Error in creating LSTM training data using tesstrain.sh

[Shandigutt]

Hi,

I was trying to create LSTM training data using tesstrain.sh. I got the below error. Can somebody explain me what has gone wrong,

Command I used:

./src/training/tesstrain.sh --fonts_dir ../Support/font --lang sin --linedata_only \

  --noextract_font_properties --langdata_dir ../langdata \

  --tessdata_dir ../tessdata --output_dir ../training/sintrain --fontlist "BhashitaComplex" --training_text ../langdata/sin/sin.training_text 

Extract of the output:

=== Phase E: Generating lstmf files ===

Using TESSDATA_PREFIX=../tessdata

[2018 සැප්තැම්බර් 1 වැනි සෙනසුරාදා 21:41:25 +0300] /usr/local/bin/tesseract /tmp/sin-2018-09-01.E4T/sin.BhashitaComplex.exp0.tif /tmp/sin-2018-09-01.E4T/sin.BhashitaComplex.exp0 --psm 6 lstm.train ../langdata/sin/sin.config

read_params_file: Can't open lstm.train

Tesseract Open Source OCR Engine v4.0.0-beta.4-74-gd8237 with Leptonica

Page 1

Page 2

Page 3

ERROR: /tmp/sin-2018-09-01.E4T/sin.BhashitaComplex.exp0.lstmf does not exist or is not readable

For the complete output please see the attached err.txt

After executing the command I checked the tmp directory it created. It was shown as below,

tharaka@tharaka-laptop-ubuntu:~$ cd /tmp/sin-2018-09-01.E4T/

tharaka@tharaka-laptop-ubuntu:/tmp/sin-2018-09-01.E4T$ ll

total 776

drwx------  2 tharaka tharaka   4096 සැප්   1 21:41 ./

drwxrwxrwt 50 root    root      4096 සැප්   2 00:10 ../

-rw-r--r--  1 tharaka tharaka 249413 සැප්   1 21:41 sin.BhashitaComplex.exp0.box

-rw-r--r--  1 tharaka tharaka 436290 සැප්   1 21:41 sin.BhashitaComplex.exp0.tif

-rw-r--r--  1 tharaka tharaka   9099 සැප්   1 23:27 sin.BhashitaComplex.exp0.txt

-rw-r--r--  1 tharaka tharaka   6543 සැප්   1 21:41 sin.unicharset

-rw-r--r--  1 tharaka tharaka   3053 සැප්   1 21:41 sin.xheights

-rw-r--r--  1 tharaka tharaka  71704 සැප්   1 23:27 tesstrain.log

tharaka@tharaka-laptop-ubuntu:/tmp/sin-2018-09-01.E4T$

My tesseract  version:

tesseract 4.0.0-beta.4-74-gd8237

 leptonica-1.77.0

  libjpeg 8d (libjpeg-turbo 1.5.2) : libpng 1.6.34 : libtiff 4.0.9 : zlib 1.2.11

 Found SSE

My OS details,

tharaka@tharaka-laptop-ubuntu:/tmp/sin-2018-09-01.E4T$ lsb_release -a

No LSB modules are available.

Distributor ID: Ubuntu

Description: Ubuntu 18.04.1 LTS

Release: 18.04

Codename: bionic

Appreciate your support on this.

Thanks

[Shree Devi Kumar]

> read_params_file: Can't open lstm.train

lstm.train is a config file which is not found.

It is there in tesseract/tessdata/configs

Make sure it is there in your tessdata directory or your path and can be found.

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[Shandigutt]

Thank you Shree. Now it works fine

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[kamra....@gmail.com]

I am facing the same issue. I have used following command:

/tesstrain.sh --fonts_dir /usr/share/fonts/ --lang eng --linedata_only --noextract_font_properties --exposures "0" --langdata_dir /home/administrator/Downloads/tesseract-4.0.0/langdata --tessdata_dir /home/administrator/Downloads/tesseract-4.0.0/tessdata --output_dir /home/administrator/pooja/output --fontlist 'FreeMono'

It is giving same error.

=== Starting training for language 'eng'

[Fri Apr 23 00:13:06 IST 2021] /usr/bin/text2image --fonts_dir=/usr/share/fonts/ --font=FreeMono --outputbase=/tmp/font_tmp.7XXGMDw4DE/sample_text.txt --text=/tmp/font_tmp.7XXGMDw4DE/sample_text.txt --fontconfig_tmpdir=/tmp/font_tmp.7XXGMDw4DE

Rendered page 0 to file /tmp/font_tmp.7XXGMDw4DE/sample_text.txt.tif

=== Phase I: Generating training images ===

Rendering using FreeMono

[Fri Apr 23 00:13:09 IST 2021] /usr/bin/text2image --fontconfig_tmpdir=/tmp/font_tmp.7XXGMDw4DE --fonts_dir=/usr/share/fonts/ --strip_unrenderable_words --leading=32 --xsize=3600 --char_spacing=0.0 --exposure=0 --outputbase=/tmp/eng-2021-04-23.RTo/eng.FreeMono.exp0 --max_pages=0 --font=FreeMono --text=/home/administrator/Downloads/tesseract-4.0.0/langdata/eng/eng.training_text

Rendered page 0 to file /tmp/eng-2021-04-23.RTo/eng.FreeMono.exp0.tif

Rendered page 1 to file /tmp/eng-2021-04-23.RTo/eng.FreeMono.exp0.tif

ERROR: /tmp/eng-2021-04-23.RTo/eng.FreeMono.exp0.tif does not exist or is not readable

I have checked for lstm.train file. It is present. Please help to resolve it.

[kamra....@gmail.com]

The issue got resolved. libtiff was missing in the system so not working with tif files