Update app.py

app.py

@@ -37,7 +37,9 @@ def visualize_instance_seg_mask(mask):
             image[i, j, :] = label2color[mask[i, j]]
 
     window_vertices = np.array([[x, 0, -y] for x, y in floor])
-        # Perform Delaunay triangulation
+    unique_vertices, indices = np.unique(window_vertices, axis=0, return_inverse=True)
+
+    # Perform Delaunay triangulation
     tri = Delaunay(window_vertices[:, :2])  # Triangulate only based on x and y coordinates
     
     # Extract indices