Unable to create tracker

Python
,
1

I am trying to track an object over time using opencv’s object tracking features. I can successfully read a graphic with imread() and display it with imshow() and select a target with selectROI(). But when I try to create a tracker with cv2.TrackerBoosting_create() it fails with error:

AttributeError: module ‘cv2’ has no attribute ‘TrackerBoosting_create’

I tried uninstalling opencv-python in favor of just opencv-contrib-python but then it failed much earlier, at my call to cv2.imread().

My source code is:

import cv2
import backgroundTarget as bt
import os
import datetime
import numpy as np


def fileLoop():
    fileList = sorted(os.listdir(path))
    print("fileList = " + str(fileList))
#    img = cv.imread('messi5.jpg', cv.IMREAD_GRAYSCALE)
#    img = cv2.imread(path + fileList[0], cv2.IMREAD_COLOR)
    frame = cv2.imread(path + fileList[0], cv2.IMREAD_COLOR)
    fileLoopIndex = 0
    startTimestamp = datetime.datetime.now()
#    outfile.writelines(str(startTimestamp))
       
    for currFile in fileList:
        name, ext = os.path.splitext(currFile)
        if ext == '.jpg':
#            img = cv2.imread(path + fileList[fileLoopIndex], cv2.IMREAD_COLOR)
            img = cv2.imread(path + fileList[fileLoopIndex], cv2.IMREAD_GRAYSCALE)
#            img = cv2.imread(path + fileList[fileLoopIndex], cv2.IMREAD_COLOR)
            cv2.imshow("image", img)
            detector = cv2.CascadeClassifier('haarcascade_frontalface_default.xml')
            bbox = cv2.selectROI(img, False)
            tracker_type = 'BOOSTING'
            
            (major_ver, minor_ver, subminor_ver) = (cv2.__version__).split('.')
            print(cv2.__version__)
            if int(major_ver) < 4 and int(minor_ver) < 3:
                tracker = cv2.cv2.Tracker_create(tracker_type)
            else:
            
                if tracker_type == 'BOOSTING':
                    tracker = cv2.TrackerBoosting_create()
                else:
                    print("else clause")
                   
            # Initialize tracker with first frame and bounding box
            ok = tracker.init(img, bbox)
            print(ok)
            # Define the tracking parameters
            tracker = cv2.TrackerKCF_create()



            cv2.waitKey(0)
            fileLoopIndex += 1
    
    return img

path = "../../Desktop/winter field/5 side/"

img = fileLoop()

cv2.destroyAllWindows()
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2

I am totally blocked on this. It appears to be a libraries issue. Can someone please answer my question? Thanks!

3

that stuff is in cv.legacy now.

1 Like
4

Yep that did it. It was a simple path fix. Off and running!

1 Like