1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
#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;
int main( int argc, char** argv ){
// show help
//! [help]
if(argc<2){
cout<<
" Usage: tracker <video_name>\n"
" examples:\n"
" example_tracking_kcf Bolt/img/%04d.jpg\n"
" example_tracking_kcf faceocc2.webm\n"
<< endl;
return 0;
}
//! [help]
// declares all required variables
//! [vars]
Rect2d roi;
Mat frame;
//! [vars]
// create a tracker object
//! [create]
Ptr<Tracker> tracker = TrackerKCF::create();
//! [create]
// set input video
//! [setvideo]
std::string video = argv[1];
VideoCapture cap(video);
//! [setvideo]
// get bounding box
//! [getframe]
cap >> frame;
//! [getframe]
//! [selectroi]
roi=selectROI("tracker",frame);
//! [selectroi]
//quit if ROI was not selected
if(roi.width==0 || roi.height==0)
return 0;
// initialize the tracker
//! [init]
tracker->init(frame,roi);
//! [init]
// perform the tracking process
printf("Start the tracking process, press ESC to quit.\n");
for ( ;; ){
// get frame from the video
cap >> frame;
// stop the program if no more images
if(frame.rows==0 || frame.cols==0)
break;
// update the tracking result
//! [update]
tracker->update(frame,roi);
//! [update]
//! [visualization]
// draw the tracked object
rectangle( frame, roi, Scalar( 255, 0, 0 ), 2, 1 );
// show image with the tracked object
imshow("tracker",frame);
//! [visualization]
//quit on ESC button
if(waitKey(1)==27)break;
}
return 0;
}