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NuGet · #2786 most downloaded on NuGet
Tesseract 5 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.
Last release 4 years ago
no release in 18 months
Release timing varies
gaps range from 2 months to 2.0 years
Some releases are documented
notes for 8 of 22 stable releases
Nothing withdrawn
no release was ever pulled
13 years old
30 releases · first in 2013
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Upgraded to Tesseract 4.1.1 Issue 528
One column per quarter.
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Fixed intermittent crash on initialisation - Issue 231
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Fixed 64 bit support - Issue 232
Requires VS 2013 runtime as the included Tesseract binaries are now compiled with VS 2013.
Fixed memory leak in Pix.BinarizeOtsuAdaptiveThreshold, Pix.BinarizeSauvola, and Pix.BinarizeSauvolaTiled - Issue 218
Support for scaling images - Issue 183
Support for OsdOnly mode - Issue 156
Improved error message when dll failed to load - Issue 141
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