opencv for robot

  1. Check out the examples on the OpenCV page. They show you how to lock on to colors and how to track them while giving your bot the coordinates of the error off your target. If that is not clear, check out Random Nerd Tutorials for an ESP CAM version.

  2. Use aruco markers in opencv, if the predefined shapes do not suite you, you can download their source code and build your own markers.

  3. If they are all the same color, A filter will make it a really achievable goal. If they are varying colors and different shapes that are predefined, I think it gets more complex and I would not know where to begin. Some of the other comments here seem to address identifying different shapes though.

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