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ocrd-galley/my_ocrd_workflow

158 lines
3.9 KiB
Bash

#!/bin/bash
set -e # Abort on error
# Configuration
export LOG_LEVEL=${LOG_LEVEL:-DEBUG} # /etc/ocrd_logging.py uses this to set level for all OCR-D modules
export TEXTEQUIV_LEVEL=glyph
# Set up logging
if [ "$LOG_LEVEL" = "DEBUG" -o "$LOG_LEVEL" = "TRACE" ]; then
set -x
fi
do_validate() {
# Validate the workspace
# Both ocrd_tesserocr + ocrd_calamari produce segment coordinates that are not strictly within their parent's
# coordinates:
#
# INCONSISTENCY in [...] coords [...] not within parent coords
#
# → --page-coordinate-consistency off
#
# ocrd_tesserocr sometimes produces segment text results that aren't concatenating as expected by the validator:
#
# INCONSISTENCY in [...]: text results '[...]' != concatenated '[...]'
#
# → --page-strictness lax
#
validate_options='
--skip dimension
--skip pixel_density
--page-strictness lax
--page-coordinate-consistency off'
ocrd workspace validate $validate_options
}
do_binarization() {
# Binarize the images
ocrd_olena_binarize_parameters='{
"impl": "sauvola-ms-split"
}'
ocrd workspace remove-group -rf OCR-D-IMG-BINPAGE
ocrd workspace remove-group -rf OCR-D-IMG-BIN
ocrd-olena-binarize -I OCR-D-IMG -O OCR-D-IMG-BINPAGE,OCR-D-IMG-BIN -p "$ocrd_olena_binarize_parameters"
}
do_linesegmentation_tesserocr() {
# Segment the lines in the binarized images
ocrd workspace remove-group -rf OCR-D-SEG-REGION
ocrd workspace remove-group -rf OCR-D-SEG-LINE
ocrd-tesserocr-segment-region -I OCR-D-IMG-BINPAGE -O OCR-D-SEG-REGION
ocrd-tesserocr-segment-line -I OCR-D-SEG-REGION -O OCR-D-SEG-LINE
}
do_linesegmentation_sbb() {
# Segment the lines in the images
ocrd_sbb_textline_detector_parameters='{
"model": "/var/lib/textline_detection"
}'
ocrd workspace remove-group -rf OCR-D-SEG-REGION
ocrd workspace remove-group -rf OCR-D-SEG-LINE
ocrd-sbb-textline-detector -I OCR-D-IMG-BINPAGE -O OCR-D-SEG-LINE -p "$ocrd_sbb_textline_detector_parameters"
}
do_ocr() {
# Perform OCR on the segmented lines
ocrd_tesserocr_recognize_parameters='{
"model": "GT4HistOCR_2000000",
"textequiv_level": "'$TEXTEQUIV_LEVEL'"
}'
ocrd workspace remove-group -rf OCR-D-OCR-TESS
ocrd-tesserocr-recognize -I OCR-D-SEG-LINE -O OCR-D-OCR-TESS -p "$ocrd_tesserocr_recognize_parameters"
}
do_ocr_calamari() {
# Perform OCR on the segmented lines
ocrd_calamari_recognize_parameters='{
"checkpoint": "/var/lib/calamari-models/GT4HistOCR/2019-07-22T15:49+0200/*.ckpt.json",
"textequiv_level": "'$TEXTEQUIV_LEVEL'"
}'
ocrd workspace remove-group -rf OCR-D-OCR-CALAMARI
ocrd-calamari-recognize -I OCR-D-SEG-LINE -O OCR-D-OCR-CALAMARI -p "$ocrd_calamari_recognize_parameters"
}
page_validate_xml() {
# Validate all PAGE XML against the XML schema
filegrp=$1
local file
for file in `ocrd workspace find -G $filegrp`; do
XSD_DIR=`dirname $0`/xsd
if [ ! -d "$XSD_DIR" ]; then
XSD_DIR=/usr/share/xml
fi
xmllint --noout --schema $XSD_DIR/pagecontent.2019-07-15.xsd $file
done
}
page_upgrade_to_2019() {
# Upgrade PAGE files to 2019-07-15
filegrp=$1
local file
for file in `ocrd workspace find -G $filegrp`; do
sed -i 's#pagecontent/[0-9-]*#pagecontent/2019-07-15#g' $file
done
}
main() {
do_binarization
do_validate
do_linesegmentation_sbb
page_upgrade_to_2019 OCR-D-SEG-LINE
page_validate_xml OCR-D-SEG-REGION
page_validate_xml OCR-D-SEG-LINE
do_validate
do_ocr_calamari
do_ocr
for ocr_filegrp in OCR-D-OCR-CALAMARI OCR-D-OCR-TESS; do
page_validate_xml $ocr_filegrp
do_validate
if ocrd workspace list-group | grep -q OCR-D-GT-PAGE; then
ocrd workspace remove-group -rf $ocr_filegrp-EVAL
ocrd-dinglehopper -I OCR-D-GT-PAGE,$ocr_filegrp -O $ocr_filegrp-EVAL
fi
done
}
if [ "$LOG_LEVEL" = "DEBUG" -o "$LOG_LEVEL" = "TRACE" ]; then
pip3 list
fi
main
# vim:tw=120: