Handle both normalized and denormalized coords in overlay bbox (#115)

instead of tool description fixed the code to handle both normalized and denormalized cases

vision_agent/tools/tools.py

@@ -647,12 +647,9 @@ def overlay_bounding_boxes(
  box = elt["bbox"]
  scores = elt["score"]
 
- box = [
- int(box[0] * width),
- int(box[1] * height),
- int(box[2] * width),
- int(box[3] * height),
- ]
+ # denormalize the box if it is normalized
+ box = denormalize_bbox(box, (height, width))
+
  draw.rectangle(box, outline=color[label], width=4)
  text = f"{label}: {scores:.2f}"
  text_box = draw.textbbox((box[0], box[1]), text=text, font=font)