Tesseract Open Source OCR Engine

Tesseract Open Source OCR Engine

tesseract
Releases20
Frequency3 months 5 days
Last Release
This package contains an **OCR engine** - `libtesseract` and a **command line program** - `tesseract`. Tesseract 4 adds a new neural net (LSTM) based OCR engine which is focused on line recognition, but also still supports the legacy Tesseract OCR engine of Tesseract 3 which works by recognizing character patterns. Compatibility with Tesseract 3 is enabled by using the Legacy OCR Engine mode (--oem 0). It also needs traineddata files which support the legacy engine, for example those from the tessdata repository. The lead developer is Ray Smith. The maintainer is Zdenko Podobny. For a list of contributors see [AUTHORS](https://github.com/tesseract-ocr/tesseract/blob/master/AUTHORS) and GitHub's log of [contributors](https://github.com/tesseract-ocr/tesseract/graphs/contributors). Tesseract has **unicode (UTF-8) support**, and can **recognize more than 100 languages** "out of the box". Tesseract supports **various output formats**: plain text, hOCR (HTML), PDF, invisible-text-only PDF, TSV. The master branch also has experimental support for ALTO (XML) output. You should note that in many cases, in order to get better OCR results, you'll need to **[improve the quality](https://github.com/tesseract-ocr/tesseract/wiki/ImproveQuality) of the image** you are giving Tesseract. This project **does not include a GUI application**. If you need one, please see the [3rdParty](https://github.com/tesseract-ocr/tesseract/wiki/User-Projects-%E2%80%93-3rdParty) wiki page. Tesseract **can be trained to recognize other languages**. See [Tesseract Training](https://github.com/tesseract-ocr/tesseract/wiki/TrainingTesseract) for more information.
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VersionDate
Stability
Stability is determined by the version string and my be inaccurate.
5.5.0.20241111 Stable
5.4.0.20240606 Stable
5.3.4.20240503 Stable
5.3.3.20231005 Stable
5.3.1.20230401 Stable
5.3.0.20221214 Stable
5.2.0.20220712 Stable
5.2.0.20220708 Stable
5.1.0.20220510 Stable
5.0.1.20220118 Stable
5.0.1.20220107 Stable
5.0.01.20211030 Stable
5.0.0.20210811-alpha Alpha
5.0.0.20210506-alpha Alpha
5.0.0.20201127-alpha Alpha
5.0.0.20200328-alpha Alpha
5.0.0.20200223-alpha Alpha
5.0.0.20191030-alpha Alpha
5.0.0.20191010-alpha Alpha
5.0.0.20190708-alpha Alpha