Update speed.py

speed.py

@@ -7,3 +7,4 @@ def estimate_speed(points, fps=30, scale_px_per_meter=100):
     distance = np.linalg.norm(np.array([x1, y1]) - np.array([x0, y0])) / scale_px_per_meter
     time_sec = len(points) / fps
     return (distance / time_sec) * 3.6  # km/h
+