I am using tesseract (Pytesseract to be exact)on a video and I am trying to 
get better detections buy trying to train the tesseract on a new font so I 
found a tutorial at:

https://www.youtube.com/watch?v=1v8BPw0Dn0I


And This tutorial give very simple and straight forward direction on how to 
do this (posted below):


*Step 1: *Make box files for images that we want to train

Syntax: tesseract [langname].[fontname].[expN].[file-extension] 
[langname].[fontname].[expN] batch.nochop makebox

Eg:tesseract train.my.exp0.tif train.my.exp0 batch.nochop makebox


{*Note: After making box files we have to change or modify wrongly 
identified characters in box files.}


*Step 2:* Create .tr file (Compounding image file and box file)

Syntax: tesseract [langname].[fontname].[expN].[file-extension] 
[langname].[fontname].[expN] box.train

Eg: tesseract train.my.exp.tif train.my.exp0 box.train


*Step 3:* Extract the charset from the box files (Output for this command 
is unicharset file)

Syntax: unicharset_extractor [langname].[fontname].[expN].box 

Eg: unicharset_extractor train.my.exp0.box


*Step 4:* Create a font_properties file based on our needs.

Syntax: echo "[fontname] [italic (0 or 1)] [bold (0 or 1)] [monospace (0 or 
1)] [serif (0 or 1)] [fraktur (0 or 1)]" [angle bracket should be here] 
font_properties 

Eg: echo "arial 0 0 1 0 0" [angled bracket] font_properties


*Step 5:* Training the data.

Syntax: mftraining -F font_properties -U unicharset -O 
[langname].unicharset [langname].[fontname].[expN].tr

Eg: mftraining -F font_properties -U unicharset -O train.unicharset 
train.my.exp0.tr


*Step 6:*

Syntax: cntraining [langname].[fontname].[expN].tr

Eg: cntraining train.my.exp0.tr

{*Note:After step 5 and step 6 four files were 
created.(shapetable,inttemp,pffmtable,normproto) }


*Step 7:* Rename four files (shapetable,inttemp,pffmtable,normproto) into 
([langname].shapetable,[langname].inttemp,[langname].pffmtable,[langname].normproto)

Syntax: rename filename1 filename2

Eg:

    rename shapetable train.shapetable

    rename inttemp train.inttemp

    rename pffmtable train.pffmtable

    rename normproto train.normproto


*Step 8: *Create .traineddata file

Syntax: combine_tessdata [langname].

Eg: combine_tessdata train.


Move .traineddata file to tesseract programs tessdata directory

C:\Program Files\Tesseract-OCR\tessdata


Run tesseract for trained fronts


tesseract Test2.png stdout -l train


I get a segmentation fault on Step 5.  Has anyone ever had this issue 
before?  Thank you in advance.

-- 
You received this message because you are subscribed to the Google Groups 
"tesseract-ocr" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
To view this discussion on the web visit 
https://groups.google.com/d/msgid/tesseract-ocr/2fee7cdd-16cd-4997-8668-778e4d626c1an%40googlegroups.com.

Reply via email to