Tess4J

Change Summary:

Version 5.12.0 - 24 June 2024:

Upgrade to Tesseract 5.4.1

Version 5.11.0 - 8 March 2024:

Upgrade to Tesseract 5.3.4

Version 5.10.0 - 4 January 2024:

Update Leptonica 1.84.1

Version 5.9.0 - 3 December 2023:

Upgrade to Tesseract 5.3.3
Update PDFBox and other dependencies
Add API support for multiple regions of interest (ROI) per image or page
Add a utility method to merge hocr file into pdf file

Version 5.8.0 - 29 July 2023:

Upgrade to Tesseract 5.3.2

Version 5.7.0 - 3 April 2023:

Upgrade to Tesseract 5.3.1

Version 5.5.0 - 26 December 2022:

Upgrade to Tesseract 5.3.0

Version 5.3.0 - 7 July 2022:

Upgrade to Tesseract 5.2.0

Version 5.2.1 - 26 April 2022:

Only extract resources appropriate to the platform
Update dependencies

Version 5.2.0 - 4 March 2022:

Upgrade to Tesseract 5.1.0

Version 5.1.1 - 26 January 2022:

Remove ghost4j dependency due to log4j vulnerabilities

Version 5.1.0 - 11 January 2022:

Upgrade to Tesseract 5.0.1

Version 5.0.0 - 1 December 2021:

Upgrade to Tesseract 5.0.0

Version 4.6.0 - 28 November 2021:

Upgrade to Tesseract 4.1.3 (f38e7a7)
Upgrade to Leptonica 1.82.0 (lept4j-1.16.1)
Update dependencies

Version 4.5.5 - 21 July 2021:

Update dependencies

Version 4.5.4 - 15 December 2020:

Dispose Iterator objects after use
Fix possible NPE
Update dependencies

Version 4.5.3 - 23 August 2020:

Update dependencies

Version 4.5.2 - 14 July 2020:

Remove dependencies and references to slf4j bridges
Update dependencies

Version 4.5.1 - 3 January 2020:

Update Leptonica 1.79.0 (lept4j-1.13.0)
Fix Permission denied issue with Ghostscript 9.50

Version 4.5.0 - 27 December 2019:

Upgrade to Tesseract 4.1.1 (7510304)

Version 4.4.0 - 13 July 2019:

Upgrade to Tesseract 4.1.0 (5280bbc)

Version 4.3.1 - 26 December 2018:

Fix Windows build
Improve RenderedImage to ByteBuffer conversion

Version 4.3.0 - 29 October 2018:

Upgrade to Tesseract 4.0.0 (5131699)

Version 4.2.3 - 17 October 2018:

Update pdfbox dependencies

Version 4.2.2 - 3 September 2018:

Fix Invalid memory access exception

Version 3.5.3 - 3 September 2018:

Fix Invalid memory access exception
Fix compatibility issue with JDK9's ByteBuffer.flip() method

Version 4.2.1 - 11 August 2018:

Fix compatibility issue with JDK9's ByteBuffer.flip() method

Version 4.2.0 - 11 August 2018:

Upgrade to Tesseract 4.0.0-beta.4 (fd49206)

Version 4.1.1 - 28 July 2018:

Properly dispose of resources and temporary image files
Clean up code and test output resources
Fix NPE in Java 10

Version 3.5.2 - 2 July 2018:

Port recent fixes and enhancements in 4.1.x

Version 4.1.0 - 20 July 2018:

Upgrade to Tesseract 4.0.0-beta.3 (b502bbf)
Update Lept4J to 1.10.0
Improve handling of PDF
Refactor

Version 3.5.1 - 2 July 2018:

Link Tesseract DLL against Leptonica 1.75.3 (lept4j-1.9.4)

Version 3.5.0 - 29 June 2018:

Upgrade to Tesseract 3.05.02

Version 4.0.2 - 3 May 2018:

Replace JNA string constant Platform.RESOURCE_PREFIX
Update jai-imageio url
Update Lept4J to 1.9.4

Version 3.4.9 - 3 May 2018:

Replace JNA string constant Platform.RESOURCE_PREFIX
Update jai-imageio url
Update Lept4J to 1.6.5

Version 4.0.1 & 3.4.8 - 2 May 2018:

Fix a path issue when extracting native resources from JAR on Windows server

Version 4.0.0 - 16 April 2018:

Upgrade to Tesseract 4.0.0-beta.1 (45bb942)
Update Lept4J to 1.9.3 (Leptonica 1.75.3)

Version 3.4.7 - 16 April 2018:

Update dependencies for Java 9 fixes

Version 3.4.6 - 25 March 2018:

Update PDFBox dependencies

Version 3.4.5 - 24 March 2018:

Remove GS DLL due to license incompatibility
Use PDFBox

Version 3.4.4 - 22 February 2018:

Add image rotate and deskew methods
Update Lept4J to 1.6.3

Version 3.4.3 - 14 January 2018:

Not extract/copy native resource if it exists and has same file size

Version 3.4.2 - 14 November 2017:

Update Lept4J to 1.6.2
Update GhostScript to 9.22
Improve handling of PDF files in multi-threaded environment
Lift limits on number of pages in PDF
Use TESSDATA_PREFIX environment variable by default, if defined

Version 3.4.1 - 22 September 2017:

Not extract/copy native resource if it exists and has same file size
Update Tesseract 3.05.01 (e2e79c4); link against Leptonica 1.74.4
Update Lept4J to 1.6.1

Version 3.4.0 - 1 June 2017:

Upgrade to Tesseract 3.05.01 (2158661)
Update Lept4J to 1.4.0
Add support for jboss-vfs protocol

Version 3.3.1 - 23 March 2017:

Update Lept4J to 1.3.1
Update other dependencies

Version 3.3.0 - 16 February 2017:

Upgrade to Tesseract 3.05 (2ca5d0a)
Update Lept4J to 1.3.0

Version 3.2.2 - 16 February 2017:

Update GhostScript to 9.20
Fix possible NPE with PDF-related codes
Update dependencies
Additional image utility methods

Version 3.2.1 - 29 May 2016:

Properly release Box and Boxa resources
Update Lept4J to 1.2.3

Version 3.2 - 15 May 2016:

Revert JNA to 4.1.0 due to "Invalid calling convention 63" errors invoking GhostScript via Ghost4J on Linux
Update Lept4J to 1.2.1 (Leptonica 1.73)
Recompile Tesseract 3.04.01 DLL against Leptonica 1.73
Update GhostScript Windows binary to 9.19

Version 3.1 - 21 March 2016:

Update Tesseract to 3.04.01 (4ef68a0)
Update Lept4J-1.1.2 (Leptonica 1.72)
Delete ResultRenderer after use to release PDF file handler

Version 3.0 - 25 December 2015:

Upgrade to Tesseract 3.04 (953523b)
Include Lept4J library
Incorporate slf4j and logback libraries for logging
Make GhostScript calls thread safe

Version 2.0 - 30 March 2015:

Upgrade to Tesseract 3.03 (r1050), which is compatible with Tesseract 3.03RC on Linux
Refactor Tesseract class for extensibility and thread-safety
Update English language data for Tesseract 3.02

Version 1.5 - 13 March 2015:

Add UNLV zone file support
Refactor

Version 1.4.1 - 24 January 2015:

Enable use of jna.library.path system property for user-customizable path

Version 1.4 - 18 January 2015:

Refactor to reduce code duplication
Embed Windows native resources in JAR
Autoload Windows native libraries

Version 1.3.0 - 23 July 2014:

Mavenized and hosted at Maven Central Repository and GitHub

Version 1.3 - 31 May 2014:

Update JNA to v4.1.0
Update Ghost4J to v0.5.1
Refactoring
Bundle Tesseract and Leptonica 64-bit DLLs

Version 1.2 - 22 September 2013:

Update Tesseract DLL to r866
More efficient OCR of multiple images
Various minor improvements
Update JNA to v4.0

Version 1.1 - 3 March 2013:

Update Tesseract DLL to r828
Additional API methods, image helper methods, and unit test cases
Improve handling of Unicode character encoding
Fix memory leaks
Add support for determining skew angle and image rotation

Version 1.0 - 30 October 2012:

Upgrade to Tesseract DLL 3.02 (r798)
Implement a new JNA wrapper for the new Tesseract OCR API
Add more unit test cases
Update documentation

Version 0.4 - 1 Nov 2010:

Add JNA Direct Mapping calls, which can provide performance near that of custom JNI

Version 0.3.1 - 26 Aug 2010:

Fix a bug that has erroneously put some words at beginning of line towards end of line

Version 0.3 - 22 Aug 2010:

Include API support for BufferedImage
Clean up codes. Remove unsupported API and files
Document the API

Version 0.2 - 16 Aug 2010:

Add support for compressed, grayscale and colored images; and more image formats, including PNG, BMP, GIF, and PDF, via Java Advanced Imaging Image I/O Tools and Ghost4J libraries

Version 0.1 - 14 Aug 2010:

Initial release; provides a JNA wrapper around Tesseract OCR DLL 2.04
Support uncompressed, monochrome TIFF images