tesseract-ocrHow do I set the Tesseract OCR environment variable?

The Tesseract OCR environment variable can be set in a few different ways.

1. Using the export command in the command line:

export TESSDATA_PREFIX=/usr/local/share/tessdata

2. Adding the export command to the ~/.profile file:

echo 'export TESSDATA_PREFIX=/usr/local/share/tessdata' >> ~/.profile

3. Setting the environment variable in the application code:

# Python
import os
os.environ["TESSDATA_PREFIX"] = "/usr/local/share/tessdata"

# Java
System.setProperty("TESSDATA_PREFIX", "/usr/local/share/tessdata");

The environment variable TESSDATA_PREFIX should be set to the path of the Tesseract data files.

Helpful links

• Tesseract OCR Environment Variable
• Setting Environment Variables in Python
• Setting Environment Variables in Java

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