrono::duration<long, std::ratio<1l, 1000l> > const&)
+  0.64      1.56     0.01                             bool YAML::RegEx::IsValidSource<YAML::StreamCharSource>(YAML::StreamCharSource const&) const
+  0.32      1.57     0.01      141     0.00     0.00  cv::Mat::Mat(cv::Mat const&)
+  0.32      1.57     0.01        3     0.00     0.00  cv::Mat::Mat(cv::Size_<int>, int)
+  0.00      1.57     0.00     5660     0.00     0.00  cv::Mat::release()
+  0.00      1.57     0.00     5484     0.00     0.00  operator new(unsigned long, void*)
+  0.00      1.57     0.00     4659     0.00     0.00  cv::Mat::~Mat()
+  0.00      1.57     0.00     3809     0.00     0.00  cv::_InputArray::init(int, void const*)
+  0.00      1.57     0.00     3118     0.00     0.00  cv::MatStep::operator[](int)
+  0.00      1.57     0.00     3110     0.00     0.00  cv::MatStep::operator[](int) const
+  0.00      1.57     0.00     2680     0.00     0.00  cv::Size_<int>::Size_()
+  0.00      1.57     0.00     2539     0.00     0.00  cv::_InputArray::~_InputArray()
+  0.00      1.57     0.00     1989     0.00     0.00  cv::MatSize::MatSize(int*)
+  0.00      1.57     0.00     1989     0.00     0.00  cv::MatStep::MatStep()
+  0.00      1.57     0.00     1693     0.00     0.00  cv::Size_<int>::Size_(int, int)
+  0.00      1.57     0.00     1411     0.00     0.00  cv::_InputArray::_InputArray()
+  0.00      1.57     0.00      987     0.00     0.00  cv::MatExpr::~MatExpr()
+  0.00      1.57     0.00      705     0.00     0.00  cv::_OutputArray::_OutputArray(cv::Mat&)
+  0.00      1.57     0.00      705     0.00     0.00  cv::_OutputArray::~_OutputArray()
+  0.00      1.57     0.00      564     0.00     0.00  std::chrono::duration<long, std::ratio<1l, 1000l> >::count() const
+  0.00      1.57     0.00      423     0.00     0.00  cv::_InputArray::_InputArray(cv::MatExpr const&)
+  0.00      1.57     0.00      423     0.00     0.00  cv::Mat::Mat()
+  0.00      1.57     0.00      330     0.00     0.00  std::chrono::duration<long, std::ratio<1l, 1000l> >::duration<long, void>(long const&)
+  0.00      1.57     0.00      282     0.00     0.00  cv::_InputArray::init(int, void const*, cv::Size_<int>)
+  0.00      1.57     0.00      282     0.00     0.00  cv::_InputArray::_InputArray(cv::Mat const&)
+  0.00      1.57     0.00      282     0.00     0.00  cv::_InputArray::_InputArray(double const&)
+  0.00      1.57     0.00      282     0.00     0.00  cv::Mat_<cv::Vec<unsigned char, 3> >::~Mat_()
+  0.00      1.57     0.00      282     0.00     0.00  cv::Size_<int>::operator=(cv::Size_<int> const&)
+  0.00      1.57     0.00      282     0.00     0.00  cv::MatExpr::operator cv::Mat() const
+  0.00      1.57     0.00      189     0.00     0.00  std::chrono::time_point<std::chrono::_V2::system_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >::time_since_epoch() const
+  0.00      1.57     0.00      189     0.00     0.00  std::chrono::duration<long, std::ratio<1l, 1000000000l> >::count() const
+  0.00      1.57     0.00      189     0.00     0.00  std::enable_if<std::chrono::__is_duration<std::chrono::duration<long, std::ratio<1l, 1000l> > >::value, std::chrono::duration<long, std::ratio<1l, 1000l> > >::type std::chrono::duration_cast<std::chrono::duration<long, std::ratio<1l, 1000l> >, long, std::ratio<1l, 1000000000l> >(std::chrono::duration<long, std::ratio<1l, 1000000000l> > const&)
+  0.00      1.57     0.00      189     0.00     0.00  std::chrono::duration<long, std::ratio<1l, 1000l> > std::chrono::__duration_cast_impl<std::chrono::duration<long, std::ratio<1l, 1000l> >, std::ratio<1l, 1000000l>, long, true, false>::__cast<long, std::ratio<1l, 1000000000l> >(std::chrono::duration<long, std::ratio<1l, 1000000000l> > const&)
+  0.00      1.57     0.00      148     0.00     0.00  cv::Mat::create(int, int, int)
+  0.00      1.57     0.00      143     0.00     0.00  cv::String::String(char const*)
+  0.00      1.57     0.00      143     0.00     0.00  cv::String::~String()
+  0.00      1.57     0.00      142     0.00     0.00  cv::Mat_<float>::~Mat_()
+  0.00      1.57     0.00      141     0.00     0.00  cv::Mat::Mat(int, int, int)
+  0.00      1.57     0.00      141     0.00     0.00  cv::Mat::operator=(cv::Mat const&)
+  0.00      1.57     0.00      141     0.00     0.00  cv::Mat_<cv::Vec<unsigned char, 3> >::Mat_(cv::Mat const&)
+  0.00      1.57     0.00      141     0.00     0.00  cv::Mat_<cv::Vec<unsigned char, 3> >::operator=(cv::Mat const&)
+  0.00      1.57     0.00      141     0.00     0.00  cv::Scalar_<double>::Scalar_(double)
+  0.00      1.57     0.00      141     0.00     0.00  cv::Mat::type() const
+  0.00      1.57     0.00      141     0.00     0.00  std::chrono::duration<long, std::ratio<1l, 1000l> >::duration<int, void>(int const&)
+  0.00      1.57     0.00      141     0.00     0.00  bool std::chrono::operator< <long, std::ratio<1l, 1000l>, long, std::ratio<1l, 1000l> >(std::chrono::duration<long, std::ratio<1l, 1000l> > const&, std::chrono::duration<long, std::ratio<1l, 1000l> > const&)
+  0.00      1.57     0.00      141     0.00     0.00  std::common_type<std::chrono::duration<long, std::ratio<1l, 1000l> >, std::chrono::duration<long, std::ratio<1l, 1000l> > >::type std::chrono::operator-<long, std::ratio<1l, 1000l>, long, std::ratio<1l, 1000l> >(std::chrono::duration<long, std::ratio<1l, 1000l> > const&, std::chrono::duration<long, std::ratio<1l, 1000l> > const&)
+  0.00      1.57     0.00        3     0.00     0.00  cv::MatSize::operator()() const
+  0.00      1.57     0.00        1     0.00     0.00  _GLOBAL__sub_I_main
+  0.00      1.57     0.00        1     0.00     1.56  displayLevels(Sandbox&)
+  0.00      1.57     0.00        1     0.00     0.00  __static_initialization_and_destruction_0(int, int)
+  0.00      1.57     0.00        1     0.00     0.00  Projection::getDistanceTopSandbox()
+  0.00      1.57     0.00        1     0.00     0.00  cv::Mat::Mat(cv::Mat&&)
+  0.00      1.57     0.00        1     0.00     0.00  Sandbox::getProjection()
+
+ %         the percentage of the total running time of the
+time       program used by this function.
+
+cumulative a running sum of the number of seconds accounted
+ seconds   for by this function and those listed above it.
+
+ self      the number of seconds accounted for by this
+seconds    function alone.  This is the major sort for this
+           listing.
+
+calls      the number of times this function was invoked, if
+           this function is profiled, else blank.
+
+ self      the average number of milliseconds spent in this
+ms/call    function per call, if this function is profiled,
+	   else blank.
+
+ total     the average number of milliseconds spent in this
+ms/call    function and its descendents per call, if this
+	   function is profiled, else blank.
+
+name       the name of the function.  This is the minor sort
+           for this listing. The index shows the location of
+	   the function in the gprof listing. If the index is
+	   in parenthesis it shows where it would appear in
+	   the gprof listing if it were to be printed.
+
+Copyright (C) 2012-2018 Free Software Foundation, Inc.
+
+Copying and distribution of this file, with or without modification,
+are permitted in any medium without royalty provided the copyright
+notice and this notice are preserved.
+
+		     Call graph (explanation follows)
+
+
+granularity: each sample hit covers 2 byte(s) for 0.64% of 1.57 seconds
+
+index % time    self  children    called     name
+                                                 <spontaneous>
+[1]     99.4    0.00    1.56                 main [1]
+                0.00    1.56       1/1           displayLevels(Sandbox&) [2]
+-----------------------------------------------
+                0.00    1.56       1/1           main [1]
+[2]     99.4    0.00    1.56       1         displayLevels(Sandbox&) [2]
+                0.09    1.45     141/141         colorizeDepth(cv::Mat, float, float) [3]
+                0.01    0.00     141/141         bool std::chrono::operator><long, std::ratio<1l, 1000l>, long, std::ratio<1l, 1000l> >(std::chrono::duration<long, std::ratio<1l, 1000l> > const&, std::chrono::duration<long, std::ratio<1l, 1000l> > const&) [12]
+                0.01    0.00     141/141         cv::Mat::Mat(cv::Mat const&) [14]
+                0.01    0.00       3/3           cv::Mat::Mat(cv::Size_<int>, int) [15]
+                0.00    0.00     705/705         cv::_OutputArray::_OutputArray(cv::Mat&) [36]
+                0.00    0.00     705/705         cv::_OutputArray::~_OutputArray() [37]
+                0.00    0.00     426/4659        cv::Mat::~Mat() [25]
+                0.00    0.00     423/2539        cv::_InputArray::~_InputArray() [30]
+                0.00    0.00     423/987         cv::MatExpr::~MatExpr() [35]
+                0.00    0.00     282/282         cv::_InputArray::_InputArray(cv::Mat const&) [43]
+                0.00    0.00     282/282         cv::Mat_<cv::Vec<unsigned char, 3> >::~Mat_() [45]
+                0.00    0.00     189/189         std::chrono::time_point<std::chrono::_V2::system_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >::time_since_epoch() const [48]
+                0.00    0.00     189/189         std::enable_if<std::chrono::__is_duration<std::chrono::duration<long, std::ratio<1l, 1000l> > >::value, std::chrono::duration<long, std::ratio<1l, 1000l> > >::type std::chrono::duration_cast<std::chrono::duration<long, std::ratio<1l, 1000l> >, long, std::ratio<1l, 1000000000l> >(std::chrono::duration<long, std::ratio<1l, 1000000000l> > const&) [50]
+                0.00    0.00     143/143         cv::String::String(char const*) [53]
+                0.00    0.00     143/143         cv::String::~String() [54]
+                0.00    0.00     142/142         cv::Mat_<float>::~Mat_() [55]
+                0.00    0.00     141/282         cv::MatExpr::operator cv::Mat() const [47]
+                0.00    0.00     141/423         cv::_InputArray::_InputArray(cv::MatExpr const&) [39]
+                0.00    0.00     141/141         cv::Mat_<cv::Vec<unsigned char, 3> >::Mat_(cv::Mat const&) [58]
+                0.00    0.00     141/141         std::chrono::duration<long, std::ratio<1l, 1000l> >::duration<int, void>(int const&) [61]
+                0.00    0.00     141/141         std::common_type<std::chrono::duration<long, std::ratio<1l, 1000l> >, std::chrono::duration<long, std::ratio<1l, 1000l> > >::type std::chrono::operator-<long, std::ratio<1l, 1000l>, long, std::ratio<1l, 1000l> >(std::chrono::duration<long, std::ratio<1l, 1000l> > const&, std::chrono::duration<long, std::ratio<1l, 1000l> > const&) [63]
+                0.00    0.00       3/3           cv::MatSize::operator()() const [64]
+                0.00    0.00       1/1           Sandbox::getProjection() [69]
+                0.00    0.00       1/1           Projection::getDistanceTopSandbox() [67]
+                0.00    0.00       1/1           cv::Mat::Mat(cv::Mat&&) [68]
+-----------------------------------------------
+                0.09    1.45     141/141         displayLevels(Sandbox&) [2]
+[3]     98.1    0.09    1.45     141         colorizeDepth(cv::Mat, float, float) [3]
+                0.43    0.20 29275971/29275971     floatToColor(float, float, float) [4]
+                0.27    0.00 29275971/29275971     float& cv::Mat::at<float>(int, int) [5]
+                0.22    0.00 87827913/87827913     cv::Vec<double, 4>::operator[](int) [6]
+                0.18    0.00 87827913/87827913     cv::Vec<unsigned char, 3>& cv::Mat::at<cv::Vec<unsigned char, 3> >(int, int) [8]
+                0.16    0.00 87827913/87827913     cv::Vec<unsigned char, 3>::operator[](int) [9]
+                0.00    0.00     141/141         cv::Scalar_<double>::Scalar_(double) [16]
+                0.00    0.00     564/987         cv::MatExpr::~MatExpr() [35]
+                0.00    0.00     564/2539        cv::_InputArray::~_InputArray() [30]
+                0.00    0.00     282/423         cv::_InputArray::_InputArray(cv::MatExpr const&) [39]
+                0.00    0.00     282/282         cv::_InputArray::_InputArray(double const&) [44]
+                0.00    0.00     141/282         cv::MatExpr::operator cv::Mat() const [47]
+                0.00    0.00     141/141         cv::Mat::Mat(int, int, int) [56]
+                0.00    0.00     141/4659        cv::Mat::~Mat() [25]
+-----------------------------------------------
+                0.43    0.20 29275971/29275971     colorizeDepth(cv::Mat, float, float) [3]
+[4]     40.1    0.43    0.20 29275971         floatToColor(float, float, float) [4]
+                0.05    0.15 29275971/29275971     cv::Scalar_<double>::Scalar_(double, double, double, double) [7]
+-----------------------------------------------
+                0.27    0.00 29275971/29275971     colorizeDepth(cv::Mat, float, float) [3]
+[5]     17.2    0.27    0.00 29275971         float& cv::Mat::at<float>(int, int) [5]
+-----------------------------------------------
+                0.22    0.00 87827913/87827913     colorizeDepth(cv::Mat, float, float) [3]
+[6]     13.7    0.22    0.00 87827913         cv::Vec<double, 4>::operator[](int) [6]
+-----------------------------------------------
+                0.05    0.15 29275971/29275971     floatToColor(float, float, float) [4]
+[7]     12.7    0.05    0.15 29275971         cv::Scalar_<double>::Scalar_(double, double, double, double) [7]
+                0.04    0.11 29275971/29276112     cv::Vec<double, 4>::Vec() [10]
+-----------------------------------------------
+                0.18    0.00 87827913/87827913     colorizeDepth(cv::Mat, float, float) [3]
+[8]     11.5    0.18    0.00 87827913         cv::Vec<unsigned char, 3>& cv::Mat::at<cv::Vec<unsigned char, 3> >(int, int) [8]
+-----------------------------------------------
+                0.16    0.00 87827913/87827913     colorizeDepth(cv::Mat, float, float) [3]
+[9]      9.9    0.16    0.00 87827913         cv::Vec<unsigned char, 3>::operator[](int) [9]
+-----------------------------------------------
+                0.00    0.00     141/29276112     cv::Scalar_<double>::Scalar_(double) [16]
+                0.04    0.11 29275971/29276112     cv::Scalar_<double>::Scalar_(double, double, double, double) [7]
+[10]     9.6    0.04    0.11 29276112         cv::Vec<double, 4>::Vec() [10]
+                0.11    0.00 29276817/29276817     cv::Matx<double, 4, 1>::Matx() [11]
+-----------------------------------------------
+                0.11    0.00 29276817/29276817     cv::Vec<double, 4>::Vec() [10]
+[11]     7.0    0.11    0.00 29276817         cv::Matx<double, 4, 1>::Matx() [11]
+-----------------------------------------------
+                0.01    0.00     141/141         displayLevels(Sandbox&) [2]
+[12]     0.6    0.01    0.00     141         bool std::chrono::operator><long, std::ratio<1l, 1000l>, long, std::ratio<1l, 1000l> >(std::chrono::duration<long, std::ratio<1l, 1000l> > const&, std::chrono::duration<long, std::ratio<1l, 1000l> > const&) [12]
+                0.00    0.00     141/141         bool std::chrono::operator< <long, std::ratio<1l, 1000l>, long, std::ratio<1l, 1000l> >(std::chrono::duration<long, std::ratio<1l, 1000l> > const&, std::chrono::duration<long, std::ratio<1l, 1000l> > const&) [62]
+-----------------------------------------------
+                                                 <spontaneous>
+[13]     0.6    0.01    0.00                 bool YAML::RegEx::IsValidSource<YAML::StreamCharSource>(YAML::StreamCharSource const&) const [13]
+-----------------------------------------------
+                0.01    0.00     141/141         displayLevels(Sandbox&) [2]
+[14]     0.3    0.01    0.00     141         cv::Mat::Mat(cv::Mat const&) [14]
+                0.00    0.00    2260/3110        cv::MatStep::operator[](int) const [28]
+                0.00    0.00    2260/3118        cv::MatStep::operator[](int) [27]
+                0.00    0.00    1130/1989        cv::MatSize::MatSize(int*) [31]
+                0.00    0.00    1130/1989        cv::MatStep::MatStep() [32]
+-----------------------------------------------
+                0.01    0.00       3/3           displayLevels(Sandbox&) [2]
+[15]     0.3    0.01    0.00       3         cv::Mat::Mat(cv::Size_<int>, int) [15]
+                0.00    0.00       3/1989        cv::MatSize::MatSize(int*) [31]
+                0.00    0.00       3/1989        cv::MatStep::MatStep() [32]
+                0.00    0.00       3/148         cv::Mat::create(int, int, int) [52]
+-----------------------------------------------
+                0.00    0.00     141/141         colorizeDepth(cv::Mat, float, float) [3]
+[16]     0.0    0.00    0.00     141         cv::Scalar_<double>::Scalar_(double) [16]
+                0.00    0.00     141/29276112     cv::Vec<double, 4>::Vec() [10]
+-----------------------------------------------
+                0.00    0.00       1/5660        cv::Mat::operator=(cv::Mat&&) [116]
+                0.00    0.00     425/5660        cv::Mat::operator=(cv::Mat const&) [57]
+                0.00    0.00    5234/5660        cv::Mat::~Mat() [25]
+[23]     0.0    0.00    0.00    5660         cv::Mat::release() [23]
+-----------------------------------------------
+                0.00    0.00       5/5484        void __gnu_cxx::new_allocator<YAML::Scanner::FLOW_MARKER>::construct<YAML::Scanner::FLOW_MARKER, YAML::Scanner::FLOW_MARKER const&>(YAML::Scanner::FLOW_MARKER*, YAML::Scanner::FLOW_MARKER const&) [759]
+                0.00    0.00       5/5484        void std::_Construct<std::pair<YAML::detail::node*, bool>, std::pair<YAML::detail::node*, bool> >(std::pair<YAML::detail::node*, bool>*, std::pair<YAML::detail::node*, bool>&&) [2783]
+                0.00    0.00      35/5484        void std::_Construct<std::unique_ptr<YAML::Scanner::IndentMarker, std::default_delete<YAML::Scanner::IndentMarker> >, std::unique_ptr<YAML::Scanner::IndentMarker, std::default_delete<YAML::Scanner::IndentMarker> > >(std::unique_ptr<YAML::Scanner::IndentMarker, std::default_delete<YAML::Scanner::IndentMarker> >*, std::unique_ptr<YAML::Scanner::IndentMarker, std::default_delete<YAML::Scanner::IndentMarker> >&&) [2781]
+                0.00    0.00      40/5484        void __gnu_cxx::new_allocator<std::unique_ptr<YAML::Scanner::IndentMarker, std::default_delete<YAML::Scanner::IndentMarker> > >::construct<std::unique_ptr<YAML::Scanner::IndentMarker, std::default_delete<YAML::Scanner::IndentMarker> >, std::unique_ptr<YAML::Scanner::IndentMarker, std::default_delete<YAML::Scanner::IndentMarker> > >(std::unique_ptr<YAML::Scanner::IndentMarker, std::default_delete<YAML::Scanner::IndentMarker> >*, std::unique_ptr<YAML::Scanner::IndentMarker, std::default_delete<YAML::Scanner::IndentMarker> >&&) [836]
+                0.00    0.00      40/5484        void __gnu_cxx::new_allocator<YAML::Scanner::IndentMarker*>::construct<YAML::Scanner::IndentMarker*, YAML::Scanner::IndentMarker*>(YAML::Scanner::IndentMarker**, YAML::Scanner::IndentMarker*&&) [800]
+                0.00    0.00      40/5484        void __gnu_cxx::new_allocator<YAML::CollectionType::value>::construct<YAML::CollectionType::value, YAML::CollectionType::value const&>(YAML::CollectionType::value*, YAML::CollectionType::value const&) [727]
+                0.00    0.00      57/5484        void std::_Construct<YAML::RegEx, char const&>(YAML::RegEx*, char const&) [2776]
+                0.00    0.00      68/5484        void __gnu_cxx::new_allocator<YAML::RegEx>::construct<YAML::RegEx, YAML::RegEx const&>(YAML::RegEx*, YAML::RegEx const&) [745]
+                0.00    0.00     120/5484        void std::_Construct<std::pair<YAML::detail::node*, YAML::detail::node*>, std::pair<YAML::detail::node*, YAML::detail::node*> >(std::pair<YAML::detail::node*, YAML::detail::node*>*, std::pair<YAML::detail::node*, YAML::detail::node*>&&) [2782]
+                0.00    0.00     130/5484        void __gnu_cxx::new_allocator<std::pair<YAML::detail::node*, YAML::detail::node*> >::construct<std::pair<YAML::detail::node*, YAML::detail::node*>, YAML::detail::node*, YAML::detail::node*>(std::pair<YAML::detail::node*, YAML::detail::node*>*, YAML::detail::node*&&, YAML::detail::node*&&) [878]
+                0.00    0.00     130/5484        void __gnu_cxx::new_allocator<std::pair<YAML::detail::node*, bool> >::construct<std::pair<YAML::detail::node*, bool>, std::pair<YAML::detail::node*, bool> >(std::pair<YAML::detail::node*, bool>*, std::pair<YAML::detail::node*, bool>&&) [884]
+                0.00    0.00     160/5484        void __gnu_cxx::new_allocator<YAML::Scanner::SimpleKey>::construct<YAML::Scanner::SimpleKey, YAML::Scanner::SimpleKey const&>(YAML::Scanner::SimpleKey*, YAML::Scanner::SimpleKey const&) [765]
+                0.00    0.00     255/5484        void __gnu_cxx::new_allocator<YAML::Token>::construct<YAML::Token, YAML::Token const&>(YAML::Token*, YAML::Token const&) [752]
+                0.00    0.00     295/5484        void std::_Rb_tree<std::shared_ptr<YAML::detail::node>, std::shared_ptr<YAML::detail::node>, std::_Identity<std::shared_ptr<YAML::detail::node> >, std::less<std::shared_ptr<YAML::detail::node> >, std::allocator<std::shared_ptr<YAML::detail::node> > >::_M_construct_node<std::shared_ptr<YAML::detail::node> const&>(std::_Rb_tree_node<std::shared_ptr<YAML::detail::node> >*, std::shared_ptr<YAML::detail::node> const&) [2755]
+                0.00    0.00     295/5484        void __gnu_cxx::new_allocator<std::_Rb_tree_node<std::shared_ptr<YAML::detail::node> > >::construct<std::shared_ptr<YAML::detail::node>, std::shared_ptr<YAML::detail::node> const&>(std::shared_ptr<YAML::detail::node>*, std::shared_ptr<YAML::detail::node> const&) [848]
+                0.00    0.00     330/5484        void __gnu_cxx::new_allocator<YAML::detail::node*>::construct<YAML::detail::node*, YAML::detail::node*>(YAML::detail::node**, YAML::detail::node*&&) [790]
+                0.00    0.00     395/5484        void __gnu_cxx::new_allocator<YAML::Token>::construct<YAML::Token, YAML::Token>(YAML::Token*, YAML::Token&&) [753]
+                0.00    0.00     804/5484        void std::_Construct<YAML::RegEx, YAML::RegEx const&>(YAML::RegEx*, YAML::RegEx const&) [2775]
+                0.00    0.00    2280/5484        void __gnu_cxx::new_allocator<char>::construct<char, char>(char*, char&&) [890]
+[24]     0.0    0.00    0.00    5484         operator new(unsigned long, void*) [24]
+-----------------------------------------------
+                0.00    0.00     141/4659        colorizeDepth(cv::Mat, float, float) [3]
+                0.00    0.00     426/4659        displayLevels(Sandbox&) [2]
+                0.00    0.00     565/4659        cv::Mat_<float>::~Mat_() [55]
+                0.00    0.00     566/4659        cv::Mat_<cv::Vec<unsigned char, 3> >::~Mat_() [45]
+                0.00    0.00    2961/4659        cv::MatExpr::~MatExpr() [35]
+[25]     0.0    0.00    0.00    4659         cv::Mat::~Mat() [25]
+                0.00    0.00    5234/5660        cv::Mat::release() [23]
+-----------------------------------------------
+                0.00    0.00     423/3809        cv::_InputArray::_InputArray(cv::Mat const&) [43]
+                0.00    0.00     423/3809        cv::_InputArray::_InputArray(cv::MatExpr const&) [39]
+                0.00    0.00     423/3809        cv::_OutputArray::_OutputArray<cv::Vec<unsigned char, 3> >(cv::Mat_<cv::Vec<unsigned char, 3> >&) [115]
+                0.00    0.00     988/3809        cv::_OutputArray::_OutputArray(cv::Mat&) [36]
+                0.00    0.00    1552/3809        cv::_InputArray::_InputArray() [34]
+[26]     0.0    0.00    0.00    3809         cv::_InputArray::init(int, void const*) [26]
+-----------------------------------------------
+                0.00    0.00       4/3118        cv::Mat::Mat(cv::Mat&&) [68]
+                0.00    0.00       4/3118        cv::Mat::operator=(cv::Mat&&) [116]
+                0.00    0.00     850/3118        cv::Mat::operator=(cv::Mat const&) [57]
+                0.00    0.00    2260/3118        cv::Mat::Mat(cv::Mat const&) [14]
+[27]     0.0    0.00    0.00    3118         cv::MatStep::operator[](int) [27]
+-----------------------------------------------
+                0.00    0.00     850/3110        cv::Mat::operator=(cv::Mat const&) [57]
+                0.00    0.00    2260/3110        cv::Mat::Mat(cv::Mat const&) [14]
+[28]     0.0    0.00    0.00    3110         cv::MatStep::operator[](int) const [28]
+-----------------------------------------------
+                0.00    0.00     282/2680        cv::_InputArray::_InputArray(double const&) [44]
+                0.00    0.00     423/2680        cv::_InputArray::_InputArray(cv::Mat const&) [43]
+                0.00    0.00     423/2680        cv::_InputArray::_InputArray(cv::MatExpr const&) [39]
+                0.00    0.00    1552/2680        cv::_InputArray::_InputArray() [34]
+[29]     0.0    0.00    0.00    2680         cv::Size_<int>::Size_() [29]
+-----------------------------------------------
+                0.00    0.00     423/2539        displayLevels(Sandbox&) [2]
+                0.00    0.00     564/2539        colorizeDepth(cv::Mat, float, float) [3]
+                0.00    0.00    1552/2539        cv::_OutputArray::~_OutputArray() [37]
+[30]     0.0    0.00    0.00    2539         cv::_InputArray::~_InputArray() [30]
+-----------------------------------------------
+                0.00    0.00       1/1989        cv::Mat::Mat(cv::Mat&&) [68]
+                0.00    0.00       3/1989        cv::Mat::Mat(cv::Size_<int>, int) [15]
+                0.00    0.00     145/1989        cv::Mat::Mat(int, int, int) [56]
+                0.00    0.00     710/1989        cv::Mat::Mat() [40]
+                0.00    0.00    1130/1989        cv::Mat::Mat(cv::Mat const&) [14]
+[31]     0.0    0.00    0.00    1989         cv::MatSize::MatSize(int*) [31]
+-----------------------------------------------
+                0.00    0.00       1/1989        cv::Mat::Mat(cv::Mat&&) [68]
+                0.00    0.00       3/1989        cv::Mat::Mat(cv::Size_<int>, int) [15]
+                0.00    0.00     145/1989        cv::Mat::Mat(int, int, int) [56]
+                0.00    0.00     710/1989        cv::Mat::Mat() [40]
+                0.00    0.00    1130/1989        cv::Mat::Mat(cv::Mat const&) [14]
+[32]     0.0    0.00    0.00    1989         cv::MatStep::MatStep() [32]
+-----------------------------------------------
+                0.00    0.00     282/1693        cv::_InputArray::_InputArray(double const&) [44]
+                0.00    0.00    1411/1693        cv::MatSize::operator()() const [64]
+[33]     0.0    0.00    0.00    1693         cv::Size_<int>::Size_(int, int) [33]
+-----------------------------------------------
+                0.00    0.00     423/1411        cv::_OutputArray::_OutputArray<cv::Vec<unsigned char, 3> >(cv::Mat_<cv::Vec<unsigned char, 3> >&) [115]
+                0.00    0.00     988/1411        cv::_OutputArray::_OutputArray(cv::Mat&) [36]
+[34]     0.0    0.00    0.00    1411         cv::_InputArray::_InputArray() [34]
+                0.00    0.00    1552/2680        cv::Size_<int>::Size_() [29]
+                0.00    0.00    1552/3809        cv::_InputArray::init(int, void const*) [26]
+-----------------------------------------------
+                0.00    0.00     423/987         displayLevels(Sandbox&) [2]
+                0.00    0.00     564/987         colorizeDepth(cv::Mat, float, float) [3]
+[35]     0.0    0.00    0.00     987         cv::MatExpr::~MatExpr() [35]
+                0.00    0.00    2961/4659        cv::Mat::~Mat() [25]
+-----------------------------------------------
+                0.00    0.00     705/705         displayLevels(Sandbox&) [2]
+[36]     0.0    0.00    0.00     705         cv::_OutputArray::_OutputArray(cv::Mat&) [36]
+                0.00    0.00     988/1411        cv::_InputArray::_InputArray() [34]
+                0.00    0.00     988/3809        cv::_InputArray::init(int, void const*) [26]
+-----------------------------------------------
+                0.00    0.00     705/705         displayLevels(Sandbox&) [2]
+[37]     0.0    0.00    0.00     705         cv::_OutputArray::~_OutputArray() [37]
+                0.00    0.00    1552/2539        cv::_InputArray::~_InputArray() [30]
+-----------------------------------------------
+                0.00    0.00     282/564         std::common_type<std::chrono::duration<long, std::ratio<1l, 1000l> >, std::chrono::duration<long, std::ratio<1l, 1000l> > >::type std::chrono::operator-<long, std::ratio<1l, 1000l>, long, std::ratio<1l, 1000l> >(std::chrono::duration<long, std::ratio<1l, 1000l> > const&, std::chrono::duration<long, std::ratio<1l, 1000l> > const&) [63]
+                0.00    0.00     282/564         bool std::chrono::operator< <long, std::ratio<1l, 1000l>, long, std::ratio<1l, 1000l> >(std::chrono::duration<long, std::ratio<1l, 1000l> > const&, std::chrono::duration<long, std::ratio<1l, 1000l> > const&) [62]
+[38]     0.0    0.00    0.00     564         std::chrono::duration<long, std::ratio<1l, 1000l> >::count() const [38]
+-----------------------------------------------
+                0.00    0.00     141/423         displayLevels(Sandbox&) [2]
+                0.00    0.00     282/423         colorizeDepth(cv::Mat, float, float) [3]
+[39]     0.0    0.00    0.00     423         cv::_InputArray::_InputArray(cv::MatExpr const&) [39]
+                0.00    0.00     423/2680        cv::Size_<int>::Size_() [29]
+                0.00    0.00     423/3809        cv::_InputArray::init(int, void const*) [26]
+-----------------------------------------------
+                0.00    0.00     141/423         cv::Mat_<cv::Vec<unsigned char, 3> >::Mat_(cv::Mat const&) [58]
+                0.00    0.00     282/423         cv::MatExpr::operator cv::Mat() const [47]
+[40]     0.0    0.00    0.00     423         cv::Mat::Mat() [40]
+                0.00    0.00     710/1989        cv::MatSize::MatSize(int*) [31]
+                0.00    0.00     710/1989        cv::MatStep::MatStep() [32]
+-----------------------------------------------
+                0.00    0.00     141/330         std::common_type<std::chrono::duration<long, std::ratio<1l, 1000l> >, std::chrono::duration<long, std::ratio<1l, 1000l> > >::type std::chrono::operator-<long, std::ratio<1l, 1000l>, long, std::ratio<1l, 1000l> >(std::chrono::duration<long, std::ratio<1l, 1000l> > const&, std::chrono::duration<long, std::ratio<1l, 1000l> > const&) [63]
+                0.00    0.00     189/330         std::chrono::duration<long, std::ratio<1l, 1000l> > std::chrono::__duration_cast_impl<std::chrono::duration<long, std::ratio<1l, 1000l> >, std::ratio<1l, 1000000l>, long, true, false>::__cast<long, std::ratio<1l, 1000000000l> >(std::chrono::duration<long, std::ratio<1l, 1000000000l> > const&) [51]
+[41]     0.0    0.00    0.00     330         std::chrono::duration<long, std::ratio<1l, 1000l> >::duration<long, void>(long const&) [41]
+-----------------------------------------------
+                0.00    0.00     282/282         cv::_InputArray::_InputArray(double const&) [44]
+[42]     0.0    0.00    0.00     282         cv::_InputArray::init(int, void const*, cv::Size_<int>) [42]
+                0.00    0.00     282/282         cv::Size_<int>::operator=(cv::Size_<int> const&) [46]
+-----------------------------------------------
+                0.00    0.00     282/282         displayLevels(Sandbox&) [2]
+[43]     0.0    0.00    0.00     282         cv::_InputArray::_InputArray(cv::Mat const&) [43]
+                0.00    0.00     423/2680        cv::Size_<int>::Size_() [29]
+                0.00    0.00     423/3809        cv::_InputArray::init(int, void const*) [26]
+-----------------------------------------------
+                0.00    0.00     282/282         colorizeDepth(cv::Mat, float, float) [3]
+[44]     0.0    0.00    0.00     282         cv::_InputArray::_InputArray(double const&) [44]
+                0.00    0.00     282/2680        cv::Size_<int>::Size_() [29]
+                0.00    0.00     282/1693        cv::Size_<int>::Size_(int, int) [33]
+                0.00    0.00     282/282         cv::_InputArray::init(int, void const*, cv::Size_<int>) [42]
+-----------------------------------------------
+                0.00    0.00     282/282         displayLevels(Sandbox&) [2]
+[45]     0.0    0.00    0.00     282         cv::Mat_<cv::Vec<unsigned char, 3> >::~Mat_() [45]
+                0.00    0.00     566/4659        cv::Mat::~Mat() [25]
+-----------------------------------------------
+                0.00    0.00     282/282         cv::_InputArray::init(int, void const*, cv::Size_<int>) [42]
+[46]     0.0    0.00    0.00     282         cv::Size_<int>::operator=(cv::Size_<int> const&) [46]
+-----------------------------------------------
+                0.00    0.00     141/282         displayLevels(Sandbox&) [2]
+                0.00    0.00     141/282         colorizeDepth(cv::Mat, float, float) [3]
+[47]     0.0    0.00    0.00     282         cv::MatExpr::operator cv::Mat() const [47]
+                0.00    0.00     282/423         cv::Mat::Mat() [40]
+-----------------------------------------------
+                0.00    0.00     189/189         displayLevels(Sandbox&) [2]
+[48]     0.0    0.00    0.00     189         std::chrono::time_point<std::chrono::_V2::system_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >::time_since_epoch() const [48]
+-----------------------------------------------
+                0.00    0.00     189/189         std::chrono::duration<long, std::ratio<1l, 1000l> > std::chrono::__duration_cast_impl<std::chrono::duration<long, std::ratio<1l, 1000l> >, std::ratio<1l, 1000000l>, long, true, false>::__cast<long, std::ratio<1l, 1000000000l> >(std::chrono::duration<long, std::ratio<1l, 1000000000l> > const&) [51]
+[49]     0.0    0.00    0.00     189         std::chrono::duration<long, std::ratio<1l, 1000000000l> >::count() const [49]
+-----------------------------------------------
+                0.00    0.00     189/189         displayLevels(Sandbox&) [2]
+[50]     0.0    0.00    0.00     189         std::enable_if<std::chrono::__is_duration<std::chrono::duration<long, std::ratio<1l, 1000l> > >::value, std::chrono::duration<long, std::ratio<1l, 1000l> > >::type std::chrono::duration_cast<std::chrono::duration<long, std::ratio<1l, 1000l> >, long, std::ratio<1l, 1000000000l> >(std::chrono::duration<long, std::ratio<1l, 1000000000l> > const&) [50]
+                0.00    0.00     189/189         std::chrono::duration<long, std::ratio<1l, 1000l> > std::chrono::__duration_cast_impl<std::chrono::duration<long, std::ratio<1l, 1000l> >, std::ratio<1l, 1000000l>, long, true, false>::__cast<long, std::ratio<1l, 1000000000l> >(std::chrono::duration<long, std::ratio<1l, 1000000000l> > const&) [51]
+-----------------------------------------------
+                0.00    0.00     189/189         std::enable_if<std::chrono::__is_duration<std::chrono::duration<long, std::ratio<1l, 1000l> > >::value, std::chrono::duration<long, std::ratio<1l, 1000l> > >::type std::chrono::duration_cast<std::chrono::duration<long, std::ratio<1l, 1000l> >, long, std::ratio<1l, 1000000000l> >(std::chrono::duration<long, std::ratio<1l, 1000000000l> > const&) [50]
+[51]     0.0    0.00    0.00     189         std::chrono::duration<long, std::ratio<1l, 1000l> > std::chrono::__duration_cast_impl<std::chrono::duration<long, std::ratio<1l, 1000l> >, std::ratio<1l, 1000000l>, long, true, false>::__cast<long, std::ratio<1l, 1000000000l> >(std::chrono::duration<long, std::ratio<1l, 1000000000l> > const&) [51]
+                0.00    0.00     189/189         std::chrono::duration<long, std::ratio<1l, 1000000000l> >::count() const [49]
+                0.00    0.00     189/330         std::chrono::duration<long, std::ratio<1l, 1000l> >::duration<long, void>(long const&) [41]
+-----------------------------------------------
+                0.00    0.00       3/148         cv::Mat::Mat(cv::Size_<int>, int) [15]
+                0.00    0.00     145/148         cv::Mat::Mat(int, int, int) [56]
+[52]     0.0    0.00    0.00     148         cv::Mat::create(int, int, int) [52]
+-----------------------------------------------
+                0.00    0.00     143/143         displayLevels(Sandbox&) [2]
+[53]     0.0    0.00    0.00     143         cv::String::String(char const*) [53]
+-----------------------------------------------
+                0.00    0.00     143/143         displayLevels(Sandbox&) [2]
+[54]     0.0    0.00    0.00     143         cv::String::~String() [54]
+-----------------------------------------------
+                0.00    0.00     142/142         displayLevels(Sandbox&) [2]
+[55]     0.0    0.00    0.00     142         cv::Mat_<float>::~Mat_() [55]
+                0.00    0.00     565/4659        cv::Mat::~Mat() [25]
+-----------------------------------------------
+                0.00    0.00     141/141         colorizeDepth(cv::Mat, float, float) [3]
+[56]     0.0    0.00    0.00     141         cv::Mat::Mat(int, int, int) [56]
+                0.00    0.00     145/1989        cv::MatSize::MatSize(int*) [31]
+                0.00    0.00     145/1989        cv::MatStep::MatStep() [32]
+                0.00    0.00     145/148         cv::Mat::create(int, int, int) [52]
+-----------------------------------------------
+                0.00    0.00     141/141         cv::Mat_<cv::Vec<unsigned char, 3> >::operator=(cv::Mat const&) [59]
+[57]     0.0    0.00    0.00     141         cv::Mat::operator=(cv::Mat const&) [57]
+                0.00    0.00     850/3110        cv::MatStep::operator[](int) const [28]
+                0.00    0.00     850/3118        cv::MatStep::operator[](int) [27]
+                0.00    0.00     425/5660        cv::Mat::release() [23]
+-----------------------------------------------
+                0.00    0.00     141/141         displayLevels(Sandbox&) [2]
+[58]     0.0    0.00    0.00     141         cv::Mat_<cv::Vec<unsigned char, 3> >::Mat_(cv::Mat const&) [58]
+                0.00    0.00     141/423         cv::Mat::Mat() [40]
+                0.00    0.00     141/141         cv::Mat_<cv::Vec<unsigned char, 3> >::operator=(cv::Mat const&) [59]
+-----------------------------------------------
+                0.00    0.00     141/141         cv::Mat_<cv::Vec<unsigned char, 3> >::Mat_(cv::Mat const&) [58]
+[59]     0.0    0.00    0.00     141         cv::Mat_<cv::Vec<unsigned char, 3> >::operator=(cv::Mat const&) [59]
+                0.00    0.00     141/141         cv::Mat::type() const [60]
+                0.00    0.00     141/141         cv::Mat::operator=(cv::Mat const&) [57]
+-----------------------------------------------
+                0.00    0.00     141/141         cv::Mat_<cv::Vec<unsigned char, 3> >::operator=(cv::Mat const&) [59]
+[60]     0.0    0.00    0.00     141         cv::Mat::type() const [60]
+-----------------------------------------------
+                0.00    0.00     141/141         displayLevels(Sandbox&) [2]
+[61]     0.0    0.00    0.00     141         std::chrono::duration<long, std::ratio<1l, 1000l> >::duration<int, void>(int const&) [61]
+-----------------------------------------------
+                0.00    0.00     141/141         bool std::chrono::operator><long, std::ratio<1l, 1000l>, long, std::ratio<1l, 1000l> >(std::chrono::duration<long, std::ratio<1l, 1000l> > const&, std::chrono::duration<long, std::ratio<1l, 1000l> > const&) [12]
+[62]     0.0    0.00    0.00     141         bool std::chrono::operator< <long, std::ratio<1l, 1000l>, long, std::ratio<1l, 1000l> >(std::chrono::duration<long, std::ratio<1l, 1000l> > const&, std::chrono::duration<long, std::ratio<1l, 1000l> > const&) [62]
+                0.00    0.00     282/564         std::chrono::duration<long, std::ratio<1l, 1000l> >::count() const [38]
+-----------------------------------------------
+                0.00    0.00     141/141         displayLevels(Sandbox&) [2]
+[63]     0.0    0.00    0.00     141         std::common_type<std::chrono::duration<long, std::ratio<1l, 1000l> >, std::chrono::duration<long, std::ratio<1l, 1000l> > >::type std::chrono::operator-<long, std::ratio<1l, 1000l>, long, std::ratio<1l, 1000l> >(std::chrono::duration<long, std::ratio<1l, 1000l> > const&, std::chrono::duration<long, std::ratio<1l, 1000l> > const&) [63]
+                0.00    0.00     282/564         std::chrono::duration<long, std::ratio<1l, 1000l> >::count() const [38]
+                0.00    0.00     141/330         std::chrono::duration<long, std::ratio<1l, 1000l> >::duration<long, void>(long const&) [41]
+-----------------------------------------------
+                0.00    0.00       3/3           displayLevels(Sandbox&) [2]
+[64]     0.0    0.00    0.00       3         cv::MatSize::operator()() const [64]
+                0.00    0.00    1411/1693        cv::Size_<int>::Size_(int, int) [33]
+-----------------------------------------------
+                0.00    0.00       1/1           __libc_csu_init [3169]
+[65]     0.0    0.00    0.00       1         _GLOBAL__sub_I_main [65]
+                0.00    0.00       1/1           __static_initialization_and_destruction_0(int, int) [66]
+-----------------------------------------------
+                0.00    0.00       1/1           _GLOBAL__sub_I_main [65]
+[66]     0.0    0.00    0.00       1         __static_initialization_and_destruction_0(int, int) [66]
+-----------------------------------------------
+                0.00    0.00       1/1           displayLevels(Sandbox&) [2]
+[67]     0.0    0.00    0.00       1         Projection::getDistanceTopSandbox() [67]
+-----------------------------------------------
+                0.00    0.00       1/1           displayLevels(Sandbox&) [2]
+[68]     0.0    0.00    0.00       1         cv::Mat::Mat(cv::Mat&&) [68]
+                0.00    0.00       4/3118        cv::MatStep::operator[](int) [27]
+                0.00    0.00       1/1989        cv::MatSize::MatSize(int*) [31]
+                0.00    0.00       1/1989        cv::MatStep::MatStep() [32]
+-----------------------------------------------
+                0.00    0.00       1/1           displayLevels(Sandbox&) [2]
+[69]     0.0    0.00    0.00       1         Sandbox::getProjection() [69]
+-----------------------------------------------
+
+ This table describes the call tree of the program, and was sorted by
+ the total amount of time spent in each function and its children.
+
+ Each entry in this table consists of several lines.  The line with the
+ index number at the left hand margin lists the current function.
+ The lines above it list the functions that called this function,
+ and the lines below it list the functions this one called.
+ This line lists:
+     index	A unique number given to each element of the table.
+		Index numbers are sorted numerically.
+		The index number is printed next to every function name so
+		it is easier to look up where the function is in the table.
+
+     % time	This is the percentage of the `total' time that was spent
+		in this function and its children.  Note that due to
+		different viewpoints, functions excluded by options, etc,
+		these numbers will NOT add up to 100%.
+
+     self	This is the total amount of time spent in this function.
+
+     children	This is the total amount of time propagated into this
+		function by its children.
+
+     called	This is the number of times the function was called.
+		If the function called itself recursively, the number
+		only includes non-recursive calls, and is followed by
+		a `+' and the number of recursive calls.
+
+     name	The name of the current function.  The index number is
+		printed after it.  If the function is a member of a
+		cycle, the cycle number is printed between the
+		function's name and the index number.
+
+
+ For the function's parents, the fields have the following meanings:
+
+     self	This is the amount of time that was propagated directly
+		from the function into this parent.
+
+     children	This is the amount of time that was propagated from
+		the function's children into this parent.
+
+     called	This is the number of times this parent called the
+		function `/' the total number of times the function
+		was called.  Recursive calls to the function are not
+		included in the number after the `/'.
+
+     name	This is the name of the parent.  The parent's index
+		number is printed after it.  If the parent is a
+		member of a cycle, the cycle number is printed between
+		the name and the index number.
+
+ If the parents of the function cannot be determined, the word
+ `<spontaneous>' is printed in the `name' field, and all the other
+ fields are blank.
+
+ For the function's children, the fields have the following meanings:
+
+     self	This is the amount of time that was propagated directly
+		from the child into the function.
+
+     children	This is the amount of time that was propagated from the
+		child's children to the function.
+
+     called	This is the number of times the function called
+		this child `/' the total number of times the child
+		was called.  Recursive calls by the child are not
+		listed in the number after the `/'.
+
+     name	This is the name of the child.  The child's index
+		number is printed after it.  If the child is a
+		member of a cycle, the cycle number is printed
+		between the name and the index number.
+
+ If there are any cycles (circles) in the call graph, there is an
+ entry for the cycle-as-a-whole.  This entry shows who called the
+ cycle (as parents) and the members of the cycle (as children.)
+ The `+' recursive calls entry shows the number of function calls that
+ were internal to the cycle, and the calls entry for each member shows,
+ for that member, how many times it was called from other members of
+ the cycle.
+
+Copyright (C) 2012-2018 Free Software Foundation, Inc.
+
+Copying and distribution of this file, with or without modification,
+are permitted in any medium without royalty provided the copyright
+notice and this notice are preserved.
+
+Index by function name
+
+  [65] _GLOBAL__sub_I_main (display_levels.cpp) [15] cv::Mat::Mat(cv::Size_<int>, int) [27] cv::MatStep::operator[](int)
+   [4] floatToColor(float, float, float) [68] cv::Mat::Mat(cv::Mat&&) [7] cv::Scalar_<double>::Scalar_(double, double, double, double)
+   [3] colorizeDepth(cv::Mat, float, float) [56] cv::Mat::Mat(int, int, int) [16] cv::Scalar_<double>::Scalar_(double)
+   [2] displayLevels(Sandbox&) [25] cv::Mat::~Mat()       [69] Sandbox::getProjection()
+  [66] __static_initialization_and_destruction_0(int, int) (display_levels.cpp) [57] cv::Mat::operator=(cv::Mat const&) [60] cv::Mat::type() const
+  [67] Projection::getDistanceTopSandbox() [10] cv::Vec<double, 4>::Vec() [47] cv::MatExpr::operator cv::Mat() const
+  [26] cv::_InputArray::init(int, void const*) [6] cv::Vec<double, 4>::operator[](int) [64] cv::MatSize::operator()() const
+  [42] cv::_InputArray::init(int, void const*, cv::Size_<int>) [9] cv::Vec<unsigned char, 3>::operator[](int) [28] cv::MatStep::operator[](int) const
+  [43] cv::_InputArray::_InputArray(cv::Mat const&) [58] cv::Mat_<cv::Vec<unsigned char, 3> >::Mat_(cv::Mat const&) [13] bool YAML::RegEx::IsValidSource<YAML::StreamCharSource>(YAML::StreamCharSource const&) const
+  [39] cv::_InputArray::_InputArray(cv::MatExpr const&) [45] cv::Mat_<cv::Vec<unsigned char, 3> >::~Mat_() [48] std::chrono::time_point<std::chrono::_V2::system_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >::time_since_epoch() const
+  [44] cv::_InputArray::_InputArray(double const&) [59] cv::Mat_<cv::Vec<unsigned char, 3> >::operator=(cv::Mat const&) [49] std::chrono::duration<long, std::ratio<1l, 1000000000l> >::count() const
+  [34] cv::_InputArray::_InputArray() [55] cv::Mat_<float>::~Mat_() [38] std::chrono::duration<long, std::ratio<1l, 1000l> >::count() const
+  [30] cv::_InputArray::~_InputArray() [11] cv::Matx<double, 4, 1>::Matx() [50] std::enable_if<std::chrono::__is_duration<std::chrono::duration<long, std::ratio<1l, 1000l> > >::value, std::chrono::duration<long, std::ratio<1l, 1000l> > >::type std::chrono::duration_cast<std::chrono::duration<long, std::ratio<1l, 1000l> >, long, std::ratio<1l, 1000000000l> >(std::chrono::duration<long, std::ratio<1l, 1000000000l> > const&)
+  [36] cv::_OutputArray::_OutputArray(cv::Mat&) [33] cv::Size_<int>::Size_(int, int) [51] std::chrono::duration<long, std::ratio<1l, 1000l> > std::chrono::__duration_cast_impl<std::chrono::duration<long, std::ratio<1l, 1000l> >, std::ratio<1l, 1000000l>, long, true, false>::__cast<long, std::ratio<1l, 1000000000l> >(std::chrono::duration<long, std::ratio<1l, 1000000000l> > const&)
+  [37] cv::_OutputArray::~_OutputArray() [29] cv::Size_<int>::Size_() [61] std::chrono::duration<long, std::ratio<1l, 1000l> >::duration<int, void>(int const&)
+   [8] cv::Vec<unsigned char, 3>& cv::Mat::at<cv::Vec<unsigned char, 3> >(int, int) [46] cv::Size_<int>::operator=(cv::Size_<int> const&) [41] std::chrono::duration<long, std::ratio<1l, 1000l> >::duration<long, void>(long const&)
+   [5] float& cv::Mat::at<float>(int, int) [53] cv::String::String(char const*) [12] bool std::chrono::operator><long, std::ratio<1l, 1000l>, long, std::ratio<1l, 1000l> >(std::chrono::duration<long, std::ratio<1l, 1000l> > const&, std::chrono::duration<long, std::ratio<1l, 1000l> > const&)
+  [52] cv::Mat::create(int, int, int) [54] cv::String::~String() [62] bool std::chrono::operator< <long, std::ratio<1l, 1000l>, long, std::ratio<1l, 1000l> >(std::chrono::duration<long, std::ratio<1l, 1000l> > const&, std::chrono::duration<long, std::ratio<1l, 1000l> > const&)
+  [23] cv::Mat::release()     [35] cv::MatExpr::~MatExpr() [63] std::common_type<std::chrono::duration<long, std::ratio<1l, 1000l> >, std::chrono::duration<long, std::ratio<1l, 1000l> > >::type std::chrono::operator-<long, std::ratio<1l, 1000l>, long, std::ratio<1l, 1000l> >(std::chrono::duration<long, std::ratio<1l, 1000l> > const&, std::chrono::duration<long, std::ratio<1l, 1000l> > const&)
+  [14] cv::Mat::Mat(cv::Mat const&) [31] cv::MatSize::MatSize(int*) [24] operator new(unsigned long, void*)
+  [40] cv::Mat::Mat()         [32] cv::MatStep::MatStep()
diff --git a/apps/display_levels/gprof/gprof.output b/apps/display_levels/gprof/gprof.output
index 47d07280fa888af10afb59985b82cf6b64a792a5..88af9ed9a547b5284312d65a2fdc53fc6ac3ac8c 100644
--- a/apps/display_levels/gprof/gprof.output
+++ b/apps/display_levels/gprof/gprof.output
@@ -2,20 +2,60 @@ Flat profile:
 
 Each sample counts as 0.01 seconds.
   %   cumulative   self              self     total           
- time   seconds   seconds    calls  Ts/call  Ts/call  name    
- 53.76      1.65     1.65                             cv::Vec<unsigned char, 3>& cv::Mat::at<cv::Vec<unsigned char, 3> >(int, int)
- 12.75      2.04     0.39                             floatToColor(float, float, float)
- 11.11      2.38     0.34                             float& cv::Mat::at<float>(int, int)
-  9.15      2.66     0.28                             colorizeDepth(cv::Mat, float, float)
-  4.90      2.81     0.15                             cv::Size_<int>::Size_(int, int)
-  2.94      2.90     0.09                             cv::Matx<double, 4, 1>::Matx()
-  1.47      2.94     0.05                             cv::Vec<double, 4>::operator[](int)
-  1.31      2.98     0.04                             cv::Scalar_<double>::Scalar_(double, double, double, double)
-  0.82      3.01     0.03                             cv::Vec<unsigned char, 3>::operator[](int)
-  0.65      3.03     0.02                             cv::Size_<int>::Size_()
-  0.49      3.04     0.02                             cv::Vec<double, 4>::Vec()
-  0.33      3.05     0.01                             cv::Mat::release()
-  0.33      3.06     0.01                             cv::Mat_<cv::Vec<unsigned char, 3> >::Mat_(cv::Mat const&)
+ time   seconds   seconds    calls   s/call   s/call  name    
+ 34.04      0.64     0.64 41526200     0.00     0.00  floatToColor(float, float, float)
+ 14.63      0.92     0.28 41526200     0.00     0.00  float& cv::Mat::at<float>(int, int)
+ 12.77      1.16     0.24 124578600     0.00     0.00  cv::Vec<unsigned char, 3>& cv::Mat::at<cv::Vec<unsigned char, 3> >(int, int)
+ 10.64      1.36     0.20      200     0.00     0.01  colorizeDepth(cv::Mat, float, float)
+  7.98      1.51     0.15 124578600     0.00     0.00  cv::Vec<double, 4>::operator[](int)
+  7.98      1.66     0.15 124578600     0.00     0.00  cv::Vec<unsigned char, 3>::operator[](int)
+  4.79      1.75     0.09 41527400     0.00     0.00  cv::Matx<double, 4, 1>::Matx()
+  2.66      1.80     0.05 41526200     0.00     0.00  cv::Scalar_<double>::Scalar_(double, double, double, double)
+  1.60      1.83     0.03      200     0.00     0.00  cv::Mat_<cv::Vec<unsigned char, 3> >::Mat_(cv::Mat const&)
+  1.06      1.85     0.02                             __gnu_cxx::__promote_2<float, int, __gnu_cxx::__promote<float, std::__is_integer<float>::__value>::__type, __gnu_cxx::__promote<int, std::__is_integer<int>::__value>::__type>::__type std::pow<float, int>(float, int)
+  0.80      1.86     0.02 41526400     0.00     0.00  cv::Vec<double, 4>::Vec()
+  0.53      1.87     0.01      200     0.00     0.00  cv::Mat_<cv::Vec<unsigned char, 3> >::operator=(cv::Mat const&)
+  0.53      1.88     0.01                             std::vector<YAML::RegEx, std::allocator<YAML::RegEx> >::begin() const
+  0.00      1.88     0.00     8020     0.00     0.00  cv::Mat::release()
+  0.00      1.88     0.00     6606     0.00     0.00  cv::Mat::~Mat()
+  0.00      1.88     0.00     5484     0.00     0.00  operator new(unsigned long, void*)
+  0.00      1.88     0.00     5402     0.00     0.00  cv::_InputArray::init(int, void const*)
+  0.00      1.88     0.00     4416     0.00     0.00  cv::MatStep::operator[](int)
+  0.00      1.88     0.00     4408     0.00     0.00  cv::MatStep::operator[](int) const
+  0.00      1.88     0.00     3801     0.00     0.00  cv::Size_<int>::Size_()
+  0.00      1.88     0.00     3601     0.00     0.00  cv::_InputArray::~_InputArray()
+  0.00      1.88     0.00     2815     0.00     0.00  cv::MatSize::MatSize(int*)
+  0.00      1.88     0.00     2815     0.00     0.00  cv::MatStep::MatStep()
+  0.00      1.88     0.00     2401     0.00     0.00  cv::Size_<int>::Size_(int, int)
+  0.00      1.88     0.00     2001     0.00     0.00  cv::_InputArray::_InputArray()
+  0.00      1.88     0.00     1400     0.00     0.00  cv::MatExpr::~MatExpr()
+  0.00      1.88     0.00     1000     0.00     0.00  cv::_OutputArray::_OutputArray(cv::Mat&)
+  0.00      1.88     0.00     1000     0.00     0.00  cv::_OutputArray::~_OutputArray()
+  0.00      1.88     0.00      600     0.00     0.00  cv::_InputArray::_InputArray(cv::MatExpr const&)
+  0.00      1.88     0.00      600     0.00     0.00  cv::Mat::Mat()
+  0.00      1.88     0.00      400     0.00     0.00  cv::_InputArray::init(int, void const*, cv::Size_<int>)
+  0.00      1.88     0.00      400     0.00     0.00  cv::_InputArray::_InputArray(cv::Mat const&)
+  0.00      1.88     0.00      400     0.00     0.00  cv::_InputArray::_InputArray(double const&)
+  0.00      1.88     0.00      400     0.00     0.00  cv::Mat_<cv::Vec<unsigned char, 3> >::~Mat_()
+  0.00      1.88     0.00      400     0.00     0.00  cv::Size_<int>::operator=(cv::Size_<int> const&)
+  0.00      1.88     0.00      400     0.00     0.00  cv::MatExpr::operator cv::Mat() const
+  0.00      1.88     0.00      207     0.00     0.00  cv::Mat::create(int, int, int)
+  0.00      1.88     0.00      202     0.00     0.00  cv::String::String(char const*)
+  0.00      1.88     0.00      202     0.00     0.00  cv::String::~String()
+  0.00      1.88     0.00      201     0.00     0.00  cv::Mat_<float>::~Mat_()
+  0.00      1.88     0.00      200     0.00     0.00  cv::Mat::Mat(cv::Mat const&)
+  0.00      1.88     0.00      200     0.00     0.00  cv::Mat::Mat(int, int, int)
+  0.00      1.88     0.00      200     0.00     0.00  cv::Mat::operator=(cv::Mat const&)
+  0.00      1.88     0.00      200     0.00     0.00  cv::Scalar_<double>::Scalar_(double)
+  0.00      1.88     0.00      200     0.00     0.00  cv::Mat::type() const
+  0.00      1.88     0.00        3     0.00     0.00  cv::Mat::Mat(cv::Size_<int>, int)
+  0.00      1.88     0.00        3     0.00     0.00  cv::MatSize::operator()() const
+  0.00      1.88     0.00        1     0.00     0.00  _GLOBAL__sub_I_main
+  0.00      1.88     0.00        1     0.00     1.85  displayLevels(Sandbox&)
+  0.00      1.88     0.00        1     0.00     0.00  __static_initialization_and_destruction_0(int, int)
+  0.00      1.88     0.00        1     0.00     0.00  Projection::getDistanceTopSandbox()
+  0.00      1.88     0.00        1     0.00     0.00  cv::Mat::Mat(cv::Mat&&)
+  0.00      1.88     0.00        1     0.00     0.00  Sandbox::getProjection()
 
  %         the percentage of the total running time of the
 time       program used by this function.
@@ -49,3 +89,414 @@ Copyright (C) 2012-2018 Free Software Foundation, Inc.
 Copying and distribution of this file, with or without modification,
 are permitted in any medium without royalty provided the copyright
 notice and this notice are preserved.
+
+		     Call graph (explanation follows)
+
+
+granularity: each sample hit covers 2 byte(s) for 0.53% of 1.88 seconds
+
+index % time    self  children    called     name
+                                                 <spontaneous>
+[1]     98.4    0.00    1.85                 main [1]
+                0.00    1.85       1/1           displayLevels(Sandbox&) [2]
+-----------------------------------------------
+                0.00    1.85       1/1           main [1]
+[2]     98.4    0.00    1.85       1         displayLevels(Sandbox&) [2]
+                0.20    1.61     200/200         colorizeDepth(cv::Mat, float, float) [3]
+                0.03    0.01     200/200         cv::Mat_<cv::Vec<unsigned char, 3> >::Mat_(cv::Mat const&) [12]
+                0.00    0.00    1000/1000        cv::_OutputArray::_OutputArray(cv::Mat&) [36]
+                0.00    0.00    1000/1000        cv::_OutputArray::~_OutputArray() [37]
+                0.00    0.00     603/6606        cv::Mat::~Mat() [24]
+                0.00    0.00     600/3601        cv::_InputArray::~_InputArray() [30]
+                0.00    0.00     600/1400        cv::MatExpr::~MatExpr() [35]
+                0.00    0.00     400/400         cv::_InputArray::_InputArray(cv::Mat const&) [41]
+                0.00    0.00     400/400         cv::Mat_<cv::Vec<unsigned char, 3> >::~Mat_() [43]
+                0.00    0.00     202/202         cv::String::String(char const*) [47]
+                0.00    0.00     202/202         cv::String::~String() [48]
+                0.00    0.00     201/201         cv::Mat_<float>::~Mat_() [49]
+                0.00    0.00     200/400         cv::MatExpr::operator cv::Mat() const [45]
+                0.00    0.00     200/600         cv::_InputArray::_InputArray(cv::MatExpr const&) [38]
+                0.00    0.00     200/200         cv::Mat::Mat(cv::Mat const&) [50]
+                0.00    0.00       3/3           cv::MatSize::operator()() const [55]
+                0.00    0.00       3/3           cv::Mat::Mat(cv::Size_<int>, int) [54]
+                0.00    0.00       1/1           Sandbox::getProjection() [60]
+                0.00    0.00       1/1           Projection::getDistanceTopSandbox() [58]
+                0.00    0.00       1/1           cv::Mat::Mat(cv::Mat&&) [59]
+-----------------------------------------------
+                0.20    1.61     200/200         displayLevels(Sandbox&) [2]
+[3]     96.3    0.20    1.61     200         colorizeDepth(cv::Mat, float, float) [3]
+                0.64    0.16 41526200/41526200     floatToColor(float, float, float) [4]
+                0.28    0.00 41526200/41526200     float& cv::Mat::at<float>(int, int) [5]
+                0.24    0.00 124578600/124578600     cv::Vec<unsigned char, 3>& cv::Mat::at<cv::Vec<unsigned char, 3> >(int, int) [6]
+                0.15    0.00 124578600/124578600     cv::Vec<double, 4>::operator[](int) [8]
+                0.15    0.00 124578600/124578600     cv::Vec<unsigned char, 3>::operator[](int) [9]
+                0.00    0.00     200/200         cv::Scalar_<double>::Scalar_(double) [16]
+                0.00    0.00     800/1400        cv::MatExpr::~MatExpr() [35]
+                0.00    0.00     800/3601        cv::_InputArray::~_InputArray() [30]
+                0.00    0.00     400/600         cv::_InputArray::_InputArray(cv::MatExpr const&) [38]
+                0.00    0.00     400/400         cv::_InputArray::_InputArray(double const&) [42]
+                0.00    0.00     200/400         cv::MatExpr::operator cv::Mat() const [45]
+                0.00    0.00     200/200         cv::Mat::Mat(int, int, int) [51]
+                0.00    0.00     200/6606        cv::Mat::~Mat() [24]
+-----------------------------------------------
+                0.64    0.16 41526200/41526200     colorizeDepth(cv::Mat, float, float) [3]
+[4]     42.3    0.64    0.16 41526200         floatToColor(float, float, float) [4]
+                0.05    0.11 41526200/41526200     cv::Scalar_<double>::Scalar_(double, double, double, double) [7]
+-----------------------------------------------
+                0.28    0.00 41526200/41526200     colorizeDepth(cv::Mat, float, float) [3]
+[5]     14.6    0.28    0.00 41526200         float& cv::Mat::at<float>(int, int) [5]
+-----------------------------------------------
+                0.24    0.00 124578600/124578600     colorizeDepth(cv::Mat, float, float) [3]
+[6]     12.8    0.24    0.00 124578600         cv::Vec<unsigned char, 3>& cv::Mat::at<cv::Vec<unsigned char, 3> >(int, int) [6]
+-----------------------------------------------
+                0.05    0.11 41526200/41526200     floatToColor(float, float, float) [4]
+[7]      8.2    0.05    0.11 41526200         cv::Scalar_<double>::Scalar_(double, double, double, double) [7]
+                0.02    0.09 41526200/41526400     cv::Vec<double, 4>::Vec() [10]
+-----------------------------------------------
+                0.15    0.00 124578600/124578600     colorizeDepth(cv::Mat, float, float) [3]
+[8]      8.0    0.15    0.00 124578600         cv::Vec<double, 4>::operator[](int) [8]
+-----------------------------------------------
+                0.15    0.00 124578600/124578600     colorizeDepth(cv::Mat, float, float) [3]
+[9]      8.0    0.15    0.00 124578600         cv::Vec<unsigned char, 3>::operator[](int) [9]
+-----------------------------------------------
+                0.00    0.00     200/41526400     cv::Scalar_<double>::Scalar_(double) [16]
+                0.02    0.09 41526200/41526400     cv::Scalar_<double>::Scalar_(double, double, double, double) [7]
+[10]     5.6    0.02    0.09 41526400         cv::Vec<double, 4>::Vec() [10]
+                0.09    0.00 41527400/41527400     cv::Matx<double, 4, 1>::Matx() [11]
+-----------------------------------------------
+                0.09    0.00 41527400/41527400     cv::Vec<double, 4>::Vec() [10]
+[11]     4.8    0.09    0.00 41527400         cv::Matx<double, 4, 1>::Matx() [11]
+-----------------------------------------------
+                0.03    0.01     200/200         displayLevels(Sandbox&) [2]
+[12]     2.1    0.03    0.01     200         cv::Mat_<cv::Vec<unsigned char, 3> >::Mat_(cv::Mat const&) [12]
+                0.01    0.00     200/200         cv::Mat_<cv::Vec<unsigned char, 3> >::operator=(cv::Mat const&) [14]
+                0.00    0.00     200/600         cv::Mat::Mat() [39]
+-----------------------------------------------
+                                                 <spontaneous>
+[13]     1.1    0.02    0.00                 __gnu_cxx::__promote_2<float, int, __gnu_cxx::__promote<float, std::__is_integer<float>::__value>::__type, __gnu_cxx::__promote<int, std::__is_integer<int>::__value>::__type>::__type std::pow<float, int>(float, int) [13]
+-----------------------------------------------
+                0.01    0.00     200/200         cv::Mat_<cv::Vec<unsigned char, 3> >::Mat_(cv::Mat const&) [12]
+[14]     0.5    0.01    0.00     200         cv::Mat_<cv::Vec<unsigned char, 3> >::operator=(cv::Mat const&) [14]
+                0.00    0.00     200/200         cv::Mat::type() const [53]
+                0.00    0.00     200/200         cv::Mat::operator=(cv::Mat const&) [52]
+-----------------------------------------------
+                                                 <spontaneous>
+[15]     0.5    0.01    0.00                 std::vector<YAML::RegEx, std::allocator<YAML::RegEx> >::begin() const [15]
+-----------------------------------------------
+                0.00    0.00     200/200         colorizeDepth(cv::Mat, float, float) [3]
+[16]     0.0    0.00    0.00     200         cv::Scalar_<double>::Scalar_(double) [16]
+                0.00    0.00     200/41526400     cv::Vec<double, 4>::Vec() [10]
+-----------------------------------------------
+                0.00    0.00       1/8020        cv::Mat::operator=(cv::Mat&&) [107]
+                0.00    0.00     602/8020        cv::Mat::operator=(cv::Mat const&) [52]
+                0.00    0.00    7417/8020        cv::Mat::~Mat() [24]
+[23]     0.0    0.00    0.00    8020         cv::Mat::release() [23]
+-----------------------------------------------
+                0.00    0.00     200/6606        colorizeDepth(cv::Mat, float, float) [3]
+                0.00    0.00     603/6606        displayLevels(Sandbox&) [2]
+                0.00    0.00     801/6606        cv::Mat_<float>::~Mat_() [49]
+                0.00    0.00     802/6606        cv::Mat_<cv::Vec<unsigned char, 3> >::~Mat_() [43]
+                0.00    0.00    4200/6606        cv::MatExpr::~MatExpr() [35]
+[24]     0.0    0.00    0.00    6606         cv::Mat::~Mat() [24]
+                0.00    0.00    7417/8020        cv::Mat::release() [23]
+-----------------------------------------------
+                0.00    0.00       5/5484        void __gnu_cxx::new_allocator<YAML::Scanner::FLOW_MARKER>::construct<YAML::Scanner::FLOW_MARKER, YAML::Scanner::FLOW_MARKER const&>(YAML::Scanner::FLOW_MARKER*, YAML::Scanner::FLOW_MARKER const&) [750]
+                0.00    0.00       5/5484        void std::_Construct<std::pair<YAML::detail::node*, bool>, std::pair<YAML::detail::node*, bool> >(std::pair<YAML::detail::node*, bool>*, std::pair<YAML::detail::node*, bool>&&) [2774]
+                0.00    0.00      35/5484        void std::_Construct<std::unique_ptr<YAML::Scanner::IndentMarker, std::default_delete<YAML::Scanner::IndentMarker> >, std::unique_ptr<YAML::Scanner::IndentMarker, std::default_delete<YAML::Scanner::IndentMarker> > >(std::unique_ptr<YAML::Scanner::IndentMarker, std::default_delete<YAML::Scanner::IndentMarker> >*, std::unique_ptr<YAML::Scanner::IndentMarker, std::default_delete<YAML::Scanner::IndentMarker> >&&) [2772]
+                0.00    0.00      40/5484        void __gnu_cxx::new_allocator<std::unique_ptr<YAML::Scanner::IndentMarker, std::default_delete<YAML::Scanner::IndentMarker> > >::construct<std::unique_ptr<YAML::Scanner::IndentMarker, std::default_delete<YAML::Scanner::IndentMarker> >, std::unique_ptr<YAML::Scanner::IndentMarker, std::default_delete<YAML::Scanner::IndentMarker> > >(std::unique_ptr<YAML::Scanner::IndentMarker, std::default_delete<YAML::Scanner::IndentMarker> >*, std::unique_ptr<YAML::Scanner::IndentMarker, std::default_delete<YAML::Scanner::IndentMarker> >&&) [827]
+                0.00    0.00      40/5484        void __gnu_cxx::new_allocator<YAML::Scanner::IndentMarker*>::construct<YAML::Scanner::IndentMarker*, YAML::Scanner::IndentMarker*>(YAML::Scanner::IndentMarker**, YAML::Scanner::IndentMarker*&&) [791]
+                0.00    0.00      40/5484        void __gnu_cxx::new_allocator<YAML::CollectionType::value>::construct<YAML::CollectionType::value, YAML::CollectionType::value const&>(YAML::CollectionType::value*, YAML::CollectionType::value const&) [718]
+                0.00    0.00      57/5484        void std::_Construct<YAML::RegEx, char const&>(YAML::RegEx*, char const&) [2767]
+                0.00    0.00      68/5484        void __gnu_cxx::new_allocator<YAML::RegEx>::construct<YAML::RegEx, YAML::RegEx const&>(YAML::RegEx*, YAML::RegEx const&) [736]
+                0.00    0.00     120/5484        void std::_Construct<std::pair<YAML::detail::node*, YAML::detail::node*>, std::pair<YAML::detail::node*, YAML::detail::node*> >(std::pair<YAML::detail::node*, YAML::detail::node*>*, std::pair<YAML::detail::node*, YAML::detail::node*>&&) [2773]
+                0.00    0.00     130/5484        void __gnu_cxx::new_allocator<std::pair<YAML::detail::node*, YAML::detail::node*> >::construct<std::pair<YAML::detail::node*, YAML::detail::node*>, YAML::detail::node*, YAML::detail::node*>(std::pair<YAML::detail::node*, YAML::detail::node*>*, YAML::detail::node*&&, YAML::detail::node*&&) [869]
+                0.00    0.00     130/5484        void __gnu_cxx::new_allocator<std::pair<YAML::detail::node*, bool> >::construct<std::pair<YAML::detail::node*, bool>, std::pair<YAML::detail::node*, bool> >(std::pair<YAML::detail::node*, bool>*, std::pair<YAML::detail::node*, bool>&&) [875]
+                0.00    0.00     160/5484        void __gnu_cxx::new_allocator<YAML::Scanner::SimpleKey>::construct<YAML::Scanner::SimpleKey, YAML::Scanner::SimpleKey const&>(YAML::Scanner::SimpleKey*, YAML::Scanner::SimpleKey const&) [756]
+                0.00    0.00     255/5484        void __gnu_cxx::new_allocator<YAML::Token>::construct<YAML::Token, YAML::Token const&>(YAML::Token*, YAML::Token const&) [743]
+                0.00    0.00     295/5484        void std::_Rb_tree<std::shared_ptr<YAML::detail::node>, std::shared_ptr<YAML::detail::node>, std::_Identity<std::shared_ptr<YAML::detail::node> >, std::less<std::shared_ptr<YAML::detail::node> >, std::allocator<std::shared_ptr<YAML::detail::node> > >::_M_construct_node<std::shared_ptr<YAML::detail::node> const&>(std::_Rb_tree_node<std::shared_ptr<YAML::detail::node> >*, std::shared_ptr<YAML::detail::node> const&) [2746]
+                0.00    0.00     295/5484        void __gnu_cxx::new_allocator<std::_Rb_tree_node<std::shared_ptr<YAML::detail::node> > >::construct<std::shared_ptr<YAML::detail::node>, std::shared_ptr<YAML::detail::node> const&>(std::shared_ptr<YAML::detail::node>*, std::shared_ptr<YAML::detail::node> const&) [839]
+                0.00    0.00     330/5484        void __gnu_cxx::new_allocator<YAML::detail::node*>::construct<YAML::detail::node*, YAML::detail::node*>(YAML::detail::node**, YAML::detail::node*&&) [781]
+                0.00    0.00     395/5484        void __gnu_cxx::new_allocator<YAML::Token>::construct<YAML::Token, YAML::Token>(YAML::Token*, YAML::Token&&) [744]
+                0.00    0.00     804/5484        void std::_Construct<YAML::RegEx, YAML::RegEx const&>(YAML::RegEx*, YAML::RegEx const&) [2766]
+                0.00    0.00    2280/5484        void __gnu_cxx::new_allocator<char>::construct<char, char>(char*, char&&) [881]
+[25]     0.0    0.00    0.00    5484         operator new(unsigned long, void*) [25]
+-----------------------------------------------
+                0.00    0.00     600/5402        cv::_InputArray::_InputArray(cv::Mat const&) [41]
+                0.00    0.00     600/5402        cv::_InputArray::_InputArray(cv::MatExpr const&) [38]
+                0.00    0.00     600/5402        cv::_OutputArray::_OutputArray<cv::Vec<unsigned char, 3> >(cv::Mat_<cv::Vec<unsigned char, 3> >&) [106]
+                0.00    0.00    1401/5402        cv::_OutputArray::_OutputArray(cv::Mat&) [36]
+                0.00    0.00    2201/5402        cv::_InputArray::_InputArray() [34]
+[26]     0.0    0.00    0.00    5402         cv::_InputArray::init(int, void const*) [26]
+-----------------------------------------------
+                0.00    0.00       4/4416        cv::Mat::Mat(cv::Mat&&) [59]
+                0.00    0.00       4/4416        cv::Mat::operator=(cv::Mat&&) [107]
+                0.00    0.00    1204/4416        cv::Mat::operator=(cv::Mat const&) [52]
+                0.00    0.00    3204/4416        cv::Mat::Mat(cv::Mat const&) [50]
+[27]     0.0    0.00    0.00    4416         cv::MatStep::operator[](int) [27]
+-----------------------------------------------
+                0.00    0.00    1204/4408        cv::Mat::operator=(cv::Mat const&) [52]
+                0.00    0.00    3204/4408        cv::Mat::Mat(cv::Mat const&) [50]
+[28]     0.0    0.00    0.00    4408         cv::MatStep::operator[](int) const [28]
+-----------------------------------------------
+                0.00    0.00     400/3801        cv::_InputArray::_InputArray(double const&) [42]
+                0.00    0.00     600/3801        cv::_InputArray::_InputArray(cv::Mat const&) [41]
+                0.00    0.00     600/3801        cv::_InputArray::_InputArray(cv::MatExpr const&) [38]
+                0.00    0.00    2201/3801        cv::_InputArray::_InputArray() [34]
+[29]     0.0    0.00    0.00    3801         cv::Size_<int>::Size_() [29]
+-----------------------------------------------
+                0.00    0.00     600/3601        displayLevels(Sandbox&) [2]
+                0.00    0.00     800/3601        colorizeDepth(cv::Mat, float, float) [3]
+                0.00    0.00    2201/3601        cv::_OutputArray::~_OutputArray() [37]
+[30]     0.0    0.00    0.00    3601         cv::_InputArray::~_InputArray() [30]
+-----------------------------------------------
+                0.00    0.00       1/2815        cv::Mat::Mat(cv::Mat&&) [59]
+                0.00    0.00       3/2815        cv::Mat::Mat(cv::Size_<int>, int) [54]
+                0.00    0.00     204/2815        cv::Mat::Mat(int, int, int) [51]
+                0.00    0.00    1005/2815        cv::Mat::Mat() [39]
+                0.00    0.00    1602/2815        cv::Mat::Mat(cv::Mat const&) [50]
+[31]     0.0    0.00    0.00    2815         cv::MatSize::MatSize(int*) [31]
+-----------------------------------------------
+                0.00    0.00       1/2815        cv::Mat::Mat(cv::Mat&&) [59]
+                0.00    0.00       3/2815        cv::Mat::Mat(cv::Size_<int>, int) [54]
+                0.00    0.00     204/2815        cv::Mat::Mat(int, int, int) [51]
+                0.00    0.00    1005/2815        cv::Mat::Mat() [39]
+                0.00    0.00    1602/2815        cv::Mat::Mat(cv::Mat const&) [50]
+[32]     0.0    0.00    0.00    2815         cv::MatStep::MatStep() [32]
+-----------------------------------------------
+                0.00    0.00     400/2401        cv::_InputArray::_InputArray(double const&) [42]
+                0.00    0.00    2001/2401        cv::MatSize::operator()() const [55]
+[33]     0.0    0.00    0.00    2401         cv::Size_<int>::Size_(int, int) [33]
+-----------------------------------------------
+                0.00    0.00     600/2001        cv::_OutputArray::_OutputArray<cv::Vec<unsigned char, 3> >(cv::Mat_<cv::Vec<unsigned char, 3> >&) [106]
+                0.00    0.00    1401/2001        cv::_OutputArray::_OutputArray(cv::Mat&) [36]
+[34]     0.0    0.00    0.00    2001         cv::_InputArray::_InputArray() [34]
+                0.00    0.00    2201/3801        cv::Size_<int>::Size_() [29]
+                0.00    0.00    2201/5402        cv::_InputArray::init(int, void const*) [26]
+-----------------------------------------------
+                0.00    0.00     600/1400        displayLevels(Sandbox&) [2]
+                0.00    0.00     800/1400        colorizeDepth(cv::Mat, float, float) [3]
+[35]     0.0    0.00    0.00    1400         cv::MatExpr::~MatExpr() [35]
+                0.00    0.00    4200/6606        cv::Mat::~Mat() [24]
+-----------------------------------------------
+                0.00    0.00    1000/1000        displayLevels(Sandbox&) [2]
+[36]     0.0    0.00    0.00    1000         cv::_OutputArray::_OutputArray(cv::Mat&) [36]
+                0.00    0.00    1401/2001        cv::_InputArray::_InputArray() [34]
+                0.00    0.00    1401/5402        cv::_InputArray::init(int, void const*) [26]
+-----------------------------------------------
+                0.00    0.00    1000/1000        displayLevels(Sandbox&) [2]
+[37]     0.0    0.00    0.00    1000         cv::_OutputArray::~_OutputArray() [37]
+                0.00    0.00    2201/3601        cv::_InputArray::~_InputArray() [30]
+-----------------------------------------------
+                0.00    0.00     200/600         displayLevels(Sandbox&) [2]
+                0.00    0.00     400/600         colorizeDepth(cv::Mat, float, float) [3]
+[38]     0.0    0.00    0.00     600         cv::_InputArray::_InputArray(cv::MatExpr const&) [38]
+                0.00    0.00     600/3801        cv::Size_<int>::Size_() [29]
+                0.00    0.00     600/5402        cv::_InputArray::init(int, void const*) [26]
+-----------------------------------------------
+                0.00    0.00     200/600         cv::Mat_<cv::Vec<unsigned char, 3> >::Mat_(cv::Mat const&) [12]
+                0.00    0.00     400/600         cv::MatExpr::operator cv::Mat() const [45]
+[39]     0.0    0.00    0.00     600         cv::Mat::Mat() [39]
+                0.00    0.00    1005/2815        cv::MatSize::MatSize(int*) [31]
+                0.00    0.00    1005/2815        cv::MatStep::MatStep() [32]
+-----------------------------------------------
+                0.00    0.00     400/400         cv::_InputArray::_InputArray(double const&) [42]
+[40]     0.0    0.00    0.00     400         cv::_InputArray::init(int, void const*, cv::Size_<int>) [40]
+                0.00    0.00     400/400         cv::Size_<int>::operator=(cv::Size_<int> const&) [44]
+-----------------------------------------------
+                0.00    0.00     400/400         displayLevels(Sandbox&) [2]
+[41]     0.0    0.00    0.00     400         cv::_InputArray::_InputArray(cv::Mat const&) [41]
+                0.00    0.00     600/3801        cv::Size_<int>::Size_() [29]
+                0.00    0.00     600/5402        cv::_InputArray::init(int, void const*) [26]
+-----------------------------------------------
+                0.00    0.00     400/400         colorizeDepth(cv::Mat, float, float) [3]
+[42]     0.0    0.00    0.00     400         cv::_InputArray::_InputArray(double const&) [42]
+                0.00    0.00     400/3801        cv::Size_<int>::Size_() [29]
+                0.00    0.00     400/2401        cv::Size_<int>::Size_(int, int) [33]
+                0.00    0.00     400/400         cv::_InputArray::init(int, void const*, cv::Size_<int>) [40]
+-----------------------------------------------
+                0.00    0.00     400/400         displayLevels(Sandbox&) [2]
+[43]     0.0    0.00    0.00     400         cv::Mat_<cv::Vec<unsigned char, 3> >::~Mat_() [43]
+                0.00    0.00     802/6606        cv::Mat::~Mat() [24]
+-----------------------------------------------
+                0.00    0.00     400/400         cv::_InputArray::init(int, void const*, cv::Size_<int>) [40]
+[44]     0.0    0.00    0.00     400         cv::Size_<int>::operator=(cv::Size_<int> const&) [44]
+-----------------------------------------------
+                0.00    0.00     200/400         displayLevels(Sandbox&) [2]
+                0.00    0.00     200/400         colorizeDepth(cv::Mat, float, float) [3]
+[45]     0.0    0.00    0.00     400         cv::MatExpr::operator cv::Mat() const [45]
+                0.00    0.00     400/600         cv::Mat::Mat() [39]
+-----------------------------------------------
+                0.00    0.00       3/207         cv::Mat::Mat(cv::Size_<int>, int) [54]
+                0.00    0.00     204/207         cv::Mat::Mat(int, int, int) [51]
+[46]     0.0    0.00    0.00     207         cv::Mat::create(int, int, int) [46]
+-----------------------------------------------
+                0.00    0.00     202/202         displayLevels(Sandbox&) [2]
+[47]     0.0    0.00    0.00     202         cv::String::String(char const*) [47]
+-----------------------------------------------
+                0.00    0.00     202/202         displayLevels(Sandbox&) [2]
+[48]     0.0    0.00    0.00     202         cv::String::~String() [48]
+-----------------------------------------------
+                0.00    0.00     201/201         displayLevels(Sandbox&) [2]
+[49]     0.0    0.00    0.00     201         cv::Mat_<float>::~Mat_() [49]
+                0.00    0.00     801/6606        cv::Mat::~Mat() [24]
+-----------------------------------------------
+                0.00    0.00     200/200         displayLevels(Sandbox&) [2]
+[50]     0.0    0.00    0.00     200         cv::Mat::Mat(cv::Mat const&) [50]
+                0.00    0.00    3204/4408        cv::MatStep::operator[](int) const [28]
+                0.00    0.00    3204/4416        cv::MatStep::operator[](int) [27]
+                0.00    0.00    1602/2815        cv::MatSize::MatSize(int*) [31]
+                0.00    0.00    1602/2815        cv::MatStep::MatStep() [32]
+-----------------------------------------------
+                0.00    0.00     200/200         colorizeDepth(cv::Mat, float, float) [3]
+[51]     0.0    0.00    0.00     200         cv::Mat::Mat(int, int, int) [51]
+                0.00    0.00     204/2815        cv::MatSize::MatSize(int*) [31]
+                0.00    0.00     204/2815        cv::MatStep::MatStep() [32]
+                0.00    0.00     204/207         cv::Mat::create(int, int, int) [46]
+-----------------------------------------------
+                0.00    0.00     200/200         cv::Mat_<cv::Vec<unsigned char, 3> >::operator=(cv::Mat const&) [14]
+[52]     0.0    0.00    0.00     200         cv::Mat::operator=(cv::Mat const&) [52]
+                0.00    0.00    1204/4408        cv::MatStep::operator[](int) const [28]
+                0.00    0.00    1204/4416        cv::MatStep::operator[](int) [27]
+                0.00    0.00     602/8020        cv::Mat::release() [23]
+-----------------------------------------------
+                0.00    0.00     200/200         cv::Mat_<cv::Vec<unsigned char, 3> >::operator=(cv::Mat const&) [14]
+[53]     0.0    0.00    0.00     200         cv::Mat::type() const [53]
+-----------------------------------------------
+                0.00    0.00       3/3           displayLevels(Sandbox&) [2]
+[54]     0.0    0.00    0.00       3         cv::Mat::Mat(cv::Size_<int>, int) [54]
+                0.00    0.00       3/2815        cv::MatSize::MatSize(int*) [31]
+                0.00    0.00       3/2815        cv::MatStep::MatStep() [32]
+                0.00    0.00       3/207         cv::Mat::create(int, int, int) [46]
+-----------------------------------------------
+                0.00    0.00       3/3           displayLevels(Sandbox&) [2]
+[55]     0.0    0.00    0.00       3         cv::MatSize::operator()() const [55]
+                0.00    0.00    2001/2401        cv::Size_<int>::Size_(int, int) [33]
+-----------------------------------------------
+                0.00    0.00       1/1           __libc_csu_init [3159]
+[56]     0.0    0.00    0.00       1         _GLOBAL__sub_I_main [56]
+                0.00    0.00       1/1           __static_initialization_and_destruction_0(int, int) [57]
+-----------------------------------------------
+                0.00    0.00       1/1           _GLOBAL__sub_I_main [56]
+[57]     0.0    0.00    0.00       1         __static_initialization_and_destruction_0(int, int) [57]
+-----------------------------------------------
+                0.00    0.00       1/1           displayLevels(Sandbox&) [2]
+[58]     0.0    0.00    0.00       1         Projection::getDistanceTopSandbox() [58]
+-----------------------------------------------
+                0.00    0.00       1/1           displayLevels(Sandbox&) [2]
+[59]     0.0    0.00    0.00       1         cv::Mat::Mat(cv::Mat&&) [59]
+                0.00    0.00       4/4416        cv::MatStep::operator[](int) [27]
+                0.00    0.00       1/2815        cv::MatSize::MatSize(int*) [31]
+                0.00    0.00       1/2815        cv::MatStep::MatStep() [32]
+-----------------------------------------------
+                0.00    0.00       1/1           displayLevels(Sandbox&) [2]
+[60]     0.0    0.00    0.00       1         Sandbox::getProjection() [60]
+-----------------------------------------------
+
+ This table describes the call tree of the program, and was sorted by
+ the total amount of time spent in each function and its children.
+
+ Each entry in this table consists of several lines.  The line with the
+ index number at the left hand margin lists the current function.
+ The lines above it list the functions that called this function,
+ and the lines below it list the functions this one called.
+ This line lists:
+     index	A unique number given to each element of the table.
+		Index numbers are sorted numerically.
+		The index number is printed next to every function name so
+		it is easier to look up where the function is in the table.
+
+     % time	This is the percentage of the `total' time that was spent
+		in this function and its children.  Note that due to
+		different viewpoints, functions excluded by options, etc,
+		these numbers will NOT add up to 100%.
+
+     self	This is the total amount of time spent in this function.
+
+     children	This is the total amount of time propagated into this
+		function by its children.
+
+     called	This is the number of times the function was called.
+		If the function called itself recursively, the number
+		only includes non-recursive calls, and is followed by
+		a `+' and the number of recursive calls.
+
+     name	The name of the current function.  The index number is
+		printed after it.  If the function is a member of a
+		cycle, the cycle number is printed between the
+		function's name and the index number.
+
+
+ For the function's parents, the fields have the following meanings:
+
+     self	This is the amount of time that was propagated directly
+		from the function into this parent.
+
+     children	This is the amount of time that was propagated from
+		the function's children into this parent.
+
+     called	This is the number of times this parent called the
+		function `/' the total number of times the function
+		was called.  Recursive calls to the function are not
+		included in the number after the `/'.
+
+     name	This is the name of the parent.  The parent's index
+		number is printed after it.  If the parent is a
+		member of a cycle, the cycle number is printed between
+		the name and the index number.
+
+ If the parents of the function cannot be determined, the word
+ `<spontaneous>' is printed in the `name' field, and all the other
+ fields are blank.
+
+ For the function's children, the fields have the following meanings:
+
+     self	This is the amount of time that was propagated directly
+		from the child into the function.
+
+     children	This is the amount of time that was propagated from the
+		child's children to the function.
+
+     called	This is the number of times the function called
+		this child `/' the total number of times the child
+		was called.  Recursive calls by the child are not
+		listed in the number after the `/'.
+
+     name	This is the name of the child.  The child's index
+		number is printed after it.  If the child is a
+		member of a cycle, the cycle number is printed
+		between the name and the index number.
+
+ If there are any cycles (circles) in the call graph, there is an
+ entry for the cycle-as-a-whole.  This entry shows who called the
+ cycle (as parents) and the members of the cycle (as children.)
+ The `+' recursive calls entry shows the number of function calls that
+ were internal to the cycle, and the calls entry for each member shows,
+ for that member, how many times it was called from other members of
+ the cycle.
+
+Copyright (C) 2012-2018 Free Software Foundation, Inc.
+
+Copying and distribution of this file, with or without modification,
+are permitted in any medium without royalty provided the copyright
+notice and this notice are preserved.
+
+Index by function name
+
+  [56] _GLOBAL__sub_I_main (display_levels.cpp) [23] cv::Mat::release() [44] cv::Size_<int>::operator=(cv::Size_<int> const&)
+   [4] floatToColor(float, float, float) [50] cv::Mat::Mat(cv::Mat const&) [47] cv::String::String(char const*)
+   [3] colorizeDepth(cv::Mat, float, float) [39] cv::Mat::Mat() [48] cv::String::~String()
+   [2] displayLevels(Sandbox&) [54] cv::Mat::Mat(cv::Size_<int>, int) [35] cv::MatExpr::~MatExpr()
+  [57] __static_initialization_and_destruction_0(int, int) (display_levels.cpp) [59] cv::Mat::Mat(cv::Mat&&) [31] cv::MatSize::MatSize(int*)
+  [58] Projection::getDistanceTopSandbox() [51] cv::Mat::Mat(int, int, int) [32] cv::MatStep::MatStep()
+  [26] cv::_InputArray::init(int, void const*) [24] cv::Mat::~Mat() [27] cv::MatStep::operator[](int)
+  [40] cv::_InputArray::init(int, void const*, cv::Size_<int>) [52] cv::Mat::operator=(cv::Mat const&) [7] cv::Scalar_<double>::Scalar_(double, double, double, double)
+  [41] cv::_InputArray::_InputArray(cv::Mat const&) [10] cv::Vec<double, 4>::Vec() [16] cv::Scalar_<double>::Scalar_(double)
+  [38] cv::_InputArray::_InputArray(cv::MatExpr const&) [8] cv::Vec<double, 4>::operator[](int) [60] Sandbox::getProjection()
+  [42] cv::_InputArray::_InputArray(double const&) [9] cv::Vec<unsigned char, 3>::operator[](int) [53] cv::Mat::type() const
+  [34] cv::_InputArray::_InputArray() [12] cv::Mat_<cv::Vec<unsigned char, 3> >::Mat_(cv::Mat const&) [45] cv::MatExpr::operator cv::Mat() const
+  [30] cv::_InputArray::~_InputArray() [43] cv::Mat_<cv::Vec<unsigned char, 3> >::~Mat_() [55] cv::MatSize::operator()() const
+  [36] cv::_OutputArray::_OutputArray(cv::Mat&) [14] cv::Mat_<cv::Vec<unsigned char, 3> >::operator=(cv::Mat const&) [28] cv::MatStep::operator[](int) const
+  [37] cv::_OutputArray::~_OutputArray() [49] cv::Mat_<float>::~Mat_() [15] std::vector<YAML::RegEx, std::allocator<YAML::RegEx> >::begin() const
+   [6] cv::Vec<unsigned char, 3>& cv::Mat::at<cv::Vec<unsigned char, 3> >(int, int) [11] cv::Matx<double, 4, 1>::Matx() [13] __gnu_cxx::__promote_2<float, int, __gnu_cxx::__promote<float, std::__is_integer<float>::__value>::__type, __gnu_cxx::__promote<int, std::__is_integer<int>::__value>::__type>::__type std::pow<float, int>(float, int)
+   [5] float& cv::Mat::at<float>(int, int) [33] cv::Size_<int>::Size_(int, int) [25] operator new(unsigned long, void*)
+  [46] cv::Mat::create(int, int, int) [29] cv::Size_<int>::Size_()
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