Update app.py

app.py

@@ -308,7 +308,7 @@ def add_boxes_norm_path(filepath, boxes):
     print(img.shape)
     print(np.sum(boxes))
     print(boxes.shape)
-    img[boxes] = 1 
+    img = np.where(boxes>0, boxes, img)
 
     fpath, fext = os.path.splitext(filepath)
     filepath = fpath + '_with_boxes'+'.png'