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https://github.com/opendatalab/MinerU.git
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myhloli
309be741e8
- Implement new text extraction method (txt_spans_extract_v2) to enhance accuracy - Add character filling in spans for better text reconstruction - Introduce empty span handling using OCR for missed text - Optimize span filtering and overlap removal
122 lines
3.9 KiB
Python
122 lines
3.9 KiB
Python
"""用户输入： model数组，每个元素代表一个页面 pdf在s3的路径 截图保存的s3位置.
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然后：
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1）根据s3路径，调用spark集群的api,拿到ak,sk,endpoint，构造出s3PDFReader
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2）根据用户输入的s3地址，调用spark集群的api,拿到ak,sk,endpoint，构造出s3ImageWriter
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其余部分至于构造s3cli, 获取ak,sk都在code-clean里写代码完成。不要反向依赖！！！
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"""
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from loguru import logger
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from magic_pdf.data.data_reader_writer import DataWriter
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from magic_pdf.libs.version import __version__
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from magic_pdf.model.doc_analyze_by_custom_model import doc_analyze
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from magic_pdf.pdf_parse_by_ocr import parse_pdf_by_ocr
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from magic_pdf.pdf_parse_by_txt import parse_pdf_by_txt
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PARSE_TYPE_TXT = 'txt'
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PARSE_TYPE_OCR = 'ocr'
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def parse_txt_pdf(pdf_bytes: bytes, pdf_models: list, imageWriter: DataWriter, is_debug=False,
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start_page_id=0, end_page_id=None, lang=None,
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*args, **kwargs):
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"""解析文本类pdf."""
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pdf_info_dict = parse_pdf_by_txt(
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pdf_bytes,
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pdf_models,
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imageWriter,
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start_page_id=start_page_id,
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end_page_id=end_page_id,
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debug_mode=is_debug,
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lang=lang,
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)
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pdf_info_dict['_parse_type'] = PARSE_TYPE_TXT
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pdf_info_dict['_version_name'] = __version__
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if lang is not None:
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pdf_info_dict['_lang'] = lang
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return pdf_info_dict
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def parse_ocr_pdf(pdf_bytes: bytes, pdf_models: list, imageWriter: DataWriter, is_debug=False,
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start_page_id=0, end_page_id=None, lang=None,
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*args, **kwargs):
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"""解析ocr类pdf."""
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pdf_info_dict = parse_pdf_by_ocr(
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pdf_bytes,
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pdf_models,
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imageWriter,
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start_page_id=start_page_id,
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end_page_id=end_page_id,
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debug_mode=is_debug,
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lang=lang,
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)
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pdf_info_dict['_parse_type'] = PARSE_TYPE_OCR
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pdf_info_dict['_version_name'] = __version__
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if lang is not None:
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pdf_info_dict['_lang'] = lang
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return pdf_info_dict
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def parse_union_pdf(pdf_bytes: bytes, pdf_models: list, imageWriter: DataWriter, is_debug=False,
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input_model_is_empty: bool = False,
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start_page_id=0, end_page_id=None, lang=None,
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*args, **kwargs):
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"""ocr和文本混合的pdf，全部解析出来."""
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def parse_pdf(method):
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try:
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return method(
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pdf_bytes,
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pdf_models,
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imageWriter,
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start_page_id=start_page_id,
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end_page_id=end_page_id,
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debug_mode=is_debug,
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lang=lang,
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)
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except Exception as e:
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logger.exception(e)
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return None
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pdf_info_dict = parse_pdf(parse_pdf_by_txt)
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if pdf_info_dict is None or pdf_info_dict.get('_need_drop', False):
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logger.warning('parse_pdf_by_txt drop or error, switch to parse_pdf_by_ocr')
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if input_model_is_empty:
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layout_model = kwargs.get('layout_model', None)
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formula_enable = kwargs.get('formula_enable', None)
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table_enable = kwargs.get('table_enable', None)
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pdf_models = doc_analyze(
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pdf_bytes,
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ocr=True,
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start_page_id=start_page_id,
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end_page_id=end_page_id,
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lang=lang,
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layout_model=layout_model,
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formula_enable=formula_enable,
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table_enable=table_enable,
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)
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pdf_info_dict = parse_pdf(parse_pdf_by_ocr)
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if pdf_info_dict is None:
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raise Exception('Both parse_pdf_by_txt and parse_pdf_by_ocr failed.')
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else:
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pdf_info_dict['_parse_type'] = PARSE_TYPE_OCR
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else:
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pdf_info_dict['_parse_type'] = PARSE_TYPE_TXT
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pdf_info_dict['_version_name'] = __version__
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if lang is not None:
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pdf_info_dict['_lang'] = lang
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return pdf_info_dict
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