Mat TargetExtractor::extract(const Mat& frame, map<int, Target>& targets, bool track)
{
    mFrame = frame;

    /* for 2.avi:
     *     movement:   0.008;
     *     color:      120, 0.2;
     *     regionGrow: enable;
     * for 6.avi:
     *     movement:   0.012;
     *     color:      150, 0.4;
     *     regionGrow: disable;
     */

    movementDetect(0.012);
    colorDetect(150, 0.4);

    denoise(7, 5);
    fill(7, 5);
    medianBlur(mMask, mMask, 3);

    // TODO: make use of accumulate result

    //regionGrow();
    //fill(7, 6);
    //medianBlur(mMask, mMask, 3);

    //Mat element = getStructuringElement(MORPH_CROSS, Size(3, 3));
    //erode(mMask, mMask, element);
    //dilate(mMask, mMask, element);

    smallAreaFilter(12, 8);
#ifdef DEBUG_OUTPUT
    namedWindow("mask");
    moveWindow("mask", 350, 120);
    imshow("mask", mMask);
#endif
    if (track) {
        blobTrack(targets);
    }
    return mMask;
}
int main( int argc, char** argv )
{
  ros::init(argc, argv, "face_detect");
  ros::NodeHandle n;
  
  opencvCommands = n.advertise<robotBrain::opencvMessage>("opencv_commands",1000);
  image_transport::ImageTransport it(n);
  pub = it.advertise("camera/image", 1);
  
  cv::VideoCapture cap(1);
  
  if(!cap.isOpened()){
		ROS_FATAL("opencv:  COULD NOT OPEN CAMERA" );
		sendError();
	}
  
  //Load the cascades
	
  if( !face_cascade.load( face_cascade_name ) ){ 
    ROS_FATAL("--(!)Error loading FACE CASCADE(!)--" ); 
    sendError(); 
  }
  if( !eyes_cascade.load( eyes_cascade_name ) ){ 
    ROS_FATAL("--(!)Error loading EYE CASCADE(!)--"); 
    sendError(); 
  }
  
    cap.set(CV_CAP_PROP_FRAME_WIDTH, 320);
    cap.set(CV_CAP_PROP_FRAME_HEIGHT, 240);
  char key;
    while ( n.ok() ){
      cap.read(frame);
      if( !frame.empty() ) colorDetect();//detectAndDisplay(); 
      else {
	ROS_FATAL("opencv: FRAME FAIL " );
	sendError();	
      }
	//showing image
	cv::namedWindow( "Patrolling Android View", CV_WINDOW_AUTOSIZE );
  	cv::startWindowThread();
	cv::imshow( "Patrolling Android View", imgHSV);
      if (color & !face ) faceDetect();			//if we have a color and we havent previously detected a face we look for a face
      
      if(face) personTracking();				//if we have a face we follow the color 
      else {							//if not 
	message.camera = 's';
	message.errorOpenCV = '0';
	opencvCommands.publish( message );
      }
      key = cv::waitKey(100);
switch (key)
        {
            //hue
            case 'q':
                if (hue_low == hue_high)
                    ROS_INFO("hue_low must be less than hue_high");
                else 
                hue_low = hue_low + 1;
            break;
            case 'a':
                if (hue_low == 0) 
                    ROS_INFO("Hue is minimum");
                else
                    hue_low = hue_low - 1;
            break;
            case 'w':
                if (hue_high == 255)
                    ROS_INFO("Hue is maximum");
                else
                    hue_high = hue_high + 1;
            break;
            case 's':
                if (hue_high == hue_low)
                    ROS_INFO("hue_high must be greater than hue_low");
                else
                    hue_high = hue_high - 1;
            break;
           
            //saturation 
            case 'e':
                if (sat_low == sat_high)
                    ROS_INFO("sat_low must be less than sat_high");
                else 
                sat_low = sat_low + 1;
            break;
            case 'd':
                if (sat_low == 0) 
                    ROS_INFO("sat is minimum");
                else
                    sat_low = sat_low - 1;
            break;
            case 'r':
                if (sat_high == 255)
                    ROS_INFO("sat is maximum");
                else
                    sat_high = sat_high + 1;
            break;
            case 'f':
                if (sat_high == sat_low)
                    ROS_INFO("sat_high must be greater than sat_low");
                else
                    sat_high = sat_high - 1;
            break;
            
            //value 
            case 't':
                if (val_low == val_high)
                    ROS_INFO("val_low must be less than val_high");
                else 
                val_low = val_low + 1;
            break;
            case 'g':
                if (val_low == 0) 
                    ROS_INFO("val is minimum");
                else
                    val_low = val_low - 1;
            break;
            case 'y':
                if (val_high == 255)
                    ROS_INFO("val is maximum");
                else
                    val_high = val_high + 1;
            break;
            case 'h':
                if (val_high == val_low)
                    ROS_INFO("val_high must be greater than val_low");
                else
                    val_high = val_high - 1;
            break;
        }
      //ROS_INFO("Frames");
	ROS_INFO("Hue: %d-%d\tSat: %d-%d\tVal: %d-%d\n", hue_low, hue_high, sat_low, sat_high, val_low, val_high);
   }
  ROS_FATAL("COULD NOT CAPTURE FRAME");
  return -1;
}
Example #3
0
int main(void)
{
    // variables
    char val = 0;
    float dist = 0;
    int xx = 0;
    struct timespec tim, tim2;      // tim holds the desired sleep time, tim2 is filled with the remaining time if error occurs
    tim.tv_sec  = 0;
    tim.tv_nsec = 500000000L;       // 1/2 second sleep time

    // gpio initialization
    wiringPiSetup();
    pinMode(0,OUTPUT);      // stop sign signal
    digitalWrite(0,LOW);
    pinMode(7,OUTPUT);      // vibration motor signal
    digitalWrite(0,LOW);
    pinMode(15,INPUT);      // power switch
    pullUpDnControl(15, PUD_DOWN);

    // open default camera 0
    VideoCapture capture(0);
    if(!capture.isOpened())
    {
        // TODO need to send a message to pcb
        cout<<"ERROR: webcam problem\n";
        return 1;
    }

    // read current status of power switch
    xx = digitalRead(15);

    // 3 1/2 second vibrations to indicate power on
    digitalWrite(7,HIGH);
    if(nanosleep(&tim,&tim2) == EXIT_FAILURE)
        return EXIT_FAILURE;
    digitalWrite(7,LOW);
    if(nanosleep(&tim,&tim2) == EXIT_FAILURE)
        return EXIT_FAILURE;
    digitalWrite(7,HIGH);
    if(nanosleep(&tim,&tim2) == EXIT_FAILURE)
        return EXIT_FAILURE;
    digitalWrite(7,LOW);
    if(nanosleep(&tim,&tim2) == EXIT_FAILURE)
        return EXIT_FAILURE;
    digitalWrite(7,HIGH);
    if(nanosleep(&tim,&tim2) == EXIT_FAILURE)
        return EXIT_FAILURE;
    digitalWrite(7,LOW);

    // play power on sound track over speaker
    system("omxplayer -o local /home/pi/capstone/gdr_rasp/audio/ready2.mp3");

    // main loop
    while(1)
    {
        // check for shutdown command
        xx = digitalRead(15);
        if(xx == 0)
        {
            // 2 1/2 second vibrations to indicate power off
            digitalWrite(7,HIGH);
            if(nanosleep(&tim,&tim2) == EXIT_FAILURE)
                return EXIT_FAILURE;
            digitalWrite(7,LOW);
            if(nanosleep(&tim,&tim2) == EXIT_FAILURE)
                return EXIT_FAILURE;
            digitalWrite(7,HIGH);
            if(nanosleep(&tim,&tim2) == EXIT_FAILURE)
                return EXIT_FAILURE;
            digitalWrite(7,LOW);

            // play power down audio file
            system("omxplayer -o local /home/pi/capstone/gdr_rasp/audio/power_off.mp3");

            // shutdown raspberry pi
            system("shutdown now");
        }

        Mat frame;                      // holds a captured frame
        capture >> frame;               // get a new frame from camera

        // process image
        Mat red = colorDetect(frame);
        Mat out = shapeDetect(red, &dist);

        // display processed image (testing only) XXX
        /* imshow("result", out); */

        // print distance (testing only) XXX
        /* printf("%f\n",dist); */

        // write pin high if within 6 ft of stop sign
        if(val <= 90 && val > 20)
        {
            digitalWrite(0,HIGH);
        }
        digitalWrite(0,LOW);
        dist = 0;

        // if any key is pressed exit (needed for displaying image) XXX
        /* if(waitKey(30) >= 0) break; */
    }

    return 0;
}