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OpenCV Blob Detection (python) (irregular circles) !

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Hi, i'm working in an image processing task with OpenCV (pyhton). I'm processing a video to detect/track some LEDs information (position, color, etc,...) Here is a sample of a original frame, ![Original frame](/upfiles/1437797992742392.jpg) After filtering, currently the frames look like this: ![frames after filtering](/upfiles/14377980638426343.jpg) What i want is to detect all the leds, like illustrated in the next figure ![Desired](/upfiles/14377981104133999.jpg) Can anyone help me with some robust ideas to a general case? Thanks

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