How to automate training/text2image?

[Dan9er]

Running 

training/text2image --text=npn_training_text.txt --outputbase=npn.Exo.exp0 --font='Exo' --fonts_dir=/usr/share/fonts

gives the desired output of two files:

• npn.Exo.exo0.tif
• npn.Exo.exp0.box

But running this command for the 162 fonts I want to use is very time consuming and monotonous. I tried running this command:

training/text2image --text=npn_training_text.txt --outputbase=npn --fonts_dir=/usr/share/fonts  --find_fonts --min_coverage=1.0 --render_per_font=true

But that only made files in this format: npn.{fontName}.tif

How do I automate making .tif AND .box files? Do I have to change the --outputbase to something different or do I have to make a .sh script?

PS. I did run training/text2image --find_fonts with --render_per_font set to false, so I have a npn.fontlist.txt file on hand.

[ShreeDevi Kumar]

Please see tesseract.sh script file in training directory.

It automates the whole training process.

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[ShreeDevi Kumar]

You can change the fontlist either in language-specific.sh or as a parameter when you run tesstrain.sh

Read the wiki pages regarding training for more info.

[ShreeDevi Kumar]

tesstrain.sh

Sorry about typo in earlier msg (autocorrect problem on phone)

[Dan9er]

SHIT, I installed 4.0dev from the GitHub repository (which has a new training method and the wiki is SUPER confusing on this!!), I meant to build 3.05.1! How do I uninstall the unstable build and git clone the 3.05 branch?

On Thursday, August 31, 2017 at 12:09:05 PM UTC-4, shree wrote:

Please see tesstrain.sh script file in training directory.

It automates the whole training process.

On 31-Aug-2017 9:29 PM, "Dan9er" <dan9ert...@gmail.com> wrote:

Running 

training/text2image --text=npn_training_text.txt --outputbase=npn.Exo.exp0 --font='Exo' --fonts_dir=/usr/share/fonts

gives the desired output of two files:

• npn.Exo.exo0.tif
• npn.Exo.exp0.box

But running this command for the 162 fonts I want to use is very time consuming and monotonous. I tried running this command:

training/text2image --text=npn_training_text.txt --outputbase=npn --fonts_dir=/usr/share/fonts  --find_fonts --min_coverage=1.0 --render_per_font=true

But that only made files in this format: npn.{fontName}.tif

How do I automate making .tif AND .box files? Do I have to change the --outputbase to something different or do I have to make a .sh script?

PS. I did run training/text2image --find_fonts with --render_per_font set to false, so I have a npn.fontlist.txt file on hand.

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[ShreeDevi Kumar]

git branch 

will show you the branches

git checkout 3.05

will checkout the 3.05 branch

tesstrain.sh is available in 3.05 also.

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

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[Dan9er]

Before, I ran git clone https://github.com/tesseract-ocr/tesseract.git . I then built it and installed it. How do I do clone the 3.05 branch?

Also, you didn't say ANYTHING about uninstalling Tesseract 4.

[ShreeDevi Kumar]

As far as I understand about git, the 3.05 branch would have already been cloned when you cloned the repository. 

Did you try the command 

git branch

in your tesseract folder. 

You should get a response such as 

  3.05

* master

git checkout 3.05

should put you on 3.05 branch

git pull origin

should get you any updates on 3.05 branch

-----------

I usually only build master branch, hence do not know of exact commands to uninstall 4.00.00alpha for building 3.05

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

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[Dan9er]

dan9er@Inspiron-530s:~/Projects/tesseract/tesseract-ocr$ git branch

* master

[ShreeDevi Kumar]

see https://travis-ci.org/tesseract-ocr/tesseract/jobs/245008846

try

git clone --depth=5 --branch=3.05 https://github.com/tesseract-ocr/tesseract.git tesseract-ocr/tesseract

[ShreeDevi Kumar]

also see https://groups.google.com/forum/#!topic/tesseract-ocr/gsM92zNWThM

Well you can face problems if you install several version of tesseract event to different location like /usr, usr/local, /opt (or you have to very careful and you have to be familiar with your system, linking to shared libs etc.).
So I would suggest you to install only one version of tesseract (and uninstall former version before installing new version).
If you want to have several version of tesseract (e.g. you want to compare OCR result) I would suggest you to compile them from source (e.g. in /usr/src) and not installed them. If you want to test particular version you can run it this way:
/usr/src/tesseract-3.03/api/tesseract eurotext.tif eurotext
/usr/src/tesseract-ocr.3.02/api/tesseract eurotext.tif eurotext
/usr/src/tesseract-3.03/api/tesseract is shell wrapper script, and it will take care that correct shared library is used (without installation...).
Zdenko

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

[Dan9er]

There is a sudo make uninstall script. I just ran it and it uninstalled Tesseract 4 perfectly. However, I still have the training tools. What make parameter should I use? training-uninstall?

[Dan9er]

It IS training-uninstall. LUL

training-uninstall:

@cd "$(top_builddir)/training" && $(MAKE) uninstall

[ShreeDevi Kumar]

Thanks!

I have added the info to wiki at

https://github.com/tesseract-ocr/tesseract/wiki/FAQ

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

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