示例#1
0
void RawMultiTestApp::setup()
{

	setFrameRate(60);
	setWindowSize(1280, 480);

	PGRGuid	guid;

	//////////////////
	// setup camera 1
	mErr = mBusManager.GetCameraFromIndex(0, &guid);
    if (mErr != PGRERROR_OK) {
		showError();
		quit();
	}

	mCamera1 = new FlyCapture2::Camera();
	mErr = mCamera1->Connect(&guid);
    if (mErr != PGRERROR_OK) {
		showError();
		mCamera1 = 0;
		quit();
	}

	mCam1Data.targetSurface = Surface8u(640, 480, false);
	mErr = mCamera1->StartCapture(onImageGrabbed, &mCam1Data);
    if (mErr != PGRERROR_OK) {
		showError();
		quit();
	}

	//////////////////
	// setup camera 2
	mErr = mBusManager.GetCameraFromIndex(1, &guid);
    if (mErr != PGRERROR_OK) {
		showError();
		quit();
	}

	mCamera2 = new FlyCapture2::Camera();
	mErr = mCamera2->Connect(&guid);
    if (mErr != PGRERROR_OK) {
		showError();
		mCamera2 = 0;
		quit();
	}

	mCam2Data.targetSurface = Surface8u(640, 480, false);
	mErr = mCamera2->StartCapture(onImageGrabbed, &mCam2Data);
    if (mErr != PGRERROR_OK) {
		showError();
		quit();
	}

}
vector<CameraInfo> CameraPointGrey::getCameraList(){
    
    FlyCapture2::Error error;

    FlyCapture2::BusManager busManager;
    unsigned int numCameras;
    error = busManager.GetNumOfCameras(&numCameras);

    vector<CameraInfo> ret;

    if (error != FlyCapture2::PGRERROR_OK){
        PrintError(error);
        return ret;
    }

    for (unsigned int i=0; i < numCameras; i++){
        FlyCapture2::PGRGuid guid;
        error = busManager.GetCameraFromIndex(i, &guid);
        if (error != FlyCapture2::PGRERROR_OK)
            PrintError(error);

        // Connect to camera
        FlyCapture2::Camera cam;
        error = cam.Connect(&guid);
        if (error != FlyCapture2::PGRERROR_OK)
            PrintError( error );

        // Get the camera information
        FlyCapture2::CameraInfo camInfo;
        error = cam.GetCameraInfo(&camInfo);
        if (error != FlyCapture2::PGRERROR_OK)
            PrintError( error );

        CameraInfo camera;
        camera.busID = camInfo.nodeNumber;
        camera.model = camInfo.modelName;
        camera.vendor = "Point Grey Research";

        ret.push_back(camera);
    }

    return ret;
}
示例#3
0
void BACKEND_METHOD(cam_iface_get_camera_info)(int device_number, Camwire_id *out_camid) {
  CAM_IFACE_CHECK_DEVICE_NUMBER(device_number);
  if (out_camid==NULL) { CAM_IFACE_THROW_ERROR("return structure NULL"); }

  FlyCapture2::PGRGuid guid;
  CIPGRCHK( BACKEND_GLOBAL(busMgr_ptr)->GetCameraFromIndex(device_number, &guid));

  FlyCapture2::CameraInfo camInfo;
  FlyCapture2::Camera *cam = new FlyCapture2::Camera;
  CIPGRCHK(cam->Connect(&guid));
  CIPGRCHK(cam->GetCameraInfo(&camInfo));
  CIPGRCHK(cam->Disconnect());

  cam_iface_snprintf(out_camid->vendor, CAMWIRE_ID_MAX_CHARS, camInfo.vendorName);
  cam_iface_snprintf(out_camid->model, CAMWIRE_ID_MAX_CHARS, camInfo.modelName);
  cam_iface_snprintf(out_camid->chip, CAMWIRE_ID_MAX_CHARS, "GUID %x %x %x %x",
		     guid.value[0],
		     guid.value[1],
		     guid.value[2],
		     guid.value[3]);
}
示例#4
0
int init_cam_capture ( FlyCapture2::Camera &camera, PGRGuid guid)  
{
  CameraInfo camInfo;

  // Connect the camera
    err = camera.Connect( &guid );
    if ( err != PGRERROR_OK )
    {
        std::cout << "Failed to connect to camera" << std::endl;     
        return false;
    }
    
    // Get the camera info and print it out
    err = camera.GetCameraInfo( &camInfo );
    if ( err != PGRERROR_OK )
    {
        std::cout << "Failed to get camera info from camera" << std::endl;     
        return false;
    }
    std::cout << camInfo.vendorName << " "
          << camInfo.modelName << " " 
          << camInfo.serialNumber << std::endl;
  
    err = camera.StartCapture();
    if ( err == PGRERROR_ISOCH_BANDWIDTH_EXCEEDED )
    {
        std::cout << "Bandwidth exceeded" << std::endl;     
        return false;
    }
    else if ( err != PGRERROR_OK )
    {
        std::cout << "Failed to start image capture" << std::endl;     
        return false;
    } 

}
示例#5
0
void CCflycap_CCflycap( CCflycap * ccntxt, int device_number, int NumImageBuffers,
                        int mode_number) {

  // call parent
  CamContext_CamContext((CamContext*)ccntxt,device_number,NumImageBuffers,mode_number); // XXX cast error?
  ccntxt->inherited.vmt = (CamContext_functable*)&CCflycap_vmt;

  CAM_IFACE_CHECK_DEVICE_NUMBER(device_number);
  std::vector<CamMode> result;
  int myerr = get_mode_list(device_number, result);

  ccntxt->inherited.device_number = device_number;
  ccntxt->inherited.backend_extras = new cam_iface_backend_extras;
  memset(ccntxt->inherited.backend_extras,0,sizeof(cam_iface_backend_extras));

  FlyCapture2::Camera *cam = new FlyCapture2::Camera;
  FlyCapture2::PGRGuid guid;
  CIPGRCHK( BACKEND_GLOBAL(busMgr_ptr)->GetCameraFromIndex(device_number, &guid));
  CIPGRCHK(cam->Connect(&guid));

  FlyCapture2::FC2Config cfg;
  CIPGRCHK(cam->GetConfiguration(&cfg));
  cfg.numBuffers = NumImageBuffers;
  CIPGRCHK(cam->SetConfiguration(&cfg));

  // Set the settings to the camera
  CamMode target_mode = result[mode_number];

  if (target_mode.videomode == FlyCapture2::VIDEOMODE_FORMAT7) {
    CIPGRCHK(cam->SetFormat7Configuration(&target_mode.fmt7ImageSettings,
					  target_mode.fmt7PacketInfo.recommendedBytesPerPacket ));
  } else {
    CIPGRCHK(cam->SetVideoModeAndFrameRate(target_mode.videomode, target_mode.framerate));
  }

  ccntxt->inherited.cam = (void*)cam;

  // XXX move this to start camera and query camera for settings

  CIPGRCHK(cam->StartCapture());


  // Retrieve an image to get width, height. XXX change to query later.
  FlyCapture2::Image rawImage;
  CIPGRCHK( cam->RetrieveBuffer( &rawImage ));

  cam_iface_backend_extras *extras = (cam_iface_backend_extras *)ccntxt->inherited.backend_extras;

  ccntxt->inherited.depth = rawImage.GetBitsPerPixel();
  extras->buf_size = rawImage.GetDataSize();
  extras->current_height = rawImage.GetRows();
  extras->current_width = rawImage.GetCols();
  extras->max_height = rawImage.GetRows();
  extras->max_width = rawImage.GetCols();
  CIPGRCHK( cam->GetTriggerModeInfo( &extras->trigger_mode_info ));

  switch (rawImage.GetPixelFormat()) {
  case FlyCapture2::PIXEL_FORMAT_MONO8:
    ccntxt->inherited.coding = CAM_IFACE_MONO8;
    if (rawImage.GetBayerTileFormat()!=FlyCapture2::NONE) {
      NOT_IMPLEMENTED;
    }
    break;
  case FlyCapture2::PIXEL_FORMAT_RAW8:
    switch (rawImage.GetBayerTileFormat()) {
    case FlyCapture2::NONE:
      ccntxt->inherited.coding = CAM_IFACE_RAW8;
      break;
    case FlyCapture2::RGGB:
      ccntxt->inherited.coding = CAM_IFACE_MONO8_BAYER_RGGB;
      break;
    case FlyCapture2::GRBG:
      ccntxt->inherited.coding = CAM_IFACE_MONO8_BAYER_GRBG;
      break;
    case FlyCapture2::GBRG:
      ccntxt->inherited.coding = CAM_IFACE_MONO8_BAYER_GBRG;
      break;
    case FlyCapture2::BGGR:
      ccntxt->inherited.coding = CAM_IFACE_MONO8_BAYER_BGGR;
      break;
    default:
      NOT_IMPLEMENTED;
    }
  }
  CIPGRCHK(cam->StopCapture());

}
示例#6
0
int get_mode_list(int device_number, std::vector<CamMode> &result ) {

  FlyCapture2::Camera *cam = new FlyCapture2::Camera;
  FlyCapture2::PGRGuid guid;
  FlyCapture2::Error err;
  CamMode mode;
  FlyCapture2::Format7Info fmt7Info;
  bool supported;

  //FlyCapture2::Mode k_fmt7Mode;
  //FlyCapture2::PixelFormat k_fmt7PixFmt;
  std::ostringstream oss;
  std::vector<FlyCapture2::Mode> fmt7modes;
  fmt7modes.push_back(FlyCapture2::MODE_0);
  fmt7modes.push_back(FlyCapture2::MODE_1);
  fmt7modes.push_back(FlyCapture2::MODE_2);
  fmt7modes.push_back(FlyCapture2::MODE_3);
  fmt7modes.push_back(FlyCapture2::MODE_4);
  fmt7modes.push_back(FlyCapture2::MODE_5);
  fmt7modes.push_back(FlyCapture2::MODE_6);
  fmt7modes.push_back(FlyCapture2::MODE_7);
  fmt7modes.push_back(FlyCapture2::MODE_8);
  fmt7modes.push_back(FlyCapture2::MODE_9);
  fmt7modes.push_back(FlyCapture2::MODE_10);
  fmt7modes.push_back(FlyCapture2::MODE_11);
  fmt7modes.push_back(FlyCapture2::MODE_12);
  fmt7modes.push_back(FlyCapture2::MODE_13);
  fmt7modes.push_back(FlyCapture2::MODE_14);
  fmt7modes.push_back(FlyCapture2::MODE_15);
  fmt7modes.push_back(FlyCapture2::MODE_16);
  fmt7modes.push_back(FlyCapture2::MODE_17);
  fmt7modes.push_back(FlyCapture2::MODE_18);
  fmt7modes.push_back(FlyCapture2::MODE_19);
  fmt7modes.push_back(FlyCapture2::MODE_20);
  fmt7modes.push_back(FlyCapture2::MODE_21);
  fmt7modes.push_back(FlyCapture2::MODE_22);
  fmt7modes.push_back(FlyCapture2::MODE_23);
  fmt7modes.push_back(FlyCapture2::MODE_24);
  fmt7modes.push_back(FlyCapture2::MODE_25);
  fmt7modes.push_back(FlyCapture2::MODE_26);
  fmt7modes.push_back(FlyCapture2::MODE_27);
  fmt7modes.push_back(FlyCapture2::MODE_28);
  fmt7modes.push_back(FlyCapture2::MODE_29);
  fmt7modes.push_back(FlyCapture2::MODE_30);
  fmt7modes.push_back(FlyCapture2::MODE_31);

  std::vector<FlyCapture2::PixelFormat> pixfmts;
  pixfmts.push_back(FlyCapture2::PIXEL_FORMAT_MONO8);
  pixfmts.push_back(FlyCapture2::PIXEL_FORMAT_411YUV8);
  pixfmts.push_back(FlyCapture2::PIXEL_FORMAT_422YUV8);
  pixfmts.push_back(FlyCapture2::PIXEL_FORMAT_444YUV8);
  pixfmts.push_back(FlyCapture2::PIXEL_FORMAT_RGB8);
  pixfmts.push_back(FlyCapture2::PIXEL_FORMAT_MONO16);
  pixfmts.push_back(FlyCapture2::PIXEL_FORMAT_RGB16);
  pixfmts.push_back(FlyCapture2::PIXEL_FORMAT_S_MONO16);
  pixfmts.push_back(FlyCapture2::PIXEL_FORMAT_S_RGB16);
  pixfmts.push_back(FlyCapture2::PIXEL_FORMAT_RAW8);
  pixfmts.push_back(FlyCapture2::PIXEL_FORMAT_RAW16);
  pixfmts.push_back(FlyCapture2::PIXEL_FORMAT_MONO12);
  pixfmts.push_back(FlyCapture2::PIXEL_FORMAT_RAW12);
  pixfmts.push_back(FlyCapture2::PIXEL_FORMAT_BGR);
  pixfmts.push_back(FlyCapture2::PIXEL_FORMAT_BGRU);
  pixfmts.push_back(FlyCapture2::PIXEL_FORMAT_RGB);
  pixfmts.push_back(FlyCapture2::PIXEL_FORMAT_RGBU);

  err = BACKEND_GLOBAL(busMgr_ptr)->GetCameraFromIndex(device_number, &guid);
  // if (err!=FlyCapture2::PGRERROR_OK) {
  //   goto errlabel2;
  // }
  err = cam->Connect(&guid);
  // if (err!=FlyCapture2::PGRERROR_OK) {
  //   goto errlabel2;
  // }

  // FORMAT 7 -- test all modes
  std::vector<FlyCapture2::Mode>::const_iterator fmt7mode;
  for(fmt7mode=fmt7modes.begin(); fmt7mode!=fmt7modes.end(); fmt7mode++) {
    fmt7Info.mode = *fmt7mode;
    err = cam->GetFormat7Info( &fmt7Info, &supported );
    // if (err != FlyCapture2::PGRERROR_OK) goto errlabel1;

    // Do work
    if (supported) {

      std::vector<FlyCapture2::PixelFormat>::const_iterator pixfmt;
      for(pixfmt=pixfmts.begin(); pixfmt!=pixfmts.end(); pixfmt++) {
	if (*pixfmt & fmt7Info.pixelFormatBitField) {

	  std::ostringstream oss = std::ostringstream();
	  oss << "format 7, mode " << *fmt7mode << " (" << pixfmt2string(*pixfmt) << ", " << fmt7Info.maxWidth << "x" << fmt7Info.maxHeight <<")";

	  mode.descr = oss.str();
	  mode.videomode = FlyCapture2::VIDEOMODE_FORMAT7;
	  mode.fmt7ImageSettings.mode = *fmt7mode;
	  mode.fmt7ImageSettings.offsetX = 0;
	  mode.fmt7ImageSettings.offsetY = 0;
	  mode.fmt7ImageSettings.width = fmt7Info.maxWidth;
	  mode.fmt7ImageSettings.height = fmt7Info.maxHeight;
	  mode.fmt7ImageSettings.pixelFormat = *pixfmt;

	  bool valid;
	  err = cam->ValidateFormat7Settings( &mode.fmt7ImageSettings,
					      &valid,
					      &mode.fmt7PacketInfo );
	  if (err == FlyCapture2::PGRERROR_OK) {
	    result.push_back(mode);
	  }
	}
      }
    }
  }

  // not format 7 -- test each videomode and framerate combination

  std::vector<FlyCapture2::VideoMode> videomodes;
  videomodes.push_back(FlyCapture2::VIDEOMODE_160x120YUV444);
  videomodes.push_back(FlyCapture2::VIDEOMODE_320x240YUV422);
  videomodes.push_back(FlyCapture2::VIDEOMODE_640x480YUV411);
  videomodes.push_back(FlyCapture2::VIDEOMODE_640x480YUV422);
  videomodes.push_back(FlyCapture2::VIDEOMODE_640x480RGB);
  videomodes.push_back(FlyCapture2::VIDEOMODE_640x480Y8);
  videomodes.push_back(FlyCapture2::VIDEOMODE_640x480Y16);
  videomodes.push_back(FlyCapture2::VIDEOMODE_800x600YUV422);
  videomodes.push_back(FlyCapture2::VIDEOMODE_800x600RGB);
  videomodes.push_back(FlyCapture2::VIDEOMODE_800x600Y8);
  videomodes.push_back(FlyCapture2::VIDEOMODE_800x600Y16);
  videomodes.push_back(FlyCapture2::VIDEOMODE_1024x768YUV422);
  videomodes.push_back(FlyCapture2::VIDEOMODE_1024x768RGB);
  videomodes.push_back(FlyCapture2::VIDEOMODE_1024x768Y8);
  videomodes.push_back(FlyCapture2::VIDEOMODE_1024x768Y16);
  videomodes.push_back(FlyCapture2::VIDEOMODE_1280x960YUV422);
  videomodes.push_back(FlyCapture2::VIDEOMODE_1280x960RGB);
  videomodes.push_back(FlyCapture2::VIDEOMODE_1280x960Y8);
  videomodes.push_back(FlyCapture2::VIDEOMODE_1280x960Y16);
  videomodes.push_back(FlyCapture2::VIDEOMODE_1600x1200YUV422);
  videomodes.push_back(FlyCapture2::VIDEOMODE_1600x1200RGB);
  videomodes.push_back(FlyCapture2::VIDEOMODE_1600x1200Y8);
  videomodes.push_back(FlyCapture2::VIDEOMODE_1600x1200Y16);

  std::vector<FlyCapture2::FrameRate> framerates;
  framerates.push_back(FlyCapture2::FRAMERATE_1_875);
  framerates.push_back(FlyCapture2::FRAMERATE_3_75);
  framerates.push_back(FlyCapture2::FRAMERATE_7_5);
  framerates.push_back(FlyCapture2::FRAMERATE_15);
  framerates.push_back(FlyCapture2::FRAMERATE_30);
  framerates.push_back(FlyCapture2::FRAMERATE_60);
  framerates.push_back(FlyCapture2::FRAMERATE_120);
  framerates.push_back(FlyCapture2::FRAMERATE_240);

  std::vector<FlyCapture2::VideoMode>::const_iterator videomode;
  for(videomode=videomodes.begin(); videomode!=videomodes.end(); videomode++) {
    std::vector<FlyCapture2::FrameRate>::const_iterator framerate;
    for(framerate=framerates.begin(); framerate!=framerates.end(); framerate++) {
      err = cam->GetVideoModeAndFrameRateInfo(*videomode, *framerate, &supported);
      if (err == FlyCapture2::PGRERROR_OK) {
	if (supported) {
	  std::ostringstream oss = std::ostringstream();
	  oss << "videomode " << *videomode << " framerate " << *framerate;
	  mode.descr = oss.str();
	  mode.videomode = *videomode;
	  mode.framerate = *framerate;
	}
      }
    }
  }

  // err = cam->Disconnect();
  cam->Disconnect();
  return 0;


 // errlabel1:
  // err = cam->Disconnect();
 // errlabel2:
 //  return 1;
}
示例#7
0
int main()
{
    FlyCapture2::Error error;
    FlyCapture2::PGRGuid guid;
    FlyCapture2::BusManager busMgr;
    FlyCapture2::Camera cam;
    FlyCapture2::VideoMode vm;
    FlyCapture2::FrameRate fr;
    FlyCapture2::Image rawImage;

    //Initializing camera
        error = busMgr.GetCameraFromIndex(0, &guid);
    if (error != FlyCapture2::PGRERROR_OK)
    {
        error.PrintErrorTrace();
        return CAM_FAILURE;
    }

          vm = FlyCapture2::VIDEOMODE_640x480Y8;
    fr = FlyCapture2::FRAMERATE_60;

    error = cam.Connect(&guid);
    if (error != FlyCapture2::PGRERROR_OK)
    {
        error.PrintErrorTrace();
        return CAM_FAILURE;
    }

    cam.SetVideoModeAndFrameRate(vm, fr);
    //Starting the capture
    error = cam.StartCapture();
    if (error != FlyCapture2::PGRERROR_OK)
    {
        error.PrintErrorTrace();
               return CAM_FAILURE;
    }

    while(1)
    {
        Mat frame (Size(640,480),CV_8UC1);
        // Mat img_scene (Size(640,480),CV_8UC3);
        Mat img_object = imread( "bitslogo.png", CV_LOAD_IMAGE_GRAYSCALE );
        cam.RetrieveBuffer(&rawImage);
        memcpy(frame.data, rawImage.GetData(), rawImage.GetDataSize());
        cvtColor(frame,frame,CV_BayerBG2RGB);
        imwrite("temp.bmp",frame);
        // cvtColor(img_scene,img_scene,CV_RGB2GRAY);
        Mat img_scene = imread( "temp.bmp", CV_LOAD_IMAGE_GRAYSCALE );

        if( !img_object.data || !img_scene.data )
        { std::cout<< " --(!) Error reading images " << std::endl; return -1; }

        //-- Step 1: Detect the keypoints using SURF Detector
        int minHessian = 400;

        SurfFeatureDetector detector( minHessian );

        std::vector<KeyPoint> keypoints_object, keypoints_scene;

        detector.detect( img_object, keypoints_object );
        detector.detect( img_scene, keypoints_scene );

        //-- Step 2: Calculate descriptors (feature vectors)
        SurfDescriptorExtractor extractor;

        Mat descriptors_object, descriptors_scene;

        extractor.compute( img_object, keypoints_object, descriptors_object );
        extractor.compute( img_scene, keypoints_scene, descriptors_scene );

        //-- Step 3: Matching descriptor vectors using FLANN matcher
        FlannBasedMatcher matcher;
        std::vector< DMatch > matches;
        matcher.match( descriptors_object, descriptors_scene, matches );

        double max_dist = 0; double min_dist = 100;

        //-- Quick calculation of max and min distances between keypoints
        for( int i = 0; i < descriptors_object.rows; i++ )
        { double dist = matches[i].distance;
          if( dist < min_dist ) min_dist = dist;
          if( dist > max_dist ) max_dist = dist;
        }

        printf("-- Max dist : %f \n", max_dist );
        printf("-- Min dist : %f \n", min_dist );

        //-- Draw only "good" matches (i.e. whose distance is less than 3*min_dist )
        std::vector< DMatch > good_matches;

        for( int i = 0; i < descriptors_object.rows; i++ )
        { if( matches[i].distance < 3*min_dist )
           { good_matches.push_back( matches[i]); }
        }

        Mat img_matches;
        drawMatches( img_object, keypoints_object, img_scene, keypoints_scene,
                     good_matches, img_matches, Scalar::all(-1), Scalar::all(-1),
                     vector<char>(), DrawMatchesFlags::NOT_DRAW_SINGLE_POINTS );

        //-- Localize the object
        std::vector<Point2f> obj;
        std::vector<Point2f> scene;

        for( int i = 0; i < good_matches.size(); i++ )
        {
          //-- Get the keypoints from the good matches
          obj.push_back( keypoints_object[ good_matches[i].queryIdx ].pt );
          scene.push_back( keypoints_scene[ good_matches[i].trainIdx ].pt );
        }

        Mat H = findHomography( obj, scene, CV_RANSAC );

        //-- Get the corners from the image_1 ( the object to be "detected" )
        std::vector<Point2f> obj_corners(4);
        obj_corners[0] = cvPoint(0,0); obj_corners[1] = cvPoint( img_object.cols, 0 );
        obj_corners[2] = cvPoint( img_object.cols, img_object.rows ); obj_corners[3] = cvPoint( 0, img_object.rows );
        std::vector<Point2f> scene_corners(4);

        perspectiveTransform( obj_corners, scene_corners, H);

        //-- Draw lines between the corners (the mapped object in the scene - image_2 )
        line( img_matches, scene_corners[0] + Point2f( img_object.cols, 0), scene_corners[1] + Point2f( img_object.cols, 0), Scalar(0, 255, 0), 4 );
        line( img_matches, scene_corners[1] + Point2f( img_object.cols, 0), scene_corners[2] + Point2f( img_object.cols, 0), Scalar( 0, 255, 0), 4 );
        line( img_matches, scene_corners[2] + Point2f( img_object.cols, 0), scene_corners[3] + Point2f( img_object.cols, 0), Scalar( 0, 255, 0), 4 );
        line( img_matches, scene_corners[3] + Point2f( img_object.cols, 0), scene_corners[0] + Point2f( img_object.cols, 0), Scalar( 0, 255, 0), 4 );

        //-- Show detected matches
        imshow( "Good Matches & Object detection", img_matches );
        int c = cvWaitKey(100);
        if(c == 27)
            break;
    }

    return 0;
}
示例#8
0
int main()
{
    FlyCapture2::Error error;
    FlyCapture2::PGRGuid guid;
    FlyCapture2::BusManager busMgr;
    FlyCapture2::Camera cam;
    FlyCapture2::VideoMode vm;
    FlyCapture2::FrameRate fr;
    FlyCapture2::Image rawImage;

    //Initializing camera
        error = busMgr.GetCameraFromIndex(0, &guid);
    if (error != FlyCapture2::PGRERROR_OK)
    {
        error.PrintErrorTrace();
        return CAM_FAILURE;
    }

          vm = FlyCapture2::VIDEOMODE_640x480Y8;
    fr = FlyCapture2::FRAMERATE_60;

    error = cam.Connect(&guid);
    if (error != FlyCapture2::PGRERROR_OK)
    {
        error.PrintErrorTrace();
        return CAM_FAILURE;
    }

    cam.SetVideoModeAndFrameRate(vm, fr);
    //Starting the capture
    error = cam.StartCapture();
    if (error != FlyCapture2::PGRERROR_OK)
    {
        error.PrintErrorTrace();
               return CAM_FAILURE;
    }

        //Image Variables
        Mat frame (Size(640,480),CV_8UC1);
        Mat img_bgr (Size(640,480),CV_8UC3);
        Mat img_hsv (Size(640,480),CV_8UC3);                        //Image in HSV color space
        Mat threshy (Size(640,480),CV_8UC1);                                //Threshed Image
        // Mat labelImg (Size(640,480),CV_8UC1);        //Image Variable for blobs
        IplImage* histogram= cvCreateImage(cvSize(640,480),8,3);                        //Image histograms
        Mat histograms (Size(640,480),CV_8UC1);         //greyscale image for histogram
        Mat empty (Size(640,480),CV_8UC3);        

        

        // CvBlobs blobs;
        
        while(1)
        {
                cam.RetrieveBuffer(&rawImage);
                memcpy(frame.data, rawImage.GetData(), rawImage.GetDataSize());
                // histogram = empty.clone();
                cvZero(histogram);
                // cvAddS(frame, cvScalar(70,70,70), frame);
                cvtColor(frame,img_bgr,CV_BayerBG2BGR);
                // cout<<"\n1";
                cvtColor(img_bgr,img_hsv,CV_BGR2HSV);        
                // cout<<"\n2";                                        
                //Thresholding the frame for yellow
                inRange(img_hsv, Scalar(20, 100, 20), Scalar(70, 255, 255), threshy);                                        
                // cvInRangeS(img_hsv, cvScalar(0, 120, 100), cvScalar(255, 255, 255), threshy);
                //Filtering the frame - subsampling??
                // smooth(threshy,threshy,CV_MEDIAN,7,7);

                //Finding the blobs
                // unsigned int result=cvLabel(threshy,labelImg,blobs);
                //Filtering the blobs
                // cvFilterByArea(blobs,500,1000);
                //Rendering the blobs
                // cvRenderBlobs(labelImg,blobs,img_bgr,img_bgr);

                CvPoint prev = cvPoint(0,0);

                for(int x=0;x<640;++x)
                {
                        Mat col = threshy.col(x);
                        int y = 480 - countNonZero(col);
                        for(int i=0 ; i<480 ; ++i)
                             histograms.at<uchar>(x,i) = y;
                        CvPoint next = cvPoint(x,y);
                        cvLine(histogram,prev,next,cColor);
                        // cvCircle(histogram,next,2,cColor,3);
                        prev=next;
                }

                //Showing the images
                imshow("Live",img_bgr);
                imshow("Threshed",threshy);
                cvShowImage("Histogram",histogram);

                int c= cvWaitKey(10);

                if(c == 27)
                        break;
        }

        //Cleanup
        // cvReleaseImage(&frame);
        // cvReleaseImage(&threshy);
        // cvReleaseImage(&img_hsv);
        // cvReleaseImage(&labelImg);
        // cvReleaseImage(&histogram);
        cvDestroyAllWindows();
        return 0;
}