key g_keymap[] =
　　{
　　{'4',525,350,588,419},
　　{'5',442,345,504,414},
　　{'6',360,339,422,408},
　　{'7',277,332,342,404},
　　{'8',198,327,259,399},
　　{'9',121,320,174,389},
　　{'0',41, 318,94, 383},
　　{'E',528,274,590,337},
　　{'R',443,267,507,332},
　　{'T',359,263,428,327},
　　{'Y',280,259,344,321},
　　{'U',199,251,261,315},
　　{'I',119,246,179,307},
　　{'O',41, 240,96, 301},
　　{'D',504,203,567,259},
　　{'F',424,199,489,257},
　　{'G',348,194,410,251},
　　{'H',266,187,329,245},
　　{'J',192,183,251,241},
　　{'K',117,178,171,236},
　　{'L',42 ,174,92, 229},
　　{'X',543,144,605,197},
　　{'C',467,139,530,191},
　　{'V',392,135,457,190},
　　{'B',316,128,377,181},
　　{'N',242,124,299,176},
　　{'M',171,118,225,172},
　　{'<',98, 114,149,166},
　　{'>',26, 108,73, 159},
　　{'_',182,62, 531,127},
　　};

　　int g_key_num = sizeof(g_keymap)/sizeof(key);

　　int main()
　　{
　　CvTracks tracks;

　　cvNamedWindow("red_object_tracking", CV_WINDOW_AUTOSIZE);

　　CvCapture *capture = cvCaptureFromCAM(0);
　　cvGrabFrame(capture);
　　IplImage *img = cvRetrieveFrame(capture);

　　CvSize imgSize = cvGetSize(img);

　　IplImage *frame = cvCreateImage(imgSize, img->depth, img->nChannels);

　　IplConvKernel* morphKernel = cvCreateStructuringElementEx(5, 5, 1, 1, CV_SHAPE_RECT, NULL);