topic Tesseract full integration - CE3.4b in Alfresco Archive

Tesseract full integration - CE3.4b

normando — Mon, 15 Nov 2010 17:29:03 GMT

Hello all.I was writed a how to in spanish forums to integrate tesseract OCR into alfresco. I repeat the post here because that will be useful for somebody.Sorry for my bad language. I will try to do my best.Before beging the howto, it is importante to make a few considerations:1- Tesseract only sup

Re: Tesseract full integration - CE3.4b

fatal — Tue, 07 Dec 2010 10:58:27 GMT

Hi,

I think they are a problem with

Made then as executable file (chown 755 ocr)

I have another problem, i have create my extension but OCR don't start when i upload my .tif :s
it's possible to create screenshoot ? ty

Sorry my english is very bad (3.4.B version)

Re: Tesseract full integration - CE3.4b

kockiren — Thu, 20 Jan 2011 10:46:59 GMT

I has the same problem, my solution was to correct the Path in the XML document to: /opt/alfresco-3.4c/ocr

Regards
Rene

Re: Tesseract full integration - CE3.4b

nacira_dahmani — Thu, 03 Feb 2011 11:04:11 GMT

hello to every body, sorry for my bad english language
i use Windows Vista not linux or other os, i use Alfresco 3.3 and i look if there are anyone completed a successful integration of Tesseract with Alfresco but under Windows. Please help me please because it is very impotant for me, Any help is appreciated, Thank you very well …..

Re: Tesseract full integration - CE3.4b

dark_rider — Sat, 19 Feb 2011 19:49:58 GMT

Thanks for your post… It is very useful for me.

Re: Tesseract full integration - CE3.4b

nacira_dahmani — Sun, 27 Feb 2011 09:11:29 GMT

Good morning for every body, i work with Windows Vista and I seek for a script to integrate tesseract OCR into alfrescoa , if somebody can help me I would be to him very grateful, thank you for any help and sorry for my bad use of the language.

Re: Tesseract full integration - CE3.4b

nicolasraoul — Wed, 02 Mar 2011 04:50:15 GMT

Thanks a lot Normando!
After following just those instructions, any TIFF that I upload becomes findable with full text search 🙂
Nicolas Raoul

Re: Tesseract full integration - CE3.4b

plepot — Fri, 17 Jun 2011 04:16:59 GMT

Hello,

Here is the Windows version of the Alfresco Tesseract integration. The solution is validated under community 3.4d

The bean:

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE beans PUBLIC '-//SPRING//DTD BEAN//EN' 'http://www.springframework.org/dtd/spring-beans.dtd'>
<beans default-lazy-init="false" default-autowire="no" default-dependency-check="none">
  <bean id="transformer.worker.ocr.tiff" class="org.alfresco.repo.content.transform.RuntimeExecutableContentTransformerWorker" lazy-init="default" autowire="default" dependency-check="default">
    <property name="mimetypeService">
      <ref bean="mimetypeService" />
    </property>
    <property name="checkCommand">
      <bean class="org.alfresco.util.exec.RuntimeExec" lazy-init="default" autowire="default" dependency-check="default">
        <property name="commandsAndArguments">
          <map>
            <entry key="Windows.*">
              <list>
                <value>C:\Windows\System32\cmd.exe</value>
      <value>/C</value>
      <value>dir c:\Alfresco\ocr.bat</value>
              </list>
            </entry>
          </map>
        </property>
        <property name="errorCodes">
          <value>1</value>
        </property>
      </bean>
    </property>
    <property name="transformCommand">
      <bean class="org.alfresco.util.exec.RuntimeExec" lazy-init="default" autowire="default" dependency-check="default">
        <property name="commandsAndArguments">
          <map>
            <entry key="Windows.*">
              <list>
                <value>C:\Windows\System32\cmd.exe</value>
      <value>/C</value>
      <value>C:\Alfresco\ocr.bat</value>
                <value>"${source}"</value>
                <value>"${target}"</value>
              </list>
            </entry>
          </map>
        </property>
        <property name="errorCodes">
          <value>1,2</value>
        </property>
      </bean>
    </property>
    <property name="explicitTransformations">
      <list>
        <bean class="org.alfresco.repo.content.transform.ExplictTransformationDetails" lazy-init="default" autowire="default" dependency-check="default">
          <property name="sourceMimetype">
            <value>image/tiff</value>
          </property>
          <property name="targetMimetype">
            <value>text/plain</value>
          </property>
        </bean>
      </list>
    </property>
  </bean>
  <bean id="transformer.ocr.tiff" class="org.alfresco.repo.content.transform.ProxyContentTransformer" parent="baseContentTransformer" lazy-init="default" autowire="default" dependency-check="default">
    <property name="worker">
      <ref bean="transformer.worker.ocr.tiff" />
    </property>
  </bean>
</beans>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

The batch wrapper to save in the root directory of Alfresco.

REM to see what happens
echo from %1 to %2 >>C:\tmp\ocrtransform.log


copy /Y %1 C:\TMP\%~n1%~x1

REM  call tesseract and redirect output to $TARGET
"C:\Program Files (x86)\Tesseract-OCR\tesseract.exe" C:\TMP\%~n1%~x1 %~d2%~p2%~n2 -l fra
del C:\TMP\%~n1%~x1‍‍‍‍‍‍‍‍‍

You may need to tweak the directories to your system

Re: Tesseract full integration - CE3.4b

togum — Fri, 30 Sep 2011 08:05:16 GMT

Thank you very much plepot.
It's work for me. But, does tesseract has the ability for converting TIF to PDF?

Thanks in advanced.

Re: Tesseract full integration - CE3.4b

plepot — Sat, 03 Dec 2011 19:57:50 GMT

Hello,

Sorry for (very) late reply. Actually, no tesseract produces a text file attached to the Alfresco document. I'd think that if you want to convert TIF to PDF you'd have to create a code within Alfresco. I do not know how to do it.

Regards,
Philippe

Re: Tesseract full integration - CE3.4b

mlauer — Mon, 05 Dec 2011 16:24:06 GMT

You can define a transformer from tiff to pdf. The original tiff will be shown in the PDF with hidden Textlayer - searchable, markable, indexed by alfresco.
You can do that in a shell-script using optimize2bw, tesseract, hocr2pdf and ptftk.

Best Regards
ml

Thank you very much plepot.
It's work for me. But, does tesseract has the ability for converting TIF to PDF?

Thanks in advanced.

Re: Tesseract full integration - CE3.4b

togum — Tue, 31 Jan 2012 03:34:26 GMT

Thank you very much mlauer

Sorry long time no update
I'll try to use shell-script that you've mentioned.

You can define a transformer from tiff to pdf. The original tiff will be shown in the PDF with hidden Textlayer - searchable, markable, indexed by alfresco.
You can do that in a shell-script using optimize2bw, tesseract, hocr2pdf and ptftk.

Best Regards
ml

Re: Tesseract full integration - CE3.4b

mlauer — Tue, 31 Jan 2012 09:19:21 GMT

Hi

Here is the shell script (Ubuntu 10.4):


#!/bin/bash
#############################################################
# tiff_ocr2pdf.sh
# TIF-Datei in durchsuchbares PDF umwandeln
#############################################################
# 31.10.2011 ml - neu erstellt
#############################################################
SOURCE=$1
TARGET=$2
TEMP=`mktemp -t tiffocrXXXXXXXX`
TEMP="${TEMP}_"

tiffsplit $1 "${TEMP}"

for TIFF in ${TEMP}*
do
# segmentation fault bei –denoise!
   optimize2bw –dpi 300 -i ${TIFF} -o ${TIFF}opt.tif
   tesseract ${TIFF}opt.tif ${TIFF}tmp hocr
   hocr2pdf -s -i ${TIFF} -o ${TIFF}.pdf < ${TIFF}tmp.html
done
# PDFs zusammenfassen
pdftk ${TEMP}*.pdf output $2
#############################################################
# aufraeumen
rm ${TEMP}*
‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

tesseract 3.x is neeeded!

Re: Tesseract full integration - CE3.4b

wmay — Wed, 01 Aug 2012 14:48:20 GMT

Hi,

We have implemented an OCR server integrated with Alfresco, which can be used as transformer or via Javascript and Java. It runs on a separate OCR server and supports Abbyy and Google OCR. for more informaiton see here - https://forums.alfresco.com/en/viewtopic.php?f=33&t=44739

Re: Tesseract full integration - CE3.4b

stephane77 — Fri, 11 Jan 2013 15:02:35 GMT

Hello,

I just installed alfresco on a windows server 2008 R2 and I saw that you have integrated OCR Alfresco.

I do not know how you integrated the scripts under alfresco, I do not no engineer.

Can you help me?

Thank you for your help

happy New Year

Re: Tesseract full integration - CE3.4b

kylee — Fri, 14 Aug 2015 05:31:53 GMT

Hi,

I have tried the configuration as suggested on Normando on Alfresco CE 4.2f on Ubuntu 14.04 and it doesn't seem to work. the target file size (txt) is 0.

I have done some basic troubleshooting and I thik it only boils down to the line


# call tesseract and redirect output to $TARGET
/usr/bin/tesseract $TMPDIR/$OCRFILE ${TARGET%\.*} -l eng
‍‍‍‍

I uploaded a tif file (1 page) into share and then

I did an echo of:
1) echo "$TMPDIR/$OCRFILE" >>/tmp/ocrtransform.log and it gives


/tmp/RuntimeExecutableContentTransformerWorker_source_2064892405511152431.tiff.tif
‍‍‍

2) echo "$TARGET" >>/tmp/ocrtransform.log


/opt/alfresco-4.2.f/tomcat/temp/Alfresco/RuntimeExecutableContentTransformerWorker_target_3161704112042319622.txt
‍‍‍

I have tried using the command line and it is OK. Any suggestions please?