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| #-*- coding: UTF-8 -*- | |
| # Copyright 2022 the HuggingFace Team. | |
| # Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved. | |
| # | |
| # Licensed under the Apache License, Version 2.0 (the "License"); | |
| # you may not use this file except in compliance with the License. | |
| # You may obtain a copy of the License at | |
| # | |
| # http://www.apache.org/licenses/LICENSE-2.0 | |
| # | |
| # Unless required by applicable law or agreed to in writing, software | |
| # distributed under the License is distributed on an "AS IS" BASIS, | |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| # See the License for the specific language governing permissions and | |
| # limitations under the License. | |
| import traceback | |
| import base64 | |
| import gradio as gr | |
| import cv2 | |
| from paddlenlp import Taskflow | |
| from paddlenlp.utils.doc_parser import DocParser | |
| doc_parser = DocParser() | |
| task_instance = Taskflow( | |
| "information_extraction", | |
| model="uie-x-base", | |
| task_path="PaddlePaddle/uie-x-base", | |
| from_hf_hub=True) | |
| examples = [ | |
| [ | |
| "business_card.png", | |
| "Name;Title;Web Link;Email;Address", | |
| ], | |
| [ | |
| "license.jpeg", | |
| "Name;DOB;ISS;EXP", | |
| ], | |
| [ | |
| "statements.png", | |
| "Date|Gross profit", | |
| ], | |
| [ | |
| "invoice.jpeg", | |
| "名称;纳税人识别号;开票日期", | |
| ], | |
| [ | |
| "custom.jpeg", | |
| "收发货人;进口口岸;进口日期;运输方式;征免性质;境内目的地;运输工具名称;包装种类;件数;合同协议号" | |
| ], | |
| [ | |
| "resume.png", | |
| "职位;年龄;学校|时间;学校|专业", | |
| ], | |
| ] | |
| example_files = { | |
| "Name;Title;Web Link;Email;Address": "business_card.png", | |
| "Name;DOB;ISS;EXP": "license.jpeg", | |
| "Date|Gross profit": "statements.png", | |
| "职位;年龄;学校|时间;学校|专业": "resume.png", | |
| "收发货人;进口口岸;进口日期;运输方式;征免性质;境内目的地;运输工具名称;包装种类;件数;合同协议号": "custom.jpeg", | |
| "名称;纳税人识别号;开票日期": "invoice.jpeg", | |
| } | |
| lang_map = { | |
| "resume.png": "ch", | |
| "custom.jpeg": "ch", | |
| "business_card.png": "en", | |
| "invoice.jpeg": "ch", | |
| "license.jpeg": "en", | |
| "statements.png": "en", | |
| } | |
| def dbc2sbc(s): | |
| rs = "" | |
| for char in s: | |
| code = ord(char) | |
| if code == 0x3000: | |
| code = 0x0020 | |
| else: | |
| code -= 0xfee0 | |
| if not (0x0021 <= code and code <= 0x7e): | |
| rs += char | |
| continue | |
| rs += chr(code) | |
| return rs | |
| def np2base64(image_np): | |
| image = cv2.imencode('.jpg', image_np)[1] | |
| base64_str = str(base64.b64encode(image))[2:-1] | |
| return base64_str | |
| def process_path(path): | |
| error = None | |
| if path: | |
| try: | |
| if path.endswith(".pdf"): | |
| images_list = [doc_parser.read_pdf(path)] | |
| else: | |
| images_list = [doc_parser.read_image(path)] | |
| return ( | |
| path, | |
| gr.update(visible=True, value=images_list), | |
| gr.update(visible=True), | |
| gr.update(visible=False, value=None), | |
| gr.update(visible=False, value=None), | |
| None, | |
| ) | |
| except Exception as e: | |
| traceback.print_exc() | |
| error = str(e) | |
| return ( | |
| None, | |
| gr.update(visible=False, value=None), | |
| gr.update(visible=False), | |
| gr.update(visible=False, value=None), | |
| gr.update(visible=False, value=None), | |
| gr.update(visible=True, value=error) if error is not None else None, | |
| None, | |
| ) | |
| def process_upload(file): | |
| if file: | |
| return process_path(file.name) | |
| else: | |
| return ( | |
| None, | |
| gr.update(visible=False, value=None), | |
| gr.update(visible=False), | |
| gr.update(visible=False, value=None), | |
| gr.update(visible=False, value=None), | |
| None, | |
| ) | |
| def get_schema(schema_str): | |
| def _is_ch(s): | |
| for ch in s: | |
| if "\u4e00" <= ch <= "\u9fff": | |
| return True | |
| return False | |
| schema_lang = "ch" if _is_ch(schema_str) else "en" | |
| schema = schema_str.split(";") | |
| schema_list = [] | |
| for s in schema: | |
| cand = s.split("|") | |
| if len(cand) == 1: | |
| schema_list.append(cand[0]) | |
| else: | |
| subject = cand[0] | |
| relations = cand[1:] | |
| added = False | |
| for a in schema_list: | |
| if isinstance(a, dict): | |
| if subject in a.keys(): | |
| a[subject].extend(relations) | |
| added = True | |
| break | |
| if not added: | |
| a = {subject: relations} | |
| schema_list.append(a) | |
| return schema_list, schema_lang | |
| def run_taskflow(document, schema, argument): | |
| task_instance.set_schema(schema) | |
| task_instance.set_argument(argument) | |
| return task_instance({'doc': document}) | |
| def process_doc(document, schema, ocr_lang, layout_analysis): | |
| if [document, schema] in examples: | |
| ocr_lang = lang_map[document] | |
| if not schema: | |
| schema = '时间;组织机构;人物' | |
| if document is None: | |
| return None, None | |
| layout_analysis = True if layout_analysis == "yes" else False | |
| schema, schema_lang = get_schema(dbc2sbc(schema)) | |
| argument = { | |
| "ocr_lang": ocr_lang, | |
| "schema_lang": schema_lang, | |
| "layout_analysis": layout_analysis | |
| } | |
| prediction = run_taskflow(document, schema, argument)[0] | |
| if document.endswith(".pdf"): | |
| _image = doc_parser.read_pdf(document) | |
| else: | |
| _image = doc_parser.read_image(document) | |
| img_show = doc_parser.write_image_with_results( | |
| np2base64(_image), | |
| result=prediction, | |
| return_image=True) | |
| img_list = [img_show] | |
| return ( | |
| gr.update(visible=True, value=img_list), | |
| gr.update(visible=True, value=prediction), | |
| ) | |
| def load_example_document(img, schema, ocr_lang, layout_analysis): | |
| if img is not None: | |
| document = example_files[schema] | |
| choice = lang_map[document].split("-") | |
| ocr_lang = choice[0] | |
| preview, answer = process_doc(document, schema, ocr_lang, layout_analysis) | |
| return document, schema, preview, gr.update(visible=True), answer | |
| else: | |
| return None, None, None, gr.update(visible=False), None | |
| def read_content(file_path: str) -> str: | |
| """read the content of target file | |
| """ | |
| with open(file_path, 'r', encoding='utf-8') as f: | |
| content = f.read() | |
| return content | |
| with gr.Blocks() as demo: | |
| gr.HTML(read_content("header.html")) | |
| gr.Markdown( | |
| "Open-sourced by PaddleNLP, **UIE-X** is a universal information extraction engine for both scanned document and text inputs. It supports Entity Extraction, Relation Extraction and Event Extraction tasks. " | |
| "UIE-X performs well on a zero-shot settings, which is enabled by a flexible schema that allows you to specify extraction targets with simple natural language. " | |
| "Moreover, on PaddleNLP, we provide a comprehensive and easy-to-use fine-tuning and few-shot customization workflow. <br>" | |
| "Want to dive deeper? Check out our [AIStudio Notebook](https://aistudio.baidu.com/aistudio/projectdetail/5261592) and [Colab Notebook](https://colab.research.google.com/drive/1ZY_ELZgoemJNoa6baWpgtzebLgoCT8MK?usp=sharing). " | |
| "For more details, please visit our [GitHub](https://github.com/PaddlePaddle/PaddleNLP/tree/develop/applications/information_extraction/README_en.md)" | |
| ) | |
| document = gr.Variable() | |
| is_text = gr.Variable() | |
| example_schema = gr.Textbox(visible=False) | |
| example_image = gr.Image(visible=False) | |
| with gr.Row(equal_height=True): | |
| with gr.Column(): | |
| with gr.Row(): | |
| gr.Markdown("## 1. Select a file 选择文件", elem_id="select-a-file") | |
| img_clear_button = gr.Button( | |
| "Clear", variant="secondary", elem_id="file-clear", visible=False | |
| ) | |
| image = gr.Gallery(visible=False) | |
| with gr.Row(equal_height=True): | |
| with gr.Column(): | |
| with gr.Row(): | |
| url = gr.Textbox( | |
| show_label=False, | |
| placeholder="URL", | |
| lines=1, | |
| max_lines=1, | |
| elem_id="url-textbox", | |
| ) | |
| submit = gr.Button("Get") | |
| url_error = gr.Textbox( | |
| visible=False, | |
| elem_id="url-error", | |
| max_lines=1, | |
| interactive=False, | |
| label="Error", | |
| ) | |
| gr.Markdown("## <center> — or — </center>") | |
| upload = gr.File(label=None, interactive=True, elem_id="short-upload-box") | |
| gr.Examples( | |
| examples=examples, | |
| inputs=[example_image, example_schema], | |
| ) | |
| with gr.Column(): | |
| gr.Markdown("## 2. Information Extraction 信息抽取 ") | |
| gr.Markdown("### 👉 Set a schema 设置schema") | |
| gr.Markdown("Entity extraction: entity type should be separated by ';', e.g. **Person;Organization**") | |
| gr.Markdown("实体抽取：实体类别之间以';'分割，例如 **人物；组织机构**") | |
| gr.Markdown("Relation extraction: set the subject and relation type, separated by '|', e.g. **Person|Date;Person|Email**") | |
| gr.Markdown("关系抽取：需配置主体和关系类别，中间以'|'分割，例如 **人物|出生时间；人物|邮箱**") | |
| gr.Markdown("### 👉 Model customization 模型定制") | |
| gr.Markdown("We recommend to further improve the extraction performance in specific domain through the process of [data annotation & fine-tuning](https://github.com/PaddlePaddle/PaddleNLP/tree/develop/applications/information_extraction/document/README_en.md)") | |
| gr.Markdown("我们建议通过[数据标注+微调](https://github.com/PaddlePaddle/PaddleNLP/tree/develop/applications/information_extraction/document/README_en.md)的流程进一步增强模型在特定场景的效果") | |
| schema = gr.Textbox( | |
| label="Schema", | |
| placeholder="e.g. Name|Company;Name|Position;Email;Phone Number", | |
| lines=1, | |
| max_lines=1, | |
| ) | |
| ocr_lang = gr.Radio( | |
| choices=["ch", "en"], | |
| value="en", | |
| label="OCR语言 / OCR Language (Please choose ch for Chinese images.)", | |
| ) | |
| layout_analysis = gr.Radio( | |
| choices=["yes", "no"], | |
| value="no", | |
| label="版面分析 / Layout analysis (Better extraction for multi-line text)", | |
| ) | |
| with gr.Row(): | |
| clear_button = gr.Button("Clear", variant="secondary") | |
| submit_button = gr.Button( | |
| "Submit", variant="primary", elem_id="submit-button" | |
| ) | |
| with gr.Column(): | |
| output = gr.JSON(label="Output", visible=False) | |
| for cb in [img_clear_button, clear_button]: | |
| cb.click( | |
| lambda _: ( | |
| gr.update(visible=False, value=None), | |
| None, | |
| gr.update(visible=False, value=None), | |
| gr.update(visible=False), | |
| None, | |
| None, | |
| None, | |
| gr.update(visible=False, value=None), | |
| None, | |
| ), | |
| inputs=clear_button, | |
| outputs=[ | |
| image, | |
| document, | |
| output, | |
| img_clear_button, | |
| example_image, | |
| upload, | |
| url, | |
| url_error, | |
| schema, | |
| ], | |
| ) | |
| upload.change( | |
| fn=process_upload, | |
| inputs=[upload], | |
| outputs=[document, image, img_clear_button, output, url_error], | |
| ) | |
| submit.click( | |
| fn=process_path, | |
| inputs=[url], | |
| outputs=[document, image, img_clear_button, output, url_error], | |
| ) | |
| schema.submit( | |
| fn=process_doc, | |
| inputs=[document, schema, ocr_lang, layout_analysis], | |
| outputs=[image, output], | |
| ) | |
| submit_button.click( | |
| fn=process_doc, | |
| inputs=[document, schema, ocr_lang, layout_analysis], | |
| outputs=[image, output], | |
| ) | |
| example_image.change( | |
| fn=load_example_document, | |
| inputs=[example_image, example_schema, ocr_lang, layout_analysis], | |
| outputs=[document, schema, image, img_clear_button, output], | |
| ) | |
| gr.HTML(read_content("footer.html")) | |
| if __name__ == "__main__": | |
| demo.launch(enable_queue=False) | |