qurator-spk/sbb_textline_detection
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🚧 sbb_textline_detector: Translate detected coordinates

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Gerber, Mike 2020-10-15 19:26:24 +02:00
parent a9b9c8a885
commit 37cc513ce9
1 changed files with 23 additions and 3 deletions
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26
qurator/sbb_textline_detector/ocrd_cli.py
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@ -8,12 +8,15 @@ from ocrd import Processor
from ocrd.decorators import ocrd_cli_options, ocrd_cli_wrap_processor from ocrd.decorators import ocrd_cli_options, ocrd_cli_wrap_processor
from ocrd_modelfactory import page_from_file from ocrd_modelfactory import page_from_file
from ocrd_models import OcrdFile from ocrd_models import OcrdFile
from ocrd_models.ocrd_page_generateds import MetadataItemType, LabelsType, LabelType from ocrd_models.ocrd_page_generateds import MetadataItemType, LabelsType, LabelType, \
CoordsType
from ocrd_utils import ( from ocrd_utils import (
assert_file_grp_cardinality, assert_file_grp_cardinality,
getLogger, getLogger,
make_file_id, make_file_id,
MIMETYPE_PAGE MIMETYPE_PAGE,
coordinates_for_segment,
polygon_from_points, points_from_polygon,
) )
from pkg_resources import resource_string from pkg_resources import resource_string
@ -90,9 +93,26 @@ class OcrdSbbTextlineDetectorRecognize(Processor):
if page.get_ReadingOrder(): if page.get_ReadingOrder():
log.warning("Page already contained a reading order") log.warning("Page already contained a reading order")
page.set_ReadingOrder(tmp_page.get_ReadingOrder()) page.set_ReadingOrder(tmp_page.get_ReadingOrder())
if page.get_TextRegion(): if page.get_TextRegion():
log.warning("Page already contained text regions") log.warning("Page already contained text regions")
page.set_TextRegion(tmp_page.get_TextRegion())
# We need to translate the coordinates in case we deal with a
# cropped image:
text_regions_new = []
for text_region in tmp_page.get_TextRegion():
coords = text_region.get_Coords().get_points()
polygon = polygon_from_points(coords)
polygon_new = coordinates_for_segment(polygon, page_image, page_coords)
points_new = points_from_polygon(polygon_new)
coords_new = CoordsType(points=points_new)
text_region.set_Coords(coords_new)
text_regions_new.append(text_region)
page.set_TextRegion(text_regions_new)
# Save metadata about this operation # Save metadata about this operation
metadata = pcgts.get_Metadata() metadata = pcgts.get_Metadata()