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eynollah/qurator/eynollah/processor.py

69 lines
2.8 KiB
Python

from json import loads
from pkg_resources import resource_string
from tempfile import NamedTemporaryFile
from pathlib import Path
from os.path import join
from PIL import Image
from ocrd import Processor
from ocrd_modelfactory import page_from_file, exif_from_filename
from ocrd_models import OcrdFile, OcrdExif
from ocrd_models.ocrd_page import to_xml
from ocrd_utils import (
getLogger,
MIMETYPE_PAGE,
assert_file_grp_cardinality,
make_file_id
)
from .eynollah import Eynollah
from .utils.pil_cv2 import pil2cv
OCRD_TOOL = loads(resource_string(__name__, 'ocrd-tool.json').decode('utf8'))
class EynollahProcessor(Processor):
def __init__(self, *args, **kwargs):
kwargs['ocrd_tool'] = OCRD_TOOL['tools']['ocrd-eynollah-segment']
kwargs['version'] = OCRD_TOOL['version']
super().__init__(*args, **kwargs)
def process(self):
LOG = getLogger('eynollah')
assert_file_grp_cardinality(self.input_file_grp, 1)
assert_file_grp_cardinality(self.output_file_grp, 1)
for n, input_file in enumerate(self.input_files):
page_id = input_file.pageId or input_file.ID
LOG.info("INPUT FILE %s (%d/%d) ", page_id, n + 1, len(self.input_files))
pcgts = page_from_file(self.workspace.download_file(input_file))
LOG.debug('width %s height %s', pcgts.get_Page().imageWidth, pcgts.get_Page().imageHeight)
self.add_metadata(pcgts)
page = pcgts.get_Page()
# XXX loses DPI information
# page_image, _, _ = self.workspace.image_from_page(page, page_id, feature_filter='binarized')
image_filename = self.workspace.download_file(next(self.workspace.mets.find_files(url=page.imageFilename))).local_filename
eynollah_kwargs = {
'dir_models': self.resolve_resource(self.parameter['models']),
'allow_enhancement': False,
'curved_line': self.parameter['curved_line'],
'full_layout': self.parameter['full_layout'],
'allow_scaling': self.parameter['allow_scaling'],
'headers_off': self.parameter['headers_off'],
'tables': self.parameter['tables'],
'override_dpi': self.parameter['dpi'],
'logger': LOG,
'pcgts': pcgts,
'image_filename': image_filename
}
Eynollah(**eynollah_kwargs).run()
file_id = make_file_id(input_file, self.output_file_grp)
pcgts.set_pcGtsId(file_id)
self.workspace.add_file(
ID=file_id,
file_grp=self.output_file_grp,
pageId=page_id,
mimetype=MIMETYPE_PAGE,
local_filename=join(self.output_file_grp, file_id) + '.xml',
content=to_xml(pcgts))