Tesseract running error

I have a problem with running tesseract-ocr engine on linux. I've downloaded RUS language data and put it to tessdata directory (/usr/local/share/tessdata). When I'm trying to run tesseract with command tesseract blob.jpg out -l rus , it displays an error:

Error opening data file /usr/local/share/tessdata/eng.traineddata

Please make sure the TESSDATA_PREFIX environment variable is set to the parent directory of your "tessdata" directory.

Failed loading language eng
Tesseract couldn't load any languages!

Could not initialize tesseract.

According to compiling guide, I used export TESSDATA_PREFIX='/usr/local/share/' to point my tessdata directory. Maybe I should edit any config files? Tesseract try to load 'eng' data files instead of 'rus'.

Screenshot: http://i.stack.imgur.com/I0Guc.png


You can grab eng.traineddata Github:

wget https://github.com/tesseract-ocr/tessdata/raw/master/eng.traineddata

Check https://github.com/tesseract-ocr/tessdata for a full list of trained language data.

When you grab the file(s), move them to the /usr/local/share/tessdata folder. Warning: some Linux distributions (such as openSUSE and Ubuntu) may be expecting it in /usr/share/tessdata instead.

# If you got the data from Google, unzip it first!
gunzip eng.traineddata.gz 
# Move the data
sudo mv -v eng.traineddata /usr/local/share/tessdata/

The simpliest way is to install the needed package:

sudo apt-get install tesseract-ocr-eng  #for english
sudo apt-get install tesseract-ocr-tam  #for tamil
sudo apt-get install tesseract-ocr-deu  #for deutsch (German)

As you can notice, it opens the road to others languages (i.e. tesseract-ocr-fra).


I had this error too on the Windows machine.

My solution.

1) Download your language files from https://github.com/tesseract-ocr/tessdata/tree/3.04.00

For example, for eng, I downloaded all files with eng prefix.

2) Put them into tessdata directory inside of some folder. Add this folder into System Path variables as TESSDATA_PREFIX.

Result will be System env var: TESSDATA_PREFIX=D:/Java/OCR And OCR folder has tessdata with languages files.

This is a screenshot of the directory:

enter image description here