tesseract: tesseract (an OCR system) tesseract: tesseract: A commercial quality OCR engine originally developed at HP between tesseract: 1985 and 1995. In 1995, this engine was among the top 3 evaluated by tesseract: UNLV. It was open-sourced by HP and UNLV in 2005. tesseract: tesseract: Homepage: https://github.com/tesseract-ocr/tesseract tesseract: tesseract: tesseract: tesseract: