Get the json content from image with naver-clova-ix/donut-base-finetuned-docvqa

#4
by Joyantac33 - opened

I am using "naver-clova-ix/donut-base-finetuned-docvqa" model and want to print the full content of the result json after it reads the image without invoking any prompts or user input. I just want it to parse the image and give me the full json content. How can I achieve that, please help. I am using below code:

import re
import gradio as gr

import torch
from transformers import DonutProcessor, VisionEncoderDecoderModel

processor = DonutProcessor.from_pretrained("naver-clova-ix/donut-base-finetuned-docvqa")
model = VisionEncoderDecoderModel.from_pretrained("naver-clova-ix/donut-base-finetuned-docvqa")

device = "cuda" if torch.cuda.is_available() else "cpu"
model.to(device)

def process_document(image, question):

prepare encoder inputs

pixel_values = processor(image, return_tensors="pt").pixel_values
print(pixel_values)

prepare decoder inputs

task_prompt = "{user_input}"
prompt = task_prompt.replace("{user_input}", question)
decoder_input_ids = processor.tokenizer(prompt, add_special_tokens=False, return_tensors="pt").input_ids
print(decoder_input_ids)

generate answer

outputs = model.generate(
pixel_values.to(device),
decoder_input_ids=decoder_input_ids.to(device),
max_length=model.decoder.config.max_position_embeddings,
early_stopping=True,
pad_token_id=processor.tokenizer.pad_token_id,
eos_token_id=processor.tokenizer.eos_token_id,
use_cache=True,
num_beams=1,
bad_words_ids=[[processor.tokenizer.unk_token_id]],
return_dict_in_generate=True,
)

postprocess

sequence = processor.batch_decode(outputs.sequences)[0]
sequence = sequence.replace(processor.tokenizer.eos_token, "").replace(processor.tokenizer.pad_token, "")
sequence = re.sub(r"<.*?>", "", sequence, count=1).strip() # remove first task start token

json_content = processor.token2json(sequence)
print(json_content) # Print the full JSON content

return json_content
#return processor.token2json(sequence)
description = "Gradio Demo for Donut, an instance of VisionEncoderDecoderModel fine-tuned on DocVQA (document visual question answering). To use it, simply upload your image and type a question and click 'submit', or click one of the examples to load them. Read more at the links below."
article = "

Donut: OCR-free Document Understanding Transformer | Github Repo

"
demo = gr.Interface(
fn=process_document,
inputs=["image", "text"],
outputs="json",
title="Demo: Donut 🍩 for DocVQA",
description=description,
article=article,
enable_queue=True,
examples=[["example_1.png", "When is the coffee break?"], ["example_2.jpeg", "What's the population of Stoddard?"]],
cache_examples=False)

demo.launch()

Hi,

For that you need to use a model like https://huggingface.co/naver-clova-ix/donut-base-finetuned-cord-v2 (or fine-tune one yourself on a custom dataset).

Next, you just need to give the decoder start token as prompt and the model will generate the entire JSON.

See this notebook as an example: https://github.com/NielsRogge/Transformers-Tutorials/blob/master/Donut/CORD/Quick_inference_with_DONUT_for_Document_Parsing.ipynb.

Hi,

Thank you for the information. Can you help me like "dataset = load_dataset("hf-internal-testing/example-documents") "
what is the format of dataset to point to my custom folder like "hf-internal-testing/example-documents".

I am trying to train custom model but getting below error, can you help.

!python /content/donut/train.py --config /content/sample_data/train_cord.yaml

dataset_name_or_paths:

  • ../content/pan_set
    train_batch_sizes:
  • 1
    check_val_every_n_epochs: 10
    max_steps: -1
    result_path: /content/pan_set
    exp_name: train_cord
    exp_version: 20230630_083635
    Config is saved at /content/pan_set/train_cord/20230630_083635/config.yaml
    Traceback (most recent call last):
    File "/content/donut/train.py", line 149, in
    train(config)
    File "/content/donut/train.py", line 55, in train
    pl.utilities.seed.seed_everything(config.get("seed", 42), workers=True)
    AttributeError: module 'pytorch_lightning.utilities.seed' has no attribute 'seed_everything'

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