tesseract-ocrHow do I install and use Tesseract OCR on Ubuntu?

1. Install Tesseract OCR on Ubuntu:

   sudo apt-get install tesseract-ocr

2. Install additional language packs:

   sudo apt-get install tesseract-ocr-<lang>

   Replace <lang> with the two-letter code for the language you want to use. For example, to install the English language pack, use sudo apt-get install tesseract-ocr-eng.

3. Test Tesseract OCR:

   tesseract --version

   Output:

   tesseract 4.1.1
   leptonica-1.78.0
   libgif 5.1.4 : libjpeg 8d (libjpeg-turbo 1.5.2) : libpng 1.6.34 : libtiff 4.0.9 : zlib 1.2.11

4. Run Tesseract OCR on an image:

   tesseract image.png output

   This will create a text file output.txt with the OCR result.

5. Improve Tesseract OCR accuracy: You can improve the accuracy of Tesseract OCR by providing a training data file (<lang>.traineddata) for the language you are using. You can find these files on the Tesseract OCR GitHub page.

6. Use Tesseract OCR from a programming language: Tesseract OCR can be used from a variety of programming languages, including Python, Java, and C++. You can find instructions for using Tesseract OCR from each of these languages on the Tesseract OCR Wiki page.

7. Further reading:

   • Tesseract OCR Wiki
   • Tesseract OCR GitHub page
   • Using Tesseract OCR with Python

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