How to draw circle in realtion to aruco marker y axis?

Python
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2

Hi @Kiwi_gamer01 ,

May be cv::aruco::detectMarkers() is what you are looking for:
https://docs.opencv.org/4.5.1/d9/d6a/group__aruco.html#gab9159aa69250d8d3642593e508cb6baa

The corners output gives you the four corners of each detected marker.