Re: Using Tesseract OCR to extract PDF files in EML file attachment

[Charlie Hull]

My colleagues Eric Pugh and Dan Worley covered OCR and Solr in a 
presentation at our recent London Lucene/Solr Meetup:

https://www.meetup.com/Apache-Lucene-Solr-London-User-Group/events/264579498/
(direct link to slides if you can't find it in the comments 
https://www.slideshare.net/o19s/payloads-and-ocr-with-solr)


HTH

Charlie


On 14/10/2019 11:40, Retro wrote:

Hello, thanks for answer, but let me explain the setup. We are running our
own backup solution for emails (messages from Exchange in MSG format).
Content of these messages then indexed in SOLR. But SOLR can not process
attachments within those MSG files, can not OCR them. This is what I need -
to OCR attachments and get their content indexed in SOLR.

Davis, Daniel (NIH/NLM) [C] wrote

Nuance and ABBYY provide OCR capabilities as well.
Looking at higher level solutions, both indexengines.com and Comvault can
do email remediation for legal issues.

AJ Weber wrote

There are alternative, paid, libraries to parse and extract attachments
from EML files as well
EML attachments will have a mimetype associated with their metadata.

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Charlie Hull
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RE: Using Tesseract OCR to extract PDF files in EML file attachment

[Retro]

Hello, thanks for answer, but let me explain the setup. We are running our
own backup solution for emails (messages from Exchange in MSG format).
Content of these messages then indexed in SOLR. But SOLR can not process
attachments within those MSG files, can not OCR them. This is what I need -
to OCR attachments and get their content indexed in SOLR. 

Davis, Daniel (NIH/NLM) [C] wrote
> Nuance and ABBYY provide OCR capabilities as well.
> Looking at higher level solutions, both indexengines.com and Comvault can
> do email remediation for legal issues.
>> AJ Weber wrote
>> > There are alternative, paid, libraries to parse and extract attachments
>> > from EML files as well
>> > EML attachments will have a mimetype associated with their metadata.
>> Sent from: https://lucene.472066.n3.nabble.com/Solr-User-f472068.html





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RE: Using Tesseract OCR to extract PDF files in EML file attachment

[Davis, Daniel (NIH/NLM) [C]]

Nuance and ABBYY provide OCR capabilities as well.

Looking at higher level solutions, both indexengines.com and Comvault can do 
email remediation for legal issues.

> -Original Message-
> From: Retro 
> Sent: Friday, October 11, 2019 8:06 AM
> To: solr-user@lucene.apache.org
> Subject: Re: Using Tesseract OCR to extract PDF files in EML file attachment
> 
> AJ Weber wrote
> > There are alternative, paid, libraries to parse and extract attachments
> > from EML files as well
> > EML attachments will have a mimetype associated with their metadata.
> 
> Hello, can you give a hint what are those commercial libraries that would do
> the job? We need to index MSG files and OCR attachments within MSG.
> Tesseract can not do this, and I'm having hard time to find the solution.
> Thank you!
> 
> 
> 
> --
> Sent from: https://lucene.472066.n3.nabble.com/Solr-User-f472068.html

Re: Using Tesseract OCR to extract PDF files in EML file attachment

[Retro]

AJ Weber wrote
> There are alternative, paid, libraries to parse and extract attachments 
> from EML files as well
> EML attachments will have a mimetype associated with their metadata.

Hello, can you give a hint what are those commercial libraries that would do
the job? We need to index MSG files and OCR attachments within MSG. 
Tesseract can not do this, and I'm having hard time to find the solution.
Thank you!



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Re: Using Tesseract OCR to extract PDF files in EML file attachment

[Rick Leir]

Tesseract prolly knows nothing of the EML format. Your scripts could pull EML's 
apart.

On April 4, 2017 2:00:19 AM EDT, Zheng Lin Edwin Yeo  
wrote:
>Hi,
>
>Currently, I am able to extract scanned PDF images and index them to
>Solr
>using Tesseract OCR, although the speed is very slow.
>
>However, for EML files with PDF attachments that consist of scanned
>images,
>the Tesseract OCR is not able to extract the text from those PDF
>attachments.
>
>Can we use the same method for EML files? Or what are the suggestions
>that
>we can do to extract those attachments?
>
>I'm using Solr 6.5.0
>
>Regards,
>Edwin

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