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42 #include "precomp.hpp"
43 #include "opencv2/contrib/hybridtracker.hpp"
47 CvMeanShiftTracker::CvMeanShiftTracker(CvMeanShiftTrackerParams _params) : params(_params)
51 CvMeanShiftTracker::~CvMeanShiftTracker()
55 void CvMeanShiftTracker::newTrackingWindow(Mat image, Rect selection)
58 int channels[] = { 0, 0 , 1, 1};
59 float hrange[] = { 0, 180 };
60 float srange[] = { 0, 1 };
61 const float* ranges[] = {hrange, srange};
63 cvtColor(image, hsv, COLOR_BGR2HSV);
64 inRange(hsv, Scalar(0, 30, MIN(10, 256)), Scalar(180, 256, MAX(10, 256)), mask);
66 hue.create(hsv.size(), CV_8UC2);
67 mixChannels(&hsv, 1, &hue, 1, channels, 2);
69 Mat roi(hue, selection);
70 Mat mskroi(mask, selection);
72 int chsize[] = {32, 32};
73 calcHist(&roi, 1, ch, mskroi, hist, 1, chsize, ranges);
74 normalize(hist, hist, 0, 255, CV_MINMAX);
76 prev_trackwindow = selection;
79 RotatedRect CvMeanShiftTracker::updateTrackingWindow(Mat image)
81 int channels[] = { 0, 0 , 1, 1};
82 float hrange[] = { 0, 180 };
83 float srange[] = { 0, 1 };
84 const float* ranges[] = {hrange, srange};
86 cvtColor(image, hsv, COLOR_BGR2HSV);
87 inRange(hsv, Scalar(0, 30, MIN(10, 256)), Scalar(180, 256, MAX(10, 256)), mask);
88 hue.create(hsv.size(), CV_8UC2);
89 mixChannels(&hsv, 1, &hue, 1, channels, 2);
91 calcBackProject(&hue, 1, ch, hist, backproj, ranges);
94 prev_trackbox = CamShift(backproj, prev_trackwindow, TermCriteria(CV_TERMCRIT_EPS | CV_TERMCRIT_ITER, 10, 1));
95 int cols = backproj.cols, rows = backproj.rows, r = (MIN(cols, rows) + 5) / 6;
96 prev_trackwindow = Rect(prev_trackwindow.x - r, prev_trackwindow.y - r, prev_trackwindow.x + r,
97 prev_trackwindow.y + r) & Rect(0, 0, cols, rows);
99 prev_center.x = (float)(prev_trackwindow.x + prev_trackwindow.width / 2);
100 prev_center.y = (float)(prev_trackwindow.y + prev_trackwindow.height / 2);
102 #ifdef DEBUG_HYTRACKER
103 ellipse(image, prev_trackbox, Scalar(0, 0, 255), 1, CV_AA);
106 return prev_trackbox;
109 Mat CvMeanShiftTracker::getHistogramProjection(int type)
111 Mat ms_backproj_f(backproj.size(), type);
112 backproj.convertTo(ms_backproj_f, type);
113 return ms_backproj_f;
116 void CvMeanShiftTracker::setTrackingWindow(Rect window)
118 prev_trackwindow = window;
121 Rect CvMeanShiftTracker::getTrackingWindow()
123 return prev_trackwindow;
126 RotatedRect CvMeanShiftTracker::getTrackingEllipse()
128 return prev_trackbox;
131 Point2f CvMeanShiftTracker::getTrackingCenter()