Update app.py

app.py

@@ -4,6 +4,7 @@ import paddlehub as hub
 import torch
 from huggingface_hub import hf_hub_download
 from transformers import pipeline
+from PIL import Image
 
 model_ernie = hub.Module(name="ernie_vilg")
 model_nllb = "facebook/nllb-200-distilled-600M"