0604

1 files changed, 83 insertions, 23 deletions

diff --git a/cv/tracker/object_tracker.py b/cv/tracker/object_tracker.py
index 315ffa3..7c99145 100644
--- a/cv/tracker/object_tracker.py
+++ b/cv/tracker/object_tracker.py
@@ -1,35 +1,95 @@
 import cv2
+import sys
 
-cap = cv2.VideoCapture(0)
+(major_ver, minor_ver, subminor_ver) = (cv2.__version__).split('.')
 
-tracker = cv2.TrackerGOTURN_create()
-success, img = cap.read()
+if __name__ == '__main__':
 
-# select a bounding box ( ROI )
-bbox = cv2.selectROI("Tracking", img, False)
-tracker.init(img, bbox)
+    # Set up tracker.
+    # Instead of MIL, you can also use
 
+    tracker_types = ['BOOSTING', 'MIL', 'KCF', 'TLD', 'MEDIANFLOW', 'GOTURN', 'MOSSE', 'CSRT']
+    tracker_type = tracker_types[2]
 
-def drawBox(img, bbox):
-    x, y, w, h = int(bbox[0]), int(bbox[1]), int(bbox[2]), int(bbox[3])
-    cv2.rectangle(img, (x, y), (x + w, y + h), (255, 0, 255), 3, 1)
-    cv2.putText(img, "Tracking", (75, 75), cv2.FONT_HERSHEY_SIMPLEX, 0.7, (0, 255, 0), 2)
+    if int(minor_ver) < 3:
+        tracker = cv2.Tracker_create(tracker_type)
+    else:
+        if tracker_type == 'BOOSTING':
+            tracker = cv2.TrackerBoosting_create()
+        if tracker_type == 'MIL':
+            tracker = cv2.TrackerMIL_create()
+        if tracker_type == 'KCF':
+            tracker = cv2.TrackerKCF_create()
+        if tracker_type == 'TLD':
+            tracker = cv2.TrackerTLD_create()
+        if tracker_type == 'MEDIANFLOW':
+            tracker = cv2.TrackerMedianFlow_create()
+        if tracker_type == 'GOTURN':
+            tracker = cv2.TrackerGOTURN_create()
+        if tracker_type == 'MOSSE':
+            tracker = cv2.TrackerMOSSE_create()
+        if tracker_type == "CSRT":
+            tracker = cv2.TrackerCSRT_create()
 
+    # Read video
+    video = cv2.VideoCapture("./video.avi")
 
-while True:
-    timer = cv2.getTickCount()
-    success, img = cap.read()
+    # Exit if video not opened.
+    if not video.isOpened():
+        print
+        "Could not open video"
+        sys.exit()
 
-    success, bbox = tracker.update(img)
+    # Read first frame.
+    ok, frame = video.read()
+    if not ok:
+        print
+        'Cannot read video file'
+        sys.exit()
 
-    if success:
-        drawBox(img, bbox)
-    else:
-        cv2.putText(img, "Loss", (75, 75), cv2.FONT_HERSHEY_SIMPLEX, 0.7, (0, 0, 255), 2)
+    # Define an initial bounding box
+    bbox = (287, 23, 86, 320)
+
+    # Uncomment the line below to select a different bounding box
+    bbox = cv2.selectROI(frame, False)
+
+    # Initialize tracker with first frame and bounding box
+    ok = tracker.init(frame, bbox)
+
+    while True:
+        # Read a new frame
+        ok, frame = video.read()
+        if not ok:
+            break
+
+        # Start timer
+        timer = cv2.getTickCount()
+
+        # Update tracker
+        ok, bbox = tracker.update(frame)
+
+        # Calculate Frames per second (FPS)
+        fps = cv2.getTickFrequency() / (cv2.getTickCount() - timer);
+
+        # Draw bounding box
+        if ok:
+            # Tracking success
+            p1 = (int(bbox[0]), int(bbox[1]))
+            p2 = (int(bbox[0] + bbox[2]), int(bbox[1] + bbox[3]))
+            cv2.rectangle(frame, p1, p2, (255, 0, 0), 2, 1)
+        else:
+            # Tracking failure
+            cv2.putText(frame, "Tracking failure detected", (100, 80), cv2.FONT_HERSHEY_SIMPLEX, 0.75, (0, 0, 255), 2)
+
+        # Display tracker type on frame
+        cv2.putText(frame, tracker_type + " Tracker", (100, 20), cv2.FONT_HERSHEY_SIMPLEX, 0.75, (50, 170, 50), 2);
+
+        # Display FPS on frame
+        cv2.putText(frame, "FPS : " + str(int(fps)), (100, 50), cv2.FONT_HERSHEY_SIMPLEX, 0.75, (50, 170, 50), 2);
 
-    fps = cv2.getTickFrequency() / (cv2.getTickCount() - timer)
-    cv2.putText(img, str(int(fps)), (75, 50), cv2.FONT_HERSHEY_SIMPLEX, 0.7, (0, 0, 255), 2)
-    cv2.imshow("Tracking", img)
+        # Display result
+        cv2.imshow("Tracking", frame)
 
-    if cv2.waitKey(1) & 0xff == ord('q'):
-        break
\ No newline at end of file
+        # Exit if ESC pressed
+        k = cv2.waitKey(1) & 0xff
+        if k == 27: break