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2. Tesseract (software) - Wikipedia

   en.wikipedia.org/wiki/Tesseract_(software)

   Tesseract is an optical character recognition engine for various operating systems. [5] It is free software, released under the Apache License. [1] [6] [7] Originally developed by Hewlett-Packard as proprietary software in the 1980s, it was released as open source in 2005 and development was sponsored by Google in 2006.

3. Copyfish - Wikipedia

   en.wikipedia.org/wiki/Copyfish

   After a user marks the text in an image, Copyfish extracts it from a website, video or PDF document. [3] [4] Copyfish was first published in October 2015.

4. Optical character recognition - Wikipedia

   en.wikipedia.org/wiki/Optical_character_recognition

   Video of the process of scanning and real-time optical character recognition (OCR) with a portable scanner. Optical character recognition or optical character reader (OCR) is the electronic or mechanical conversion of images of typed, handwritten or printed text into machine-encoded text, whether from a scanned document, a photo of a document, a scene photo (for example the text on signs and ...

5. Information extraction - Wikipedia

   en.wikipedia.org/wiki/Information_extraction

   Information extraction. Information extraction (IE) is the task of automatically extracting structured information from unstructured and/or semi-structured machine-readable documents and other electronically represented sources. Typically, this involves processing human language texts by means of natural language processing (NLP). [1]

6. Intelligent character recognition - Wikipedia

   en.wikipedia.org/wiki/Intelligent_character...

   Intelligent character recognition (ICR) makes use of continuously improving algorithms to collect more information about the variances in hand-printed characters and more precisely identify them. ICR, which was created in the early 1990s to aid in the automation of forms processing, enables the conversion of manually entered data into text that ...

7. List of PDF software - Wikipedia

   en.wikipedia.org/wiki/List_of_PDF_software

   Extracting embedded text is a common feature, ... Supports OCR and export of PDF text and images. Sumatra PDF: A free (GPL), open source PDF reader based on MuPDF. It ...

8. GOCR - Wikipedia

   en.wikipedia.org/wiki/GOCR

   Type. Optical character recognition. License. GNU General Public License. Website. www-e.uni-magdeburg.de /jschulen /ocr / jocr.sourceforge.net. GOCR (or JOCR) is a free optical character recognition program, initially written by Jörg Schulenburg. It can be used to convert or scan image files (portable pixmap or PCX) into text files. [1]

9. Poppler (software) - Wikipedia

   en.wikipedia.org/wiki/Poppler_(software)

   Poppler is a free and open-source software library for rendering Portable Document Format (PDF) documents. Its development is supported by freedesktop.org. Commonly used on Linux systems, [4] it powers the PDF viewers of the GNOME and KDE desktop environments.