i have tried running TLD which is builtin in opencv 3 + contrib module , but this code seems to work really slow for TLD
include <opencv2 core="" utility.hpp="">
include <opencv2 tracking.hpp="">
include <opencv2 videoio.hpp="">
include <opencv2 highgui.hpp="">
include <iostream>
include <cstring>
using namespace std; using namespace cv;
static Mat image; static Rect2d boundingBox; static bool paused; static bool selectObject = false; static bool startSelection = false;
static const char* keys = { "{@tracker_algorithm | | Tracker algorithm }" "{@video_name | | video name }" "{@start_frame |0| Start frame }" "{@bounding_frame |0,0,0,0| Initial bounding frame}"};
static void onMouse( int event, int x, int y, int, void* ) { if( !selectObject ) { switch ( event ) { case EVENT_LBUTTONDOWN: //set origin of the bounding box startSelection = true; boundingBox.x = x; boundingBox.y = y; boundingBox.width = boundingBox.height = 0; break; case EVENT_LBUTTONUP: //sei with and height of the bounding box boundingBox.width = std::abs( x - boundingBox.x ); boundingBox.height = std::abs( y - boundingBox.y ); paused = false; selectObject = true; break; case EVENT_MOUSEMOVE:
if( startSelection && !selectObject )
{
//draw the bounding box
Mat currentFrame;
image.copyTo( currentFrame );
rectangle( currentFrame, Point((int) boundingBox.x, (int)boundingBox.y ), Point( x, y ), Scalar( 255, 0, 0 ), 2, 1 );
imshow( "Tracking API", currentFrame );
}
break;
}
} }
static void help() { cout << "\nThis example shows the functionality of \"Long-term optical tracking API\"" "-- pause video [p] and draw a bounding box around the target to start the tracker\n" "Example of <video_name> is in opencv_extra/testdata/cv/tracking/\n" "Call:\n" "./tracker <tracker_algorithm> <video_name> <start_frame> [<bounding_frame>]\n" << endl;
cout << "\n\nHot keys: \n" "\tq - quit the program\n" "\tp - pause video\n"; }
int main( int argc, char** argv ) { //open the capture VideoCapture cap(0); if( !cap.isOpened() ) { return -1; }
//
// "MIL", "BOOSTING", "MEDIANFLOW", "TLD"
//
string tracker_algorithm = "MIL";
if ( argc>1 ) tracker_algorithm = argv[1];
Mat frame;
paused = false;
namedWindow( "Tracking API", 0 );
setMouseCallback( "Tracking API", onMouse, 0 );
Ptr<Tracker> tracker = Tracker::create( tracker_algorithm );
if( tracker == NULL )
{
cout << "***Error in the instantiation of the tracker...***\n";
return -1;
}
//get the first frame
cap >> frame;
frame.copyTo( image );
imshow( "Tracking API", image );
bool initialized = false;
int frameCounter = 0;
for ( ;; )
{
char c = (char) waitKey( 2 );
if( c == 'q' || c == 27 )
break;
if( c == 'p' )
paused = !paused;
if ( !paused )
{
cap >> frame;
if(frame.empty())
{
break;
}
frame.copyTo( image );
if( selectObject )
{
if( !initialized )
{
//initializes the tracker
if( !tracker->init( frame, boundingBox ) )
{
cout << "***Could not initialize tracker...***\n";
return -1;
}
initialized = true;
}
else
{
//updates the tracker
if( tracker->update( frame, boundingBox ) )
{
rectangle( image, boundingBox, Scalar( 255, 0, 0 ), 2, 1 );
}
}
}
imshow( "Tracking API", image );
frameCounter++;
}
}
return 0;
} Is there any way to speed it up , by changing its parameters or anything else. Help neeeded . THNX in advance