Update app.py

app.py

@@ -1,11 +1,22 @@
 import streamlit as st
-from PIL import Image
+from PIL import Image, ImageDraw
 
 from streamlit_image_coordinates import streamlit_image_coordinates
 
 with Image.open("kitty.jpeg") as img:
     draw = ImageDraw.Draw(img)
 
+    def get_ellipse_coords(point: tuple[int, int]) -> tuple[int, int, int, int]:
+    center = point
+    radius = 10
+    return (
+        center[0] - radius,
+        center[1] - radius,
+        center[0] + radius,
+        center[1] + radius,
+    )
+
+
     # Draw an ellipse at each coordinate in points
     for point in st.session_state["points"]:
         coords = get_ellipse_coords(point)