The CIS OCR PostCorrectionTool

Last update: Dec 15, 2022

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Overview

The CIS OCR Post Correction Tool PoCoTo

Source code for the Java-based PoCoTo client enabling fast interactive batch corrections of complete OCR error series in OCR'ed historical documents. For a detailed description see the PoCoTo Manual.

The lastest compiled binary can be downloaded here.

References

PoCoTo has originally been written by Thorsten Vobl as part of his master's thesis in computational linguistics at CIS during the IMPACT project.

It has been further developed as a CLARIN-D Kurationsprojekt by Florian Fink and Uwe Springmann at CIS.

Its underlying technology is described in the following publication:

Vobl, Thorsten, Annette Gotscharek, Uli Reffle, Christoph Ringlstetter, and Klaus U. Schulz. 2014. “PoCoTo - an Open Source System for Efficient Interactive Postcorrection of OCRed Historical Texts.” In Proceedings of the First International Conference on Digital Access to Textual Cultural Heritage, 57–61. DATeCH ’14. New York, NY, USA: ACM. doi:http://doi.org/10.1145/2595188.2595197.

Comments

Time busy before ready to edit ocr

I have a book with abbyy(v11)-ocr which takes approx. 4 minutes on a modern cpu before a page is ready to be edited. ocrcorrection-process is busy during this period. Example on request. Kind regards, Barth @ UB Uni Heidelberg

opened by jbarth-ubhd 5
Java version required for PoCoTo
PoCoTo is based on netbeans, from approx. 2014

To my experience, newer java releases do not work with PoCoTo.

Oracle Java 7u80 does not allow »Check for Updates« (possibly TLS version?)

Oracle Java 8u5 seems to work

openjdk-8-jre version 8u222-b10-1ubuntu1~18.04.1 seems to work, too [line added 2019-08-09]

newer java versions (Oracle, openjdk) (~-8-~ 9 ... 12) do not work
opened by jbarth-ubhd 1

export problem with large files

exporting a large file (more than 3600 subimages) leads to a timeout:

[INFO] 2016-10-05 20:33:26,440 - [java.lang.Class] PoCoTo version: 16.01.3
[INFO] 2016-10-05 20:33:26,451 - [java.lang.Class] Setup logging base dir '/home/uvius/.ocrcorrection/dev'
[INFO] 2016-10-05 20:33:27,462 - [jav.gui.main.MainController] Programmstart
[INFO] 2016-10-05 20:58:21,884 - [jav.gui.main.MainController] MainTopComponent # Document changed
[INFO] 2016-10-05 20:58:23,412 - [jav.gui.image.CompleteImageTopComponent] loadImage(/home/uvius/data/OCR/Kallimachos/Itf954/ocro-tif/DE-20__I_t_f_954__0001__R0001r__ro357564684568544579089__000__r1__TextRegion__heading.tif, 0.400000)
[INFO] 2016-10-05 20:58:30,539 - [jav.gui.image.CompleteImageTopComponent] loadImage(/home/uvius/data/OCR/Kallimachos/Itf954/ocro-tif/DE-20__I_t_f_954__0001__R0001r__ro357564684568544579089__001__r2__TextRegion__page-number.tif, 0.400000)
[INFO] 2016-10-05 20:58:37,466 - [jav.gui.image.CompleteImageTopComponent] loadImage(/home/uvius/data/OCR/Kallimachos/Itf954/ocro-tif/DE-20__I_t_f_954__0001__R0001r__ro357564684568544579089__002__r5__TextRegion__paragraph.tif, 0.400000)
[INFO] 2016-10-05 20:58:43,084 - [jav.gui.image.CompleteImageTopComponent] loadImage(/home/uvius/data/OCR/Kallimachos/Itf954/ocro-tif/DE-20__I_t_f_954__0001__R0001r__ro357564684568544579089__003__r8__TextRegion__heading.tif, 0.400000)
[INFO] 2016-10-05 20:58:46,199 - [jav.gui.image.CompleteImageTopComponent] loadImage(/home/uvius/data/OCR/Kallimachos/Itf954/ocro-tif/DE-20__I_t_f_954__0001__R0001r__ro357564684568544579089__004__r10__TextRegion__paragraph.tif, 0.400000)
[INFO] 2016-10-05 20:58:50,115 - [jav.gui.image.CompleteImageTopComponent] loadImage(/home/uvius/data/OCR/Kallimachos/Itf954/ocro-tif/DE-20__I_t_f_954__0001__R0001r__ro357564684568544579089__005__r11__TextRegion__paragraph.tif, 0.400000)
[INFO] 2016-10-05 20:59:12,314 - [jav.gui.image.CompleteImageTopComponent] loadImage(/home/uvius/data/OCR/Kallimachos/Itf954/ocro-tif/DE-20__I_t_f_954__0001__R0001r__ro357564684568544579089__006__r12__TextRegion__paragraph.tif, 0.400000)
[INFO] 2016-10-05 20:59:20,706 - [jav.gui.image.CompleteImageTopComponent] loadImage(/home/uvius/data/OCR/Kallimachos/Itf954/ocro-tif/DE-20__I_t_f_954__0002__R0001v__ro357564684568544579089__000__r1__TextRegion__heading.tif, 0.400000)
[INFO] 2016-10-05 20:59:24,953 - [jav.gui.image.CompleteImageTopComponent] loadImage(/home/uvius/data/OCR/Kallimachos/Itf954/ocro-tif/DE-20__I_t_f_954__0002__R0001v__ro357564684568544579089__001__r2__TextRegion__paragraph.tif, 0.400000)
[INFO] 2016-10-05 21:00:34,646 - [jav.gui.main.MainController] profiler_service_url: 'http://localhost:8080/axis2/services/ProfilerWebService'
[INFO] 2016-10-05 21:00:42,644 - [jav.gui.main.MainController] profiler_service_url: 'http://localhost:8080/axis2/services/ProfilerWebService'
[INFO] 2016-10-05 21:00:42,722 - [jav.gui.main.MainController$DocumentProfiler] exporting document ...
[ERROR] 2016-10-05 21:01:16,643 - Exception:
java.sql.SQLException: Login timeout
    at org.h2.jdbcx.JdbcConnectionPool.getConnection(JdbcConnectionPool.java:208)
    at jav.correctionBackend.Document.getTokenByIndex(Document.java:1351)
    at jav.correctionBackend.PageIterator.next(Document.java:2322)
    at jav.correctionBackend.PageIterator.next(Document.java:2274)
    at jav.correctionBackend.OcrXmlExporter.export(OcrXmlExporter.java:57)
    at jav.correctionBackend.Document.exportAsDocXML(Document.java:1604)
    at jav.gui.main.MainController$DocumentProfiler.run(MainController.java:1117)
    at jav.gui.main.MainController$DocumentProfiler.run(MainController.java:1066)
    at org.netbeans.modules.progress.ui.RunOffEDTImpl$ProgressBackgroundRunner.runBackground(RunOffEDTImpl.java:486)
    at org.netbeans.modules.progress.ui.AbstractWindowRunner.call(AbstractWindowRunner.java:108)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
    at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
[ERROR] 2016-10-05 21:01:16,646 - [jav.gui.main.MainController$DocumentProfiler] profiling error: null
[ERROR] 2016-10-05 21:08:57,934 - [jav.correctionBackend.SpreadIndexDocument] SQLException: Login timeout

opened by uvius 1

Add CodeQL workflow for GitHub code scanning
Hi cisocrgroup/PoCoTo!

This is a one-off automatically generated pull request from LGTM.com :robot:. You might have heard that we’ve integrated LGTM’s underlying CodeQL analysis engine natively into GitHub. The result is GitHub code scanning!

With LGTM fully integrated into code scanning, we are focused on improving CodeQL within the native GitHub code scanning experience. In order to take advantage of current and future improvements to our analysis capabilities, we suggest you enable code scanning on your repository. Please take a look at our blog post for more information.

This pull request enables code scanning by adding an auto-generated codeql.yml workflow file for GitHub Actions to your repository — take a look! We tested it before opening this pull request, so all should be working :heavy_check_mark:. In fact, you might already have seen some alerts appear on this pull request!

Where needed and if possible, we’ve adjusted the configuration to the needs of your particular repository. But of course, you should feel free to tweak it further! Check this page for detailed documentation.

Questions? Check out the FAQ below!

FAQ

Click here to expand the FAQ section

How often will the code scanning analysis run?

By default, code scanning will trigger a scan with the CodeQL engine on the following events:

On every pull request — to flag up potential security problems for you to investigate before merging a PR.

On every push to your default branch and other protected branches — this keeps the analysis results on your repository’s Security tab up to date.

Once a week at a fixed time — to make sure you benefit from the latest updated security analysis even when no code was committed or PRs were opened.

What will this cost?

Nothing! The CodeQL engine will run inside GitHub Actions, making use of your unlimited free compute minutes for public repositories.

What types of problems does CodeQL find?

The CodeQL engine that powers GitHub code scanning is the exact same engine that powers LGTM.com. The exact set of rules has been tweaked slightly, but you should see almost exactly the same types of alerts as you were used to on LGTM.com: we’ve enabled the security-and-quality query suite for you.

How do I upgrade my CodeQL engine?

No need! New versions of the CodeQL analysis are constantly deployed on GitHub.com; your repository will automatically benefit from the most recently released version.

The analysis doesn’t seem to be working

If you get an error in GitHub Actions that indicates that CodeQL wasn’t able to analyze your code, please follow the instructions here to debug the analysis.

How do I disable LGTM.com?

If you have LGTM’s automatic pull request analysis enabled, then you can follow these steps to disable the LGTM pull request analysis. You don’t actually need to remove your repository from LGTM.com; it will automatically be removed in the next few months as part of the deprecation of LGTM.com (more info here).

Which source code hosting platforms does code scanning support?

GitHub code scanning is deeply integrated within GitHub itself. If you’d like to scan source code that is hosted elsewhere, we suggest that you create a mirror of that code on GitHub.

How do I know this PR is legitimate?

This PR is filed by the official LGTM.com GitHub App, in line with the deprecation timeline that was announced on the official GitHub Blog. The proposed GitHub Action workflow uses the official open source GitHub CodeQL Action. If you have any other questions or concerns, please join the discussion here in the official GitHub community!

I have another question / how do I get in touch?

Please join the discussion here to ask further questions and send us suggestions!
opened by lgtm-com[bot] 0
update project platform to NetBeans 14

I had to build it, because the 'latest' Linux release binaries did no run on Debian - see #14 Tried to change as little as possible - no refactoring for current NB/Java features.

opened by nicodex 0
Not working, requires Profiler Server

It should be pointed out more prominently that program requires a profiler server backend and that the default profiler server is no longer in operation, thus rendering the application unfunctional.

On the OCR-D gitter chat it was suggested that https://hub.docker.com/r/ffink/profiler might provide a replacement.

It would also be good to add information that the project has been retired in favor of https://github.com/cisocrgroup/pocoweb (if that's the case).

Thank you.

opened by cboulanger 0

Not starting in linux version

Downloaded, wanted to try, here what happened:

~/Downloads/ocrcorrection/bin$ ./ocrcorrection
Java HotSpot(TM) 64-Bit Server VM warning: Ignoring option PermSize; support was removed in 8.0
Java HotSpot(TM) 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.netbeans.ProxyURLStreamHandlerFactory (file:/home/me/Downloads/ocrcorrection/platform/lib/boot.jar) to field java.net.URL.handler
WARNING: Please consider reporting this to the maintainers of org.netbeans.ProxyURLStreamHandlerFactory
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

Any ideas what could be tried? Thanks in advance. Actually I am not sure yet what this tool can achieve, just wanted to test it, if it would run here, ubuntu 18.04.

opened by michaelsjackson 1

Abbyy XML: empty → NullPointerException
Some Abbyy11 releases (and perhaps other) are sometimes generate xml with empty tags, e. g.

<charParams l="282" t="100"... />

This leads to

[ERROR] 2019-08-08 09:15:10,351 - Exception: java.lang.NullPointerException at jav.correctionBackend.parser.AbbyyXmlChar.<init>(AbbyyXmlChar.java:24)

see in repository: AbbyyXmlChar.java
opened by jbarth-ubhd 0
This page has no tokens

By mistake I reported the problem here: https://github.com/cisocrgroup/Resources as the issue #3 including the Linde133.xml file. The project contains the following files: `user@pocoto:~$ ls -Rlh Linde4PoCoTo/ Linde4PoCoTo/: total 92K drwxrwxrwx 2 user root 4.0K Jun 7 2014 img -rw-r--r-- 1 user user 1.1M Jun 11 11:43 Linde133.h2.db -rw-r--r-- 1 user user 100 Jun 11 11:43 Linde133.lock.db -rw-r--r-- 1 user user 415 Jun 9 09:06 Linde133.ocrproject -rw-r--r-- 1 user user 6.6K Jun 9 09:17 Linde133.trace.db drwxrwxrwx 2 user root 4.0K Jun 7 2014 xml

Linde4PoCoTo/img: total 30M -rwxrwxrwx 1 user root 30M Jun 7 2014 Linde133.tif

Linde4PoCoTo/xml: total 148K -rwxrwxrwx 1 user root 148K Jun 7 2014 Linde133.xml user@pocoto:~$ `

opened by jsbien 0

Owner

CIS OCR Group

Software for OCR of historical documents from CIS, Munich

GitHub

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