Would like to contribute small change to expose --ptsize option to tesstrain.sh

[David Maung]

Hello,

I am exploring training with different size fonts to see if it makes a difference in my situation.  To do this, I exposed the --ptsize option from text2image to tesstrain.sh.

text2image has an option of --ptsize which defaults to 12 if not set.  I made a small change to tesstrain_utils.sh to expose this option to tesstrain.sh.  It can then be used as follows:

src/training/tesstrain.sh --fonts_dir /usr/share/fonts --lang eng --linedata_only \

  --noextract_font_properties --langdata_dir ../langdata \

  --tessdata_dir ./tessdata --output_dir ~/tesstutorial/engtrain --ptsize 16

If this is of interest, how can I contribute the change?  The file differences are as follows:

@@ -44,6 +44,7 @@ RUN_SHAPE_CLUSTERING=false

 SAVE_BOX_TIFF=false

 WORKSPACE_DIR=$(mktemp -d)

 X_SIZE=3600

+PT_SIZE=12

 

 # set TESSDATA_PREFIX as empty, if not defined in environment to avoid an unbound variable

 TESSDATA_PREFIX=${TESSDATA_PREFIX:-}

@@ -153,6 +154,9 @@ parse_flags() {

             --maxpages)

                 parse_value "MAX_PAGES" ${ARGV[$j]:-}

                 i=$j ;;

+            --ptsize)

+                parse_value "PT_SIZE" ${ARGV[$j]:-}

+                i=$j ;;

             --my_boxtiff_dir)

                 parse_value "MY_BOXTIFF_DIR" ${ARGV[$j]:-}

                 i=$j ;;

@@ -244,7 +248,7 @@ initialize_fontconfig() {

     export FONT_CONFIG_CACHE

     local sample_path=${FONT_CONFIG_CACHE}/sample_text.txt

     echo "Text" >${sample_path}

-    run_command text2image --fonts_dir=${FONTS_DIR} \

+    run_command text2image --fonts_dir=${FONTS_DIR} --ptsize ${PT_SIZE} \

         --font="${FONTS[0]}" --outputbase=${sample_path} --text=${sample_path} \

         --fontconfig_tmpdir=${FONT_CONFIG_CACHE}

 }

@@ -275,7 +279,7 @@ generate_font_image() {

       fi

     done

 

-    run_command text2image ${common_args} --font="${font}" \

+    run_command text2image ${common_args} --font="${font}" --ptsize ${PT_SIZE} \

         --text=${TRAINING_TEXT}  ${TEXT2IMAGE_EXTRA_ARGS:-}

     check_file_readable ${outbase}.box ${outbase}.tif

[Zdenko Podobny]

Can you create a pull request to  https://github.com/tesseract-ocr/tesseract ?

Zdenko

pi 1. 11. 2019 o 19:08 David Maung <davidm...@gmail.com> napísal(a):

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[David Maung]

I thought I need to upload my branch to create a pull request?  When I try and upload my branch, it errors with no write permission.

remote: Permission to tesseract-ocr/tesseract.git denied to DavidMaung.

fatal: unable to access 'https://github.com/tesseract-ocr/tesseract.git/': The requested URL returned error: 403

David

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[Zdenko Podobny]

No. you need to fork tesseract on github and from there you can send pull request to official tesseract.

Zdenko

pi 1. 11. 2019 o 19:38 David Maung <davidm...@gmail.com> napísal(a):

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[David Maung]

I did it!  Thank you.

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