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62 lines
2.8 KiB
Python
62 lines
2.8 KiB
Python
from typing import Optional
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from ocrd.processor.ocrd_page_result import OcrdPageResult
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from ocrd_models import OcrdPage
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from ocrd import Processor
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from .eynollah import Eynollah
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class EynollahProcessor(Processor):
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@property
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def metadata_filename(self) -> str:
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return 'eynollah/ocrd-tool.json'
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def setup(self) -> None:
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# for caching models
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self.models = None
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if self.parameter['textline_light'] and not self.parameter['light_mode']:
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raise ValueError("Error: You set parameter 'textline_light' to enable light textline detection but parameter 'light_mode' is not enabled")
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def process_page_pcgts(self, *input_pcgts: Optional[OcrdPage], page_id: Optional[str] = None) -> OcrdPageResult:
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assert input_pcgts
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assert input_pcgts[0]
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assert self.parameter
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pcgts = input_pcgts[0]
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page = pcgts.get_Page()
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# if not('://' in page.imageFilename):
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# image_filename = next(self.workspace.mets.find_files(local_filename=page.imageFilename)).local_filename
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# else:
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# # could be a URL with file:// or truly remote
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# image_filename = self.workspace.download_file(next(self.workspace.mets.find_files(url=page.imageFilename))).local_filename
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# XXX loses DPI information
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page_image, _, _ = self.workspace.image_from_page(
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page, page_id,
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# avoid any features that would change the coordinate system: cropped,deskewed
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# (the PAGE builder merely adds regions, so afterwards we would not know which to transform)
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# also avoid binarization as models usually fare better on grayscale/RGB
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feature_filter='cropped,deskewed,binarized')
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eynollah = Eynollah(
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self.resolve_resource(self.parameter['models']),
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self.logger,
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allow_enhancement=self.parameter['allow_enhancement'],
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curved_line=self.parameter['curved_line'],
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light_version=self.parameter['light_mode'],
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right2left=self.parameter['right_to_left'],
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ignore_page_extraction=self.parameter['ignore_page_extraction'],
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textline_light=self.parameter['textline_light'],
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full_layout=self.parameter['full_layout'],
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allow_scaling=self.parameter['allow_scaling'],
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headers_off=self.parameter['headers_off'],
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tables=self.parameter['tables'],
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override_dpi=self.parameter['dpi'],
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pcgts=pcgts,
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image_filename=page.imageFilename,
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image_pil=page_image
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)
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if self.models is not None:
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# reuse loaded models from previous page
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eynollah.models = self.models
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eynollah.run()
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self.models = eynollah.models
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return OcrdPageResult(pcgts)
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