{
  "image_path": "path/to/image.png",
  "polarity": "Bright",
  "radius_hint": 30.0,
  "frst": {
    "radii": [20, 25, 30, 35, 40],
    "alpha": 2.0,
    "gradient_threshold": 3.0,
    "smoothing_factor": 0.5
  },
  "nms": {
    "radius": 20,
    "threshold": 0.01,
    "max_detections": 5
  }
}
