Re: [tesseract-ocr] train tesseract OCR 4.0

[Shree Devi Kumar]

Please see https://github.com/tesseract-ocr/tesseract/wiki and
https://github.com/tesseract-ocr/tesseract/wiki/TrainingTesseract-4.00#fine-tuning-for-impact

On Mon, 22 Oct 2018, 06:59 kislay bajpai,  wrote:

> Hello,
>
> Sorry to disturb you, actually i am very new with tesseract and getting no
> idea, how to train it.
> Please help me out. I am in big trouble.
>
> version - tesseract4.0 alpha
> OS - ubuntu16.04 and RHEL 7.3 (any one i can use)
>
> On Tue, Oct 16, 2018 at 7:10 PM Shree Devi Kumar 
> wrote:
>
>> Please do not use tesseract 4.0 alpha. There have been many changes since
>> then.
>>
>> Use the latest code from github, which is 4.0.0-rc3 or install from
>> Alex's PPA or from ub mannheim (for Windows).
>>
>> Please read the wiki pages about training for new font for tesseract 4 -
>> fine tuning for Impact.
>>
>> On Tue, 16 Oct 2018, 08:33 kislay bajpai, 
>> wrote:
>>
>>> Hello Shree,
>>>
>>> I am confused how to train tesseract 4.0 alpha for new font (E 13B).
>>> Please help me for it.
>>> .
>>>
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>
>
> --
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> Kislay Bajpai
>
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Re: [tesseract-ocr] train tesseract OCR 4.0

[kislay bajpai]

Hello,

Sorry to disturb you, actually i am very new with tesseract and getting no
idea, how to train it.
Please help me out. I am in big trouble.

version - tesseract4.0 alpha
OS - ubuntu16.04 and RHEL 7.3 (any one i can use)

On Tue, Oct 16, 2018 at 7:10 PM Shree Devi Kumar 
wrote:

> Please do not use tesseract 4.0 alpha. There have been many changes since
> then.
>
> Use the latest code from github, which is 4.0.0-rc3 or install from Alex's
> PPA or from ub mannheim (for Windows).
>
> Please read the wiki pages about training for new font for tesseract 4 -
> fine tuning for Impact.
>
> On Tue, 16 Oct 2018, 08:33 kislay bajpai, 
> wrote:
>
>> Hello Shree,
>>
>> I am confused how to train tesseract 4.0 alpha for new font (E 13B).
>> Please help me for it.
>> .
>>
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Re: [tesseract-ocr] train tesseract OCR 4.0

[kislay bajpai]

Hello Shree, 

I am confused how to train tesseract 4.0 alpha for new font (E 13B). Please 
help me for it.

On Thursday, March 23, 2017 at 5:24:59 PM UTC+5:30, shree wrote:
>
> To read characters from an image, it is not necessary to train it. Just 
> use an appropriate traineddata.
>
> Training is required only if it is  a new language or font or some such 
> special circumstance.
>
> Read the wiki for documentation.
>
> https://github.com/tesseract-ocr/tesseract/wiki/Command-Line-Usage
>
> https://github.com/tesseract-ocr/tesseract/wiki/TrainingTesseract
>
> ShreeDevi
> 
> भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com
>
> On Wed, Mar 22, 2017 at 10:00 PM, Saurabh Srivastav <
> saurabhkum...@gmail.com > wrote:
>
>> Thank you shree for your valuable reply. But now i have created box files 
>> for a particuler image and trained it..but still i am missing something, 
>> may you please help me what i have to do after creating box file for that 
>> image and make tesseract to read the characters from that image.
>>
>> thanks and regards.
>>
>> On Friday, March 3, 2017 at 12:53:31 PM UTC+5:30, shree wrote:
>>>
>>> screenshot of warning  means that your image does not have resolution 
>>> info. Your OCR output file should have been created.
>>>
>>> Training 4.0 is not easy. Please see 
>>> https://github.com/tesseract-ocr/tesseract/wiki/4.0-with-LSTM
>>>
>>> ShreeDevi
>>> 
>>> भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com
>>>
>>> On Fri, Mar 3, 2017 at 12:17 PM, Saurabh Srivastav  
>>> wrote:
>>>
 how to train tesseract 4.0. Please help me..

 thanks,
 Saurabh Srivastav

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Re: [tesseract-ocr] train tesseract OCR 4.0

[srnsp92]

You can use *.* when identifying the files.. but you should be careful only 
image files are only supplied... as it can take all available files, 
because * means it takes input for all the files.

1)I request you can help me with posts i had posted today.. 
2) And please guide how can i generate lstm files for images which i have 
to use..
and pls explain how you have followed...


On Tuesday, April 4, 2017 at 9:38:24 PM UTC+5:30, Saurabh Srivastav wrote:
>
> thank you shree ,
> you always help me.
>
> but i still have one problem that i wrote a bash script which trace the 
> all images with .jpg extension and make their output files as the name of 
> image.
> but i want that when i run script it trace more images with some different 
> extensions like .jpg , .jpeg , .png .is it possible? if it is, then please 
> help me out.
>
>
> thank you shree,
>
>

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Re: [tesseract-ocr] train tesseract OCR 4.0

[Saurabh Srivastav]

thank you shree ,
you always help me.

but i still have one problem that i wrote a bash script which trace the all 
images with .jpg extension and make their output files as the name of image.
but i want that when i run script it trace more images with some different 
extensions like .jpg , .jpeg , .png .is it possible? if it is, then please 
help me out.


thank you shree,

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Re: [tesseract-ocr] train tesseract OCR 4.0

[ShreeDevi Kumar]

Tesstrain.sh generates a file called eng.training_files.txt

You are using command without .text extension

Check the name of generated file and use that.

I have found that editing that file also gives errors.
- excuse the brevity, sent from mobile

On 04-Apr-2017 7:01 PM,  wrote:

> I am trying to tesseract 4,, and i am getting folowing error,,
>
> command used:
>
> mkdir -p /home/p/Documents/T/engoutput
> /home/p/Documents/T/tesseract-master/training/lstmtraining -U
> /home/p/Documents/T/img_frm_3/unicharset \
>   --script_dir /home/p/Documents/T/TESS_4_ALPHA/langdata-master
> --debug_interval 100 \
>   --train_listfile /home/p/Documents/T/TESS_4_
> ALPHA/langdata-master/eng/eng.training_files \
>   --eval_listfile /home/p/Documents/T/TESS_4_
> ALPHA/langdata-master/eng/eng.training_files \
>   --max_iterations 5000 &>/home/p/Documents/T/basetrain.log
>
> used for log:
> tail -f basetrain.log
> Failed to load list of training filenames from /home/p/Documents/T/TESS_4_
> ALPHA/langdata-master/eng/eng.training_files
> tail: basetrain.log: file truncated
>
>
>
> error getting:
> Failed to load list of training filenames from /home/p/Documents/T/TESS_4_
> ALPHA/langdata-master/eng/eng.training_files
>
>
>
>
> On Tuesday, April 4, 2017 at 6:23:33 PM UTC+5:30, shree wrote:
>>
>> See
>>
>> https://github.com/tesseract-ocr/tesseract/blob/master/train
>> ing/tesstrain.sh
>>
>> https://github.com/tesseract-ocr/tesseract/blob/master/train
>> ing/tesstrain_utils.sh
>>
>> https://github.com/tesseract-ocr/tesseract/blob/master/train
>> ing/language-specific.sh
>>
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> 40googlegroups.com
> 
> .
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Re: [tesseract-ocr] train tesseract OCR 4.0

[srnsp92]

I am trying to tesseract 4,, and i am getting folowing error,, 

command used: 

mkdir -p /home/p/Documents/T/engoutput
/home/p/Documents/T/tesseract-master/training/lstmtraining -U 
/home/p/Documents/T/img_frm_3/unicharset \
  --script_dir /home/p/Documents/T/TESS_4_ALPHA/langdata-master 
--debug_interval 100 \
  --train_listfile 
/home/p/Documents/T/TESS_4_ALPHA/langdata-master/eng/eng.training_files \
  --eval_listfile 
/home/p/Documents/T/TESS_4_ALPHA/langdata-master/eng/eng.training_files \
  --max_iterations 5000 &>/home/p/Documents/T/basetrain.log

used for log:
tail -f basetrain.log 
Failed to load list of training filenames from 
/home/p/Documents/T/TESS_4_ALPHA/langdata-master/eng/eng.training_files
tail: basetrain.log: file truncated



error getting: 
Failed to load list of training filenames from 
/home/p/Documents/T/TESS_4_ALPHA/langdata-master/eng/eng.training_files




On Tuesday, April 4, 2017 at 6:23:33 PM UTC+5:30, shree wrote:
>
> See
>
>
> https://github.com/tesseract-ocr/tesseract/blob/master/training/tesstrain.sh
>
>
> https://github.com/tesseract-ocr/tesseract/blob/master/training/tesstrain_utils.sh
>
>
> https://github.com/tesseract-ocr/tesseract/blob/master/training/language-specific.sh
>

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Re: [tesseract-ocr] train tesseract OCR 4.0

[ShreeDevi Kumar]

See

https://github.com/tesseract-ocr/tesseract/blob/master/training/tesstrain.sh

https://github.com/tesseract-ocr/tesseract/blob/master/training/tesstrain_utils.sh

https://github.com/tesseract-ocr/tesseract/blob/master/training/language-specific.sh

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Re: [tesseract-ocr] train tesseract OCR 4.0

[srnsp92]

Hello ShreeDevi,

https://medium.com/apegroup-texts/training-tesseract-for-labels-receipts-and-such-690f452e8f79

In the link, we can see a full fledged tutorial of tesseract 3.0 version, 
of using it and training it. Can you please clarify the below points...?

https://github.com/tesseract-ocr/tesseract/wiki/TrainingTesseract-4.00

But  in the github link, i feel its good if they elaborate more..

1) How should i train tesseract if i dont know or i may get random fonts in 
image files. ?

2) In github tutorial, its specified that we should skip clustering steps 
(mftraining, cntraining, shapeclustering)  ?

3) And I want to generate a trained data file, and want to merge with 
tessdata(already present ) and dont want to replace it?


Can you please specify how to achieve these steps..?


Thank You.






On Monday, April 3, 2017 at 8:11:33 PM UTC+5:30, shree wrote:
>
> Saurabh,
>
> It depends on what you want to do with the bash script.
>
> Here is a sample of a script I used to compare results using diff tessdata 
> files by looping thru a set of image files. Google the bash commands to 
> figure out what they do!
>
> #!/bin/bash
> set -vx
> export TESSDATA_PREFIX=/mnt/c/Users/User/shree/tesseract-ocr
>
> img_files=$(ls *.jpeg)
> for img_file in ${img_files}; do
> time tesseract ${img_file} ${img_file%.*}-ssd  -l ssd
> time tesseract ${img_file} ${img_file%.*}-ssdsmall  --psm 6 --oem 
> 1 -l ssdsmall 
> time tesseract ${img_file} ${img_file%.*}-eng  --psm 6 --oem 1 -l 
> eng 
> done
>
>
> ShreeDevi
> 
> भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com
>
> On Mon, Apr 3, 2017 at 7:10 PM, Saurabh Srivastav  > wrote:
>
>> hello  shree ! thank you for your help.
>> may you please help me how can i write a bash  script for tesseract.
>>
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Re: [tesseract-ocr] train tesseract OCR 4.0

[Saurabh Srivastav]

shree,
 actually i want a bash script which run tesseract  and store ouput 
file in a folder..

kindly help me to make this type of bash script.


thank you.

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Re: [tesseract-ocr] train tesseract OCR 4.0

[ShreeDevi Kumar]

Saurabh,

It depends on what you want to do with the bash script.

Here is a sample of a script I used to compare results using diff tessdata
files by looping thru a set of image files. Google the bash commands to
figure out what they do!

#!/bin/bash
set -vx
export TESSDATA_PREFIX=/mnt/c/Users/User/shree/tesseract-ocr

img_files=$(ls *.jpeg)
for img_file in ${img_files}; do
time tesseract ${img_file} ${img_file%.*}-ssd  -l ssd
time tesseract ${img_file} ${img_file%.*}-ssdsmall  --psm 6 --oem 1
-l ssdsmall
time tesseract ${img_file} ${img_file%.*}-eng  --psm 6 --oem 1 -l
eng
done


ShreeDevi

भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com

On Mon, Apr 3, 2017 at 7:10 PM, Saurabh Srivastav <
saurabhkumarsrivas...@gmail.com> wrote:

> hello  shree ! thank you for your help.
> may you please help me how can i write a bash  script for tesseract.
>
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Re: [tesseract-ocr] train tesseract OCR 4.0

[Saurabh Srivastav]

hello  shree ! thank you for your help.
may you please help me how can i write a bash  script for tesseract.

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Re: [tesseract-ocr] train tesseract OCR 4.0

[Saurabh Srivastav]

Thank you shree for your valuable reply. But now i have created box files 
for a particuler image and trained it..but still i am missing something, 
may you please help me what i have to do after creating box file for that 
image and make tesseract to read the characters from that image.

thanks and regards.

On Friday, March 3, 2017 at 12:53:31 PM UTC+5:30, shree wrote:
>
> screenshot of warning  means that your image does not have resolution 
> info. Your OCR output file should have been created.
>
> Training 4.0 is not easy. Please see 
> https://github.com/tesseract-ocr/tesseract/wiki/4.0-with-LSTM
>
> ShreeDevi
> 
> भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com
>
> On Fri, Mar 3, 2017 at 12:17 PM, Saurabh Srivastav  > wrote:
>
>> how to train tesseract 4.0. Please help me..
>>
>> thanks,
>> Saurabh Srivastav
>>
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>
>

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Re: [tesseract-ocr] train tesseract OCR 4.0

[ShreeDevi Kumar]

screenshot of warning  means that your image does not have resolution info.
Your OCR output file should have been created.

Training 4.0 is not easy. Please see
https://github.com/tesseract-ocr/tesseract/wiki/4.0-with-LSTM

ShreeDevi

भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com

On Fri, Mar 3, 2017 at 12:17 PM, Saurabh Srivastav 
wrote:

> how to train tesseract 4.0. Please help me..
>
> thanks,
> Saurabh Srivastav
>
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> msgid/tesseract-ocr/f1782fd1-97a1-40db-8ba0-f003052f39ae%
> 40googlegroups.com
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