Python opencv Aruco "No module named 'cv2.aruco'"

Question

I am running an Ubuntu virtual machine with, Python 3.6.1, Anaconda 4.4.0 (64-bit). I am trying to run the code on this website. When I try to use

import cv2.aruco

I get:

>>> import cv2.aruco Traceback (most recent call last):   File "<stdin>", line 1, in <module> ModuleNotFoundError: No module named 'cv2.aruco' 

Is this something I need to install or setup?

Answer 1

If cv2.aruco is not found, try installing opencv-contrib-python, such as by running the following (for the default Python installation):

pip install opencv-contrib-python 

Or for a specific Python installation (in this case Python 3)

python3 -m pip install opencv-contrib-python 

Then try re-running the script trying to access cv2.aruco.

Answer 2

If cv2.aruco is not found, first make sure that opencv-python is not installed.

for that you can use:

pip uninstall opencv-python 

Then install:

pip install opencv-contrib-python 

We are uninstalling opencv-python because installing two packages of opencv will contradict each other and will not let the other one install.