How To Add "tracker" In Opencv Python 2.7
Solution 1:
Just install opencv-contrib-python
pip install opencv-contrib-python
and it will work !
Solution 2:
I think the easiest and fastest method is to install via the .whl files. @foobar gives the answer in the post @kyjanond links to, but you can obtain the .whl files from the following links.
OpenCV: https://pypi.python.org/pypi/opencv-python/3.3.0.10
OpenCV Contrib: https://pypi.python.org/pypi/opencv-contrib-python/3.3.0.10
I installed OpenCV 3.3.0 on Python 2.7, so I downloaded:
- opencv_python-3.3.0.10-cp27-cp27m-win32.whl
- opencv_contrib_python-3.3.0.10-cp27-cp27m-win32.whl
To install, I ran:
- python -m pip install opencv_python-3.3.0.10-cp27-cp27m-win32.whl
- python -m pip install opencv_contrib_python-3.3.0.10-cp27-cp27m-win32.whl
This worked, but in the updated version of OpenCV, the way the tracker functions are called have changed.
The original code in the GitHub repository was:
tracker_types = ['BOOSTING', 'MIL','KCF', 'TLD', 'MEDIANFLOW', 'GOTURN']
tracker_type = tracker_types[1]
tracker = cv2.Tracker_create(tracker_type)
I changed this to
tracker_types = ['BOOSTING', 'MIL','KCF', 'TLD', 'MEDIANFLOW', 'GOTURN']
tracker_type = tracker_types[1]
iftracker_type== tracker_types[0]:
tracker = cv2.TrackerBoosting_create()
eliftracker_type== tracker_types[1]:
tracker = cv2.TrackerMIL_create()
eliftracker_type== tracker_types[2]:
tracker = cv2.TrackerKCF_create()
eliftracker_type== tracker_types[3]:
tracker = cv2.TrackerTLD_create()
eliftracker_type== tracker_types[4]:
tracker = cv2.TrackerMedianFlow_create()
eliftracker_type== tracker_types[5]:
tracker = cv2.TrackerGOTURN_create()
This approach seemed to work well for me.
Solution 3:
It looks like you didn't compile your OpenCV with opencv_contrib modules. You have to recompile it. You can find a very good step-by-step tutorial how to do that in this blogpost.
EDIT:
If you need to compile it on Windows you can use this great tutorial by @Osama
Hope it helps.
Solution 4:
Once Installation is over. All files are installed in
/usr/local/
folder.
But to use it, your Python should be able to find
OpenCV
module.
You have two options for that.
Move the module to any folder in Python Path: Python path can be found out by entering
import sys;print sys.path
in Python terminal. It will print out many locations. Move/usr/local/lib/python2.7/site-packages/cv2.so
to any of this folder. For example,su mv /usr/local/lib/python2.7/site-packages/cv2.so /usr/lib/python2.7/
→ site-packages. But you will have to do this every time you installOpenCV
.Add
/usr/local/lib/python2.7/site-packages
to thePYTHON_PATH
: It is to be done only once. Just open~/.bashrc
and add following line to it, then log out and come back.export PYTHONPATH=$PYTHONPATH:/usr/local/lib/python2.7/site-packages
. Thus OpenCV installation is finished. Open a terminal and try import cv2.
Solution 5:
New versions of openCV use for example: TrackerKCF_create() notation.
You can find new examples here
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