Finding coordiantes in image using red dot

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I want to detect the coordinates of several red dots in an image. I am new to opencv and not sure what to use to achieve this. The image below is an example of what I am working with. There could be any number of red dots in an image. The goal of this is find the coordinate of these dots to make bounding boxes for training a YOLO neural network. If there is a better approach to take please let me know.