Attributeerror: module ‘cv2.aruco’ has no attribute ‘estimateposesinglemarkers’

The error message “AttributeError: module ‘cv2.aruco’ has no attribute ‘estimatePoseSingleMarkers'” occurs when the attribute/property ‘estimatePoseSingleMarkers’ is not available in the ‘cv2.aruco’ module in the OpenCV library. This error typically happens when you are trying to access a non-existent attribute or when you have an outdated version of OpenCV installed.

To resolve this issue, you can do the following:

1. Update OpenCV: Make sure you have the latest version of OpenCV installed on your system. You can upgrade OpenCV by running the following command in your terminal or command prompt:

           pip install --upgrade opencv-python
         

2. Check for attribute availability: After updating OpenCV, check if the ‘estimatePoseSingleMarkers’ attribute is now available in the ‘cv2.aruco’ module by using the ‘dir()’ function:

           import cv2.aruco
           
           print(dir(cv2.aruco))
         

   Look for the ‘estimatePoseSingleMarkers’ attribute in the printed output. If it is not there, it means that the installed version of OpenCV does not have this attribute.

3. Alternative solution: If the ‘estimatePoseSingleMarkers’ attribute is still not available even after updating OpenCV, you can try using an alternative method or function to achieve your desired outcome. Check the OpenCV documentation or search for alternatives in the OpenCV community for similar functionality.