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