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""" |
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Donut |
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Copyright (c) 2022-present NAVER Corp. |
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MIT License |
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https://github.com/clovaai/donut |
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""" |
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import argparse |
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import gradio as gr |
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import torch |
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from PIL import Image |
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from donut import DonutModel |
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def demo_process_vqa(input_img, question): |
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global pretrained_model, task_prompt, task_name |
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input_img = Image.fromarray(input_img) |
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user_prompt = task_prompt.replace("{user_input}", question) |
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output = pretrained_model.inference(input_img, prompt=user_prompt)["predictions"][0] |
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return output |
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def demo_process(input_img): |
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global pretrained_model, task_prompt, task_name |
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input_img = Image.fromarray(input_img) |
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output = pretrained_model.inference(image=input_img, prompt=task_prompt)["predictions"][0] |
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return output |
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if __name__ == "__main__": |
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parser = argparse.ArgumentParser() |
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parser.add_argument("--task", type=str, default="cord-v2") |
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parser.add_argument("--pretrained_path", type=str, default="naver-clova-ix/donut-base-finetuned-cord-v2") |
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parser.add_argument("--port", type=int, default=None) |
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parser.add_argument("--url", type=str, default=None) |
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parser.add_argument("--sample_img_path", type=str, default="./sample_image_cord_test_receipt_00004.png") |
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args, left_argv = parser.parse_known_args() |
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task_name = args.task |
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if "docvqa" == task_name: |
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task_prompt = "<s_docvqa><s_question>{user_input}</s_question><s_answer>" |
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else: |
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task_prompt = f"<s_{task_name}>" |
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example_sample = [] |
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if args.sample_img_path: |
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image = Image.open(args.sample_img_path) |
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image.save("cord_sample_receipt.png") |
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example_sample.append("cord_sample_receipt.png") |
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pretrained_model = DonutModel.from_pretrained(args.pretrained_path) |
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pretrained_model.encoder.to(torch.bfloat16) |
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pretrained_model.eval() |
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demo = gr.Interface( |
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fn=demo_process_vqa if task_name == "docvqa" else demo_process, |
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inputs=["image", "text"] if task_name == "docvqa" else "image", |
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outputs="json", |
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title=f"Donut 🍩 demonstration for `{task_name}` task", |
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examples=[example_sample] if example_sample else None, |
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) |
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demo.launch(server_name=args.url, server_port=args.port) |
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