v3 to v4.

app.py

@@ -18,8 +18,8 @@ css = ".output_image, .input_image {height: 40rem !important; width: 100% !impor
 
 gr.Interface(
     inference,
-    [gr.Image(type='file_path', label='Input')],
-    [gr.Image(type='file_path', label='Feature Congestion Output Image'), gr.Textbox(label="Feature Congestion"), gr.Textbox(label="Subband Entropy")],
+    [gr.Image(type='filepath', label='Input')],
+    [gr.Image(type='filepath', label='Feature Congestion Output Image'), gr.Textbox(label="Feature Congestion"), gr.Textbox(label="Subband Entropy")],
     title=title,
     description=description,
     article=article,