1 // hand gesture sampler.cpp : Defines the entry point for the console application. 2  3 // 4 #include "stdafx.h" 5 #include 
     
       6 #include 
      
        7  8 #include 
       
         9 10 using namespace cv;11 using namespace std;12 13 Mat src, src2Save;14 char cfileName[1024];15 string sfileName = "";16 Size outputSize = Size(320, 240);17 18 template 
        
          string NumberToString ( T Number );19 void help();20 21 22 int main()23 {24     help();25 26     namedWindow("monitor", 1);27 28     VideoCapture cap(0);29 30     if(cap.isOpened())31     {32         int c = 0;33         int num = 0;34         bool sampleState = false;35 36         //main loop37         while( c != 27)38         {39             if(c == 98) sampleState = true;40             if(c == 115) sampleState = false;41 42             //get webcam image43             cap >> src;44 45             //resize image to 320*24046             if(src.cols > 320 || src.rows > 240) resize(src, src2Save, outputSize, 0.5, 0.5, 1);47 48             //show image49             imshow("monitor", src2Save);50 51             //save image            52             sfileName = "f:/documents/Downloads/hand gesture pictures/" + NumberToString(num) + ".png";53             if(sampleState) 54             { 55                 imwrite(sfileName, src2Save); 56                 num ++;57                 cout<<"\nCollected Sample Number - " << num << endl;58             }            59 60             //exit loop61             c = waitKey(10);62         }63     }64     else65         //end app66         return -1;67 68     return 0;69 }70 71 template 
         
          72   string NumberToString ( T Number )73   {74      ostringstream ss;75      ss << Number;76      return ss.str();77   }78 79 void help()80 {81     printf(82         "========================\n"83         "========================\n"84         "Programme to collect a good number of hand gestures from video streams.\n"85         "Usage:\n"86         "(s)top - stop sampling\n"87         "(b)egin - begin sampling\n"88         "ESC - exit the programme\n"89         "==========================\n"90         "==========================\n"91         );92 }