Update OCR Pipeline

This commit is contained in:
Patrick Jentsch 2020-04-03 17:35:30 +02:00
parent eb5ccf4e21
commit 36a86887b0
3 changed files with 305 additions and 472 deletions

View File

@ -2,25 +2,15 @@
# coding=utf-8
from xml.sax.saxutils import escape
import argparse
from argparse import ArgumentParser
import xml.etree.ElementTree as ET
parser = argparse.ArgumentParser(
description='Merges several hOCR files in order of their occurrence on command line to one TEI result file.'
)
parser.add_argument(
'i',
metavar='hOCR-sourcefile',
nargs='+'
)
parser.add_argument(
'o',
metavar='TEI-destfile',
)
parser = ArgumentParser(description='Merges hOCR files to one P5 file.')
parser.add_argument('i', metavar='hOCR-sourcefile', nargs='+')
parser.add_argument('o', metavar='TEI-destfile',)
args = parser.parse_args()
output_file = open(args.o, 'w')
output_file.write(
'<?xml version="1.0" encoding="UTF-8"?>\n'
+ '<TEI xmlns="http://www.tei-c.org/ns/1.0" xml:id="dtabf">\n'
@ -54,5 +44,4 @@ output_file.write(
' </body>\n'
+ ' </text>\n'
+ '</TEI>')
output_file.close()

712
ocr
View File

@ -10,292 +10,206 @@ Author: Patrick Jentsch <p.jentsch@uni-bielefeld.de>
"""
import argparse
from argparse import ArgumentParser
from pyflow import WorkflowRunner
import multiprocessing
import os
import re
import sys
from pyflow import WorkflowRunner
def parse_arguments():
parser = argparse.ArgumentParser(
description='''Performs OCR of (historical) documents utilizing OCRopus
for preprocessing and Tesseract OCR for OCR. The results
are served as hOCR, PDF, raw text and TEI compliant XML
files.\n
Software requirements: imagemagick, ocropus, pdftoppm,
pdfunite, poppler-utils, pyflow, python2.7, python3.5,
tesseract'''
)
parser.add_argument(
'-i',
dest='input_dir',
required=True
)
parser.add_argument(
'-l',
choices=[
'deu', 'eng', 'enm', 'fra', 'frk', 'frm', 'ita', 'por', 'spa'
],
dest='lang',
required=True
)
parser.add_argument(
'-o',
dest='output_dir',
required=True
)
parser.add_argument(
'--skip-binarisation',
action='store_true',
default=False,
dest='skip_binarisation',
help='skip ocropy binarisation',
required=False
)
parser.add_argument(
'--keep-intermediates',
action='store_true',
default=False,
dest='keep_intermediates',
help='keep intermediate files',
required=False
)
parser.add_argument(
'--nCores',
TESSERACT_MODELS = ['deu', 'eng', 'enm', 'fra', 'frk', 'frm', 'ita', 'por',
'spa']
def parse_args():
parser = ArgumentParser(description='OCR Pipeline utilizing tesseract.')
parser.add_argument('i')
parser.add_argument('o')
parser.add_argument('-l', '--language', choices=TESSERACT_MODELS,
required=True)
parser.add_argument('--binarize', action='store_true',
help='use ocropy binarisation')
parser.add_argument('--keep-intermediates', action='store_true',
help='keep intermediate files')
parser.add_argument('--n-cores',
default=min(4, multiprocessing.cpu_count()),
dest='n_cores',
help='total number of cores available',
required=False,
type=int
)
parser.add_argument(
'--zip',
default='ocr-result-files',
dest='zip',
type=str,
help='package result files in zip bundles and asign an filename prefix',
required=False
)
help='total number of cores available', type=int)
parser.add_argument('--log-dir')
parser.add_argument('--zip')
return parser.parse_args()
class OCRWorkflow(WorkflowRunner):
def __init__(self, args):
self.jobs = analyze_jobs(args.input_dir, args.output_dir)
self.skip_binarisation = args.skip_binarisation
self.keep_intermediates = args.keep_intermediates
self.lang = args.lang
self.n_cores = args.n_cores
self.output_dir = args.output_dir
self.zip = args.zip
class OCRPipelineJob:
def __init__(self, file, output_dir):
self.file = file
self.name = os.path.basename(file).rsplit('.', 1)[0]
self.output_dir = output_dir
class OCRPipeline(WorkflowRunner):
def __init__(self, binarize, jobs, keep_intermediates, lang, n_cores,
output_dir, zip):
self.binarize = binarize
self.jobs = jobs
self.keep_intermediates = keep_intermediates
self.lang = lang
self.n_cores = n_cores
self.output_dir = output_dir
self.zip = zip
def workflow(self):
if len(self.jobs) == 0:
if not self.jobs:
return
'''
' ##################################################
' # Create output directories #
' # mkdir_jobs #
' ##################################################
'''
create_output_directories_jobs = []
for index, job in enumerate(self.jobs):
cmd = 'mkdir -p "%s"' % (
os.path.join(job['output_dir'], 'tmp')
)
mkdir_jobs = []
for i, job in enumerate(self.jobs):
output_dir = os.path.join(job.output_dir, 'tmp')
cmd = 'mkdir'
cmd += ' -p'
cmd += ' "{}"'.format(output_dir)
if self.keep_intermediates:
cmd += ' "%s" "%s" "%s" "%s"' % (
os.path.join(job['output_dir'], 'tmp', 'hocr'),
os.path.join(job['output_dir'], 'tmp', 'pdf'),
os.path.join(job['output_dir'], 'tmp', 'tiff'),
os.path.join(job['output_dir'], 'tmp', 'txt')
)
if not self.skip_binarisation:
cmd += ' "%s"' % (
os.path.join(job['output_dir'], 'tmp', 'bin.png')
)
create_output_directories_jobs.append(
self.addTask(
command=cmd,
label='create_output_directories_job_-_%i' % (index)
)
)
cmd += ' "{}"'.format(os.path.join(output_dir, 'hocr'))
cmd += ' "{}"'.format(os.path.join(output_dir, 'pdf'))
cmd += ' "{}"'.format(os.path.join(output_dir, 'tiff'))
cmd += ' "{}"'.format(os.path.join(output_dir, 'txt'))
if self.binarize:
cmd += ' "{}"'.format(os.path.join(output_dir, 'bin.png'))
cmd += ' "{}"'.format(os.path.join(output_dir, 'nrm.png'))
lbl = 'mkdir_job_-_{}'.format(i)
mkdir_jobs.append(self.addTask(command=cmd, label=lbl))
'''
' ##################################################
' # Split #
' # pdftoppm_jobs #
' ##################################################
'''
split_jobs = []
split_job_n_cores = min(
self.n_cores,
max(1, int(self.n_cores / len(self.jobs)))
)
for index, job in enumerate(self.jobs):
if job['filename'].endswith(('.tif', '.tiff')):
'''
' This command also works for PDF input but ocropus-nlbin
' is not able to handle the TIFF output of it.
'''
cmd = 'convert -density 300 "%s" -compress LZW -scene 1 "%s/page-%%d.tif"' % (
job['path'],
os.path.join(job['output_dir'], 'tmp')
)
else:
cmd = 'pdftoppm -r 300 -tiff -tiffcompression lzw "%s" "%s"' % (
job['path'],
os.path.join(job['output_dir'], 'tmp', 'page')
)
pdftoppm_jobs = []
n_cores = min(self.n_cores, max(1, int(self.n_cores / len(self.jobs))))
for i, job in enumerate(self.jobs):
output_dir = os.path.join(job.output_dir, 'tmp')
output_file_base = os.path.join(output_dir, 'page')
cmd = 'pdftoppm'
cmd += ' -r 300'
cmd += ' -tiff'
cmd += ' -tiffcompression lzw'
cmd += ' "{}" "{}"'.format(job.file, output_file_base)
deps = 'mkdir_job_-_{}'.format(i)
lbl = 'pdftoppm_job_-_{}'.format(i)
pdftoppm_jobs.append(self.addTask(command=cmd, dependencies=deps,
label=lbl, nCores=n_cores))
split_jobs.append(
self.addTask(
command=cmd,
dependencies='create_output_directories_job_-_%i' % (index),
label='split_job_-_%i' % (index),
nCores=split_job_n_cores
)
)
if not self.skip_binarisation:
if self.binarize:
'''
' The binarisation_jobs are created based of the output files of
' the split_jobs. So wait until they are finished.
' The ocropus_nlbin_jobs list is created based on the output files
' of the pdftoppm_jobs. So wait until they are finished.
'''
self.waitForTasks()
'''
' ##################################################
' # Binarise #
' # ocropus_nlbin_jobs #
' ##################################################
'''
binarisation_jobs = []
ocropus_nlbin_jobs = []
'''
' We run ocropus-nlbin with either four or, if there are less then
' four cores available for this workflow, the available core
' number.
'''
binarisation_job_n_cores = min(4, self.n_cores)
for index, job in enumerate(self.jobs):
files = os.listdir(os.path.join(job['output_dir'], 'tmp'))
files = filter(lambda x: x.endswith('.tif'), files)
n_cores = min(4, self.n_cores)
for i, job in enumerate(self.jobs):
input_dir = os.path.join(job.output_dir, 'tmp')
output_dir = input_dir
files = filter(lambda x: x.endswith('.tif'),
os.listdir(input_dir))
files.sort(key=lambda x: int(re.search(r'\d+', x).group(0)))
files = map(
lambda x: '"' + os.path.join(job['output_dir'], 'tmp', x) + '"',
files
)
cmd = 'ocropus-nlbin --output "%s" --parallel "%i" %s' % (
os.path.join(job['output_dir'], 'tmp'),
binarisation_job_n_cores,
' '.join(files)
)
binarisation_jobs.append(
self.addTask(
command=cmd,
dependencies='split_job_-_%i' % (index),
label='binarisation_job_-_%i' % (index),
nCores=binarisation_job_n_cores
)
)
files = map(lambda x: os.path.join(input_dir, x), files)
cmd = 'ocropus-nlbin "{}"'.format('" "'.join(files))
cmd += ' -o "{}"'.format(output_dir)
cmd += ' -Q "{}"'.format(n_cores)
deps = 'pdftoppm_job_-_{}'.format(i)
lbl = 'ocropus_nlbin_job_-_{}'.format(i)
ocropus_nlbin_jobs.append(
self.addTask(command=cmd, dependencies=deps, label=lbl,
nCores=n_cores))
'''
' The post_binarisation_jobs are created based of the output files
' of the binarisation_jobs. So wait until they are finished.
' The post_ocropus_nlbin_jobs are created based on the output files
' of the ocropus_nlbin_jobs. So wait until they are finished.
'''
self.waitForTasks()
'''
' ##################################################
' # Normalise file names from binarisation #
' # post_ocropus_nlbin_jobs #
' ##################################################
'''
post_binarisation_jobs = []
for index, job in enumerate(self.jobs):
post_ocropus_nlbin_jobs = []
for i, job in enumerate(self.jobs):
input_dir = os.path.join(job.output_dir, 'tmp')
output_dir = input_dir
number = 0
files = os.listdir(os.path.join(job['output_dir'], 'tmp'))
files = filter(lambda x: x.endswith('.bin.png'), files)
files = filter(lambda x: x.endswith('.bin.png'),
os.listdir(input_dir))
files.sort()
for file in files:
cmd = 'mv "%s" "%s"' % (
os.path.join(job['output_dir'], 'tmp', file),
os.path.join(
job['output_dir'],
'tmp',
'page-%i.bin.png' % (int(file.split('.', 1)[0]))
)
)
post_binarisation_jobs.append(
self.addTask(
command=cmd,
dependencies='binarisation_job_-_%i' % (index),
label='post_binarisation_job_-_%i-%i' % (
index,
number
)
)
)
# int conversion is done in order to trim leading zeros
output_file = os.path.join(output_dir, 'page-{}.bin.png'.format(int(file.split('.', 1)[0]))) # noqa
cmd = 'mv "{}" "{}"'.format(os.path.join(output_dir, file),
output_file)
deps = 'ocropus_nlbin_job_-_{}'.format(i)
lbl = 'post_ocropus_nlbin_job_-_{}-{}'.format(i, number)
post_ocropus_nlbin_jobs.append(
self.addTask(command=cmd, dependencies=deps,
label=lbl))
number += 1
'''
' The ocr_jobs are created based of the output files of either the
' split_jobs or post_binarisation_jobs. So wait until they are
' The tesseract_jobs are created based of the output files of either
' the pdftoppm_jobs or post_ocropus_nlbin_jobs. So wait until they are
' finished.
'''
self.waitForTasks()
'''
' ##################################################
' # Optical Character Recognition #
' # tesseract_jobs #
' ##################################################
'''
ocr_jobs = []
tesseract_jobs = []
'''
' Tesseract runs fastest with four cores. So we run it with either four
' or, if there are less then four cores available for this workflow,
' the available core number.
'''
ocr_job_n_cores = min(4, self.n_cores)
for index, job in enumerate(self.jobs):
files = os.listdir(os.path.join(job['output_dir'], 'tmp'))
if self.skip_binarisation:
files = filter(lambda x: x.endswith('.tif'), files)
else:
files = filter(lambda x: x.endswith('.bin.png'), files)
n_cores = min(4, self.n_cores)
for i, job in enumerate(self.jobs):
input_dir = os.path.join(job.output_dir, 'tmp')
output_dir = input_dir
files = filter(lambda x: x.endswith('.bin.png' if self.binarize else '.tif'), # noqa
os.listdir(input_dir))
files.sort(key=lambda x: int(re.search(r'\d+', x).group(0)))
files = map(
lambda x: os.path.join(job['output_dir'], 'tmp', x),
files
)
files = map(lambda x: os.path.join(input_dir, x), files)
number = 0
for file in files:
cmd = 'tesseract "%s" "%s" -l "%s" hocr pdf txt' % (
file,
os.path.join(
job['output_dir'],
'tmp',
file.rsplit('.', 1 if self.skip_binarisation else 2)[0]
),
self.lang
)
if self.skip_binarisation:
ocr_job_dependencies = 'split_job_-_%i' % (index)
output_file_base = os.path.join(output_dir, file.rsplit('.', 2 if self.binarize else 1)[0]) # noqa
cmd = 'tesseract "{}" "{}"'.format(file, output_file_base)
cmd += ' -l "{}"'.format(self.lang)
cmd += ' hocr pdf txt'
if self.binarize:
deps = 'post_ocropus_nlbin_job_-_{}-{}'.format(i, number)
else:
ocr_job_dependencies = filter(
lambda x: x == 'post_binarisation_job_-_%i-%i' % (
index,
number
),
post_binarisation_jobs
)
ocr_jobs.append(
self.addTask(
command=cmd,
dependencies=ocr_job_dependencies,
label='ocr_job_-_%i-%i' % (index, number),
nCores=ocr_job_n_cores
)
)
deps = 'pdftoppm_job_-_{}'.format(i)
label = 'tesseract_jobs_-_{}-{}'.format(i, number)
tesseract_jobs.append(
self.addTask(command=cmd, dependencies=deps, label=label,
nCores=n_cores))
number += 1
'''
@ -306,251 +220,191 @@ class OCRWorkflow(WorkflowRunner):
'''
' ##################################################
' # Create TEI P5 files #
' # hocrtotei_jobs #
' ##################################################
'''
hocr_to_tei_jobs = []
for index, job in enumerate(self.jobs):
files = os.listdir(os.path.join(job['output_dir'], 'tmp'))
files = filter(lambda x: x.endswith('.hocr'), files)
hocrtotei_jobs = []
for i, job in enumerate(self.jobs):
input_dir = os.path.join(job.output_dir, 'tmp')
files = filter(lambda x: x.endswith('.hocr'),
os.listdir(input_dir))
files.sort(key=lambda x: int(re.search(r'\d+', x).group(0)))
files = map(
lambda x: '"' + os.path.join(job['output_dir'], 'tmp', x) + '"',
files
)
cmd = 'hocrtotei %s "%s"' % (
' '.join(files),
os.path.join(
job['output_dir'],
os.path.join(job['output_dir'], job['name'] + '.xml')
)
)
hocr_to_tei_jobs.append(
self.addTask(
command=cmd,
dependencies=filter(
lambda x: x.startswith('ocr_job_-_%i' % (index)),
ocr_jobs
),
label='hocr_to_tei_job_-_%i' % (index)
)
)
files = map(lambda x: os.path.join(input_dir, x), files)
output_file = os.path.join(job.output_dir,
'{}.xml'.format(job.name))
cmd = 'hocrtotei "{}" "{}"'.format('" "'.join(files), output_file)
deps = filter(lambda x: x.startswith('ocr_job_-_{}'.format(i)),
tesseract_jobs)
lbl = 'hocrtotei_job_-_{}'.format(i)
hocrtotei_jobs.append(self.addTask(command=cmd, dependencies=deps,
label=lbl))
'''
' ##################################################
' # Merge PDF files #
' # pdfunite_jobs #
' ##################################################
'''
pdf_merge_jobs = []
for index, job in enumerate(self.jobs):
files = os.listdir(os.path.join(job['output_dir'], 'tmp'))
files = filter(lambda x: x.endswith('.pdf'), files)
pdfunite_jobs = []
for i, job in enumerate(self.jobs):
input_dir = os.path.join(job.output_dir, 'tmp')
files = filter(lambda x: x.endswith('.pdf'), os.listdir(input_dir))
files.sort(key=lambda x: int(re.search(r'\d+', x).group(0)))
files = map(
lambda x: '"' + os.path.join(job['output_dir'], 'tmp', x) + '"',
files
)
cmd = 'pdfunite %s "%s"' % (
' '.join(files),
os.path.join(
job['output_dir'],
os.path.join(job['output_dir'], job['name'] + '.pdf')
)
)
pdf_merge_jobs.append(
self.addTask(
command=cmd,
dependencies=filter(
lambda x: x.startswith('ocr_job_-_%i' % (index)),
ocr_jobs
),
label='pdf_merge_job_-_%i' % (index)
)
)
files = map(lambda x: os.path.join(input_dir, x), files)
output_file = os.path.join(job.output_dir,
'{}.pdf'.format(job.name))
cmd = 'pdfunite "{}" "{}"'.format('" "'.join(files), output_file)
deps = filter(lambda x: x.startswith('ocr_job_-_{}'.format(i)),
tesseract_jobs)
lbl = 'pdfunite_job_-_{}'.format(i)
pdfunite_jobs.append(self.addTask(command=cmd, dependencies=deps,
label=lbl))
'''
' ##################################################
' # Merge text files #
' # cat_jobs #
' ##################################################
'''
txt_merge_jobs = []
for index, job in enumerate(self.jobs):
files = os.listdir(os.path.join(job['output_dir'], 'tmp'))
files = filter(lambda x: x.endswith('.txt'), files)
cat_jobs = []
for i, job in enumerate(self.jobs):
input_dir = os.path.join(job.output_dir, 'tmp')
files = filter(lambda x: x.endswith('.txt'), os.listdir(input_dir))
files.sort(key=lambda x: int(re.search(r'\d+', x).group(0)))
files = map(
lambda x: '"' + os.path.join(job['output_dir'], 'tmp', x) + '"',
files
)
cmd = 'cat %s > "%s"' % (
' '.join(files),
os.path.join(
job['output_dir'],
os.path.join(job['output_dir'], job['name'] + '.txt')
)
)
txt_merge_jobs.append(
self.addTask(
command=cmd,
dependencies=filter(
lambda x: x.startswith('ocr_job_-_%i' % (index)),
ocr_jobs
),
label='txt_merge_job_-_%i' % (index)
)
)
if self.zip:
all_zip_jobs = []
all_zip_job_dependencies = (hocr_to_tei_jobs
+ pdf_merge_jobs
+ txt_merge_jobs)
cmd = 'cd "%s" && zip "%s"-all-ocr-files.zip */*.{pdf,txt,xml} -x "pyflow.data*" && cd -' % (
self.output_dir,
self.zip
)
all_zip_jobs.append(
self.addTask(
command=cmd,
dependencies=all_zip_job_dependencies,
label='all_zip_job'
)
)
pdf_zip_jobs = []
pdf_zip_job_dependencies = all_zip_jobs
cmd = 'cd "%s" && zip -m "%s"-ocr-pdf.zip */*.pdf -x "pyflow.data*" && cd -' % (
self.output_dir,
self.zip
)
pdf_zip_jobs.append(
self.addTask(
command=cmd,
dependencies=pdf_zip_job_dependencies,
label='pdf_zip_job'
)
)
txt_zip_jobs = []
txt_zip_job_dependencies = all_zip_jobs
cmd = 'cd "%s" && zip -m "%s"-ocr-txt.zip */*.txt -x "pyflow.data*" && cd -' % (
self.output_dir,
self.zip
)
txt_zip_jobs.append(
self.addTask(
command=cmd,
dependencies=txt_zip_job_dependencies,
label='txt_zip_job'
)
)
xml_zip_jobs = []
xml_zip_job_dependencies = all_zip_jobs
cmd = 'cd "%s" && zip -m "%s"-ocr-xml.zip */*.xml -x "pyflow.data*" && cd -' % (
self.output_dir,
self.zip
)
xml_zip_jobs.append(
self.addTask(
command=cmd,
dependencies=xml_zip_job_dependencies,
label='xml_zip_job'
)
)
files = map(lambda x: os.path.join(input_dir, x), files)
output_file = os.path.join(job.output_dir,
'{}.txt'.format(job.name))
cmd = 'cat "{}" > "{}"'.format('" "'.join(files), output_file)
deps = filter(lambda x: x.startswith('ocr_job_-_{}'.format(i)),
tesseract_jobs)
lbl = 'cat_job_-_{}'.format(i)
cat_jobs.append(self.addTask(command=cmd, dependencies=deps,
label=lbl))
'''
' ##################################################
' # Cleanup #
' # zip_jobs #
' ##################################################
'''
cleanup_jobs = []
zip_jobs = []
if self.zip is not None:
cmd = 'cd "{}"'.format(self.output_dir)
cmd += ' && '
cmd += 'zip'
cmd += ' -r'
cmd += ' "{}_-_all" .'.format(self.zip)
cmd += ' -x "pyflow.data*" "*tmp*"'
cmd += ' -i "*.pdf" "*.txt" "*.xml"'
cmd += ' && '
cmd += 'cd -'
deps = hocrtotei_jobs + pdfunite_jobs + cat_jobs
lbl = 'zip_job_-_all'
zip_jobs.append(self.addTask(command=cmd, dependencies=deps,
label=lbl))
cmd = 'cd "{}"'.format(self.output_dir)
cmd += ' && '
cmd += 'zip'
cmd += ' -m'
cmd += ' -r'
cmd += ' "{}_-_pdf" .'.format(self.zip)
cmd += ' -x "pyflow.data*" "*tmp*"'
cmd += ' -i "*.pdf"'
cmd += ' && '
cmd += 'cd -'
deps = 'zip_job_-_all'
lbl = 'zip_job_-_pdf'
zip_jobs.append(self.addTask(command=cmd, dependencies=deps,
label=lbl))
cmd = 'cd "{}"'.format(self.output_dir)
cmd += ' && '
cmd += 'zip'
cmd += ' -m'
cmd += ' -r'
cmd += ' "{}_-_txt" .'.format(self.zip)
cmd += ' -x "pyflow.data*" "*tmp*"'
cmd += ' -i "*.txt"'
cmd += ' && '
cmd += 'cd -'
deps = 'zip_job_-_all'
lbl = 'zip_job_-_txt'
zip_jobs.append(self.addTask(command=cmd, dependencies=deps,
label=lbl))
cmd = 'cd "{}"'.format(self.output_dir)
cmd += ' && '
cmd += 'zip'
cmd += ' -m'
cmd += ' -r'
cmd += ' "{}_-_xml" .'.format(self.zip)
cmd += ' -x "pyflow.data*" "*tmp*"'
cmd += ' -i "*.xml"'
cmd += ' && '
cmd += 'cd -'
deps = 'zip_job_-_all'
lbl = 'zip_job_-_xml'
zip_jobs.append(self.addTask(command=cmd, dependencies=deps,
label=lbl))
'''
' ##################################################
' # mv_jobs #
' ##################################################
'''
mv_jobs = []
if self.keep_intermediates:
for index, job in enumerate(self.jobs):
cleanup_job_dependencies = [
'hocr_to_tei_job_-_%i' % (index),
'pdf_merge_job_-_%i' % (index),
'txt_merge_job_-_%i' % (index)
]
cmd = 'mv "%s"/*.hocr "%s"' % (
os.path.join(job['output_dir'], 'tmp'),
os.path.join(job['output_dir'], 'tmp', 'hocr'),
)
cmd += ' && mv "%s"/*.pdf "%s"' % (
os.path.join(job['output_dir'], 'tmp'),
os.path.join(job['output_dir'], 'tmp', 'pdf'),
)
cmd += ' && mv "%s"/*.tif "%s"' % (
os.path.join(job['output_dir'], 'tmp'),
os.path.join(job['output_dir'], 'tmp', 'tiff'),
)
cmd += ' && mv "%s"/*.txt "%s"' % (
os.path.join(job['output_dir'], 'tmp'),
os.path.join(job['output_dir'], 'tmp', 'txt'),
)
if not self.skip_binarisation:
cmd += ' && mv "%s"/*.bin.png "%s"' % (
os.path.join(job['output_dir'], 'tmp'),
os.path.join(job['output_dir'], 'tmp', 'bin.png'),
)
cmd += ' && rm "%s"/*.nrm.png' % (
os.path.join(job['output_dir'], 'tmp')
)
cleanup_jobs.append(
self.addTask(
command=cmd,
dependencies=cleanup_job_dependencies,
label='cleanup_job_-_%i' % (index)
)
)
for i, job in enumerate(self.jobs):
input_dir = os.path.join(job.output_dir, 'tmp')
output_dir = input_dir
cmd = 'mv "{}"/*.hocr "{}"'.format(
input_dir, os.path.join(output_dir, 'hocr'))
cmd += ' && '
cmd += 'mv "{}"/*.pdf "{}"'.format(input_dir, os.path.join(output_dir, 'pdf')) # noqa
cmd += ' && '
cmd += 'mv "{}"/*.tif "{}"'.format(input_dir, os.path.join(output_dir, 'tiff')) # noqa
cmd += ' && '
cmd += 'mv "{}"/*.txt "{}"'.format(input_dir, os.path.join(output_dir, 'txt')) # noqa
if self.binarize:
cmd += ' && '
cmd += 'mv "{}"/*.bin.png "{}"'.format(input_dir, os.path.join(output_dir, 'bin.png')) # noqa
cmd += ' && '
cmd += 'mv "{}"/*.nrm.png "{}"'.format(input_dir, os.path.join(output_dir, 'nrm.png')) # noqa
deps = ['hocrtotei_job_-_{}'.format(i),
'pdfunite_job_-_{}'.format(i),
'cat_job_-_{}'.format(i)]
lbl = 'mv_job_-_{}'.format(i)
mv_jobs.append(self.addTask(command=cmd, dependencies=deps,
label=lbl))
else:
for index, job in enumerate(self.jobs):
cleanup_job_dependencies = [
'hocr_to_tei_job_-_%i' % (index),
'pdf_merge_job_-_%i' % (index),
'txt_merge_job_-_%i' % (index)
]
cmd = 'rm -r "%s"' % (
os.path.join(job['output_dir'], 'tmp')
)
cleanup_jobs.append(
self.addTask(
command=cmd,
dependencies=cleanup_job_dependencies,
label='cleanup_job_-_%i' % (index)
)
)
for i, job in enumerate(self.jobs):
input_dir = os.path.join(job.output_dir, 'tmp')
cmd = 'rm -r "{}"'.format(input_dir)
deps = ['hocrtotei_job_-_{}'.format(i),
'pdfunite_job_-_{}'.format(i),
'cat_job_-_{}'.format(i)]
lbl = 'mv_job_-_{}'.format(i)
mv_jobs.append(self.addTask(command=cmd, dependencies=deps,
label=lbl))
def analyze_jobs(input_dir, output_dir):
def collect_jobs(input_dir, output_dir):
jobs = []
for file in os.listdir(input_dir):
if os.path.isdir(os.path.join(input_dir, file)):
jobs += analyze_jobs(
os.path.join(input_dir, file),
os.path.join(output_dir, file)
)
elif file.endswith(('.pdf', '.tif', '.tiff')):
jobs.append(
{
'filename': file,
'name': file.rsplit('.', 1)[0],
'output_dir': os.path.join(output_dir, file),
'path': os.path.join(input_dir, file)
}
)
jobs += collect_jobs(os.path.join(input_dir, file),
os.path.join(output_dir, file))
elif file.endswith('.pdf'):
jobs.append(OCRPipelineJob(os.path.join(input_dir, file),
os.path.join(output_dir, file)))
return jobs
def main():
args = parse_arguments()
wflow = OCRWorkflow(args)
retval = wflow.run(dataDirRoot=args.output_dir, nCores=args.n_cores)
args = parse_args()
jobs = collect_jobs(args.i, args.o)
ocr_pipeline = OCRPipeline(args.binarize, jobs, args.keep_intermediates,
args.language, args.n_cores, args.o, args.zip)
retval = ocr_pipeline.run(dataDirRoot=(args.log_dir or args.o),
nCores=args.n_cores)
sys.exit(retval)

View File

@ -1,39 +1,29 @@
#!/usr/bin/env python3
# coding=utf-8
import argparse
from argparse import ArgumentParser
import os
import subprocess
container_image = 'gitlab.ub.uni-bielefeld.de:4567/sfb1288inf/ocr:latest'
container_input_dir = '/input'
container_output_dir = '/output'
uid = str(os.getuid())
gid = str(os.getgid())
CONTAINER_IMAGE = 'gitlab.ub.uni-bielefeld.de:4567/sfb1288inf/ocr:latest'
CONTAINER_INPUT_DIR = '/input'
CONTAINER_OUTPUT_DIR = '/output'
UID = str(os.getuid())
GID = str(os.getgid())
parser = argparse.ArgumentParser(add_help=False)
parser.add_argument(
'-i',
dest='input_dir',
required=False
)
parser.add_argument(
'-o',
dest='output_dir',
required=False
)
parser = ArgumentParser(add_help=False)
parser.add_argument('-i')
parser.add_argument('-o')
args, remaining_args = parser.parse_known_args()
cmd = ['docker', 'run', '--rm', '-it', '-u', uid + ':' + gid]
if args.input_dir is not None:
host_input_dir = os.path.abspath(args.input_dir)
cmd += ['-v', host_input_dir + ':' + container_input_dir]
remaining_args += ['-i', container_input_dir]
if args.output_dir is not None:
host_output_dir = os.path.abspath(args.output_dir)
cmd += ['-v', host_output_dir + ':' + container_output_dir]
remaining_args += ['-o', container_output_dir]
cmd.append(container_image)
cmd = ['docker', 'run', '--rm', '-it', '-u', '{}:{}'.format(UID, GID)]
if args.o is not None:
cmd += ['-v', '{}:{}'.format(os.path.abspath(args.o), CONTAINER_OUTPUT_DIR)]
remaining_args.insert(0, CONTAINER_OUTPUT_DIR)
if args.i is not None:
cmd += ['-v', '{}:{}'.format(os.path.abspath(args.i), CONTAINER_INPUT_DIR)]
remaining_args.insert(0, CONTAINER_INPUT_DIR)
cmd.append(CONTAINER_IMAGE)
cmd += remaining_args
subprocess.run(cmd)