fix the bug of output format

app.py

@@ -67,7 +67,7 @@ ocr_version = gr.inputs.Dropdown(choices=['PP-OCRv3', 'PP-OCRv2', 'PP-OCR'], typ
 gr.Interface(
     inference,
     [gr.inputs.Image(type='file', label='Input'), "checkbox", "checkbox", lang, ocr_version],
-    [gr.outputs.Image(type='file', label='Output'), gr.outputs.Textbox(type='str', label='Prediction')],
+    [gr.outputs.Image(type='pil', label='Output'), gr.outputs.Textbox(type='str', label='Prediction')],
     title=title,
     description=description,
     article=article,