Update app.py

app.py

@@ -4,7 +4,7 @@ import skimage.io
 import numpy as np # linear algebra
 import pandas as pd # data processing, CSV file I/O (e.g. pd.read_csv)
 import gradio as gr
-
+from PIL import Image
 import torch
 import torch.nn as nn
 import torch.nn.functional as F