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https://github.com/ocrmypdf/OCRmyPDF.git
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54 lines
1.3 KiB
Python
54 lines
1.3 KiB
Python
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# © 2020 James R Barlow: https://github.com/jbarlow83
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import logging
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from PIL import Image
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from ocrmypdf import hookimpl
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log = logging.getLogger(__name__)
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@hookimpl
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def add_options(parser):
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parser.add_argument('--grayscale-ocr', action='store_true')
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@hookimpl
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def prepare(options):
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pass
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@hookimpl
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def validate(pdfinfo, options):
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pass
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@hookimpl
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def filter_ocr_image(page, image):
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if page.options.grayscale_ocr:
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log.info("graying")
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return image.convert('L')
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return image
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@hookimpl
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def filter_page_image(page, image_filename):
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output = image_filename.with_suffix('.jpg')
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with Image.open(image_filename) as im:
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im.save(output)
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return output
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