6df8827231
* Fix: Add missing bbox attribute to PdfTextCell * Fix: Add missing bbox attribute to PdfTextCell Signed-off-by: hl2311 <dhlong2301@gmail.com> * fix: Refactor missing bbox attribute to PdfTextCell Signed-off-by: hl2311 <dhlong2301@gmail.com> * Signed-off-by: hl2311 <dhlong2301@gmail.com> fix: Refactor missing bbox attribute to PdfTextCell --------- Signed-off-by: hl2311 <dhlong2301@gmail.com>
90 lines
3.0 KiB
Python
90 lines
3.0 KiB
Python
from pathlib import Path
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from typing import Iterable, Optional
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from PIL import ImageDraw
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from pydantic import BaseModel
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from docling.datamodel.base_models import Page
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from docling.datamodel.document import ConversionResult
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from docling.datamodel.settings import settings
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from docling.models.base_model import BasePageModel
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from docling.utils.profiling import TimeRecorder
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class PagePreprocessingOptions(BaseModel):
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images_scale: Optional[float]
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create_parsed_page: bool
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class PagePreprocessingModel(BasePageModel):
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def __init__(self, options: PagePreprocessingOptions):
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self.options = options
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def __call__(
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self, conv_res: ConversionResult, page_batch: Iterable[Page]
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) -> Iterable[Page]:
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for page in page_batch:
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assert page._backend is not None
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if not page._backend.is_valid():
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yield page
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else:
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with TimeRecorder(conv_res, "page_parse"):
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page = self._populate_page_images(page)
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page = self._parse_page_cells(conv_res, page)
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yield page
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# Generate the page image and store it in the page object
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def _populate_page_images(self, page: Page) -> Page:
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# default scale
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page.get_image(
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scale=1.0
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) # puts the page image on the image cache at default scale
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images_scale = self.options.images_scale
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# user requested scales
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if images_scale is not None:
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page._default_image_scale = images_scale
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page.get_image(
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scale=images_scale
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) # this will trigger storing the image in the internal cache
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return page
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# Extract and populate the page cells and store it in the page object
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def _parse_page_cells(self, conv_res: ConversionResult, page: Page) -> Page:
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assert page._backend is not None
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page.cells = list(page._backend.get_text_cells())
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if self.options.create_parsed_page:
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page.parsed_page = page._backend.get_segmented_page()
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# DEBUG code:
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def draw_text_boxes(image, cells, show: bool = False):
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draw = ImageDraw.Draw(image)
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for c in cells:
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x0, y0, x1, y1 = (
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c.to_bounding_box().l,
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c.to_bounding_box().t,
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c.to_bounding_box().r,
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c.to_bounding_box().b,
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)
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draw.rectangle([(x0, y0), (x1, y1)], outline="red")
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if show:
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image.show()
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else:
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out_path: Path = (
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Path(settings.debug.debug_output_path)
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/ f"debug_{conv_res.input.file.stem}"
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)
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out_path.mkdir(parents=True, exist_ok=True)
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out_file = out_path / f"cells_page_{page.page_no:05}.png"
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image.save(str(out_file), format="png")
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if settings.debug.visualize_cells:
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draw_text_boxes(page.get_image(scale=1.0), page.cells)
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return page
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