Tess4J / News: Recent posts

Tess4J v3.4.1 Release

Tess4J, a Java JNA wrapper for Tesseract OCR API.

This release includes the following enhancements:

  • 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

http://tess4j.sf.net

Posted by Quan Nguyen 2017-10-12

Lept4J v1.6.1 Release

Lept4J, a Java JNA wrapper for Leptonica Image Processing Library, provides support for Leptonica native types and data structures — such as Pix, Boxa, Pixa, etc. — used in Tesseract OCR API.

This release includes the following improvements:

  • Not extract/copy native resource if it exists and has same file size
  • Add jp2k support

http://tess4j.sourceforge.net/lept4j.html

Posted by Quan Nguyen 2017-10-12

Lept4J v1.6.0 Release

Lept4J, a Java JNA wrapper for Leptonica Image Processing Library, provides support for Leptonica native types and data structures — such as Pix, Boxa, Pixa, etc. — used in Tesseract OCR API.

This release includes the following improvement:

Upgrade to Leptonica 1.74.4

http://tess4j.sourceforge.net/lept4j.html

Posted by Quan Nguyen 2017-06-15

Lept4J v1.5.0 Release

Lept4J, a Java JNA wrapper for Leptonica Image Processing Library, provides support for Leptonica native types and data structures — such as Pix, Boxa, Pixa, etc. — used in Tesseract OCR API.

This release includes the following improvement:

Upgrade to Leptonica 1.74.2

http://tess4j.sourceforge.net/lept4j.html

Posted by Quan Nguyen 2017-06-15

Tess4J v3.4.0 Release

Tess4J, a Java JNA wrapper for Tesseract OCR API.

This release includes the following enhancements:

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

http://tess4j.sf.net

Posted by Quan Nguyen 2017-06-02

Tess4J v3.3.1 Release

Tess4J, a Java JNA wrapper for Tesseract OCR API.

This release includes the following enhancements:

  • Update Lept4J to 1.3.1
  • Update other dependencies

http://tess4j.sf.net

Posted by Quan Nguyen 2017-05-21

Tess4J v3.3.0 Release

Tess4J, a Java JNA wrapper for Tesseract OCR API.

This release includes the following enhancements:

  • Upgrade to Tesseract 3.05 (2ca5d0a)
  • Update Lept4J to 1.3.0 (Leptonica 1.74.1)

http://tess4j.sf.net

Posted by Quan Nguyen 2017-02-17

Tess4J v3.2.2 Release

Tess4J, a Java JNA wrapper for Tesseract OCR API.

This release includes the following enhancements:

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

http://tess4j.sf.net

Posted by Quan Nguyen 2017-02-17

Lept4J v1.3.0 Release

Lept4J, a Java JNA wrapper for Leptonica Image Processing Library, provides support for Leptonica native types and data structures — such as Pix, Boxa, Pixa, etc. — used in Tesseract OCR API.

This release includes the following improvement:

  • Upgrade to Leptonica 1.74.1

http://tess4j.sourceforge.net/lept4j.html

Posted by Quan Nguyen 2017-02-17

Lept4J v1.2.4 Release

Lept4J, a Java JNA wrapper for Leptonica Image Processing Library, provides support for Leptonica native types and data structures — such as Pix, Boxa, Pixa, etc. — used in Tesseract OCR API.

This release includes the following improvements:

  • Fix Invalid memory access error caused by memory leaks in convertPixToImage
  • Add Otsu test case

http://tess4j.sourceforge.net/lept4j.html

Posted by Quan Nguyen 2016-09-24

Tess4J v3.2.1 Release

Tess4J, a Java JNA wrapper for Tesseract OCR API.

This release includes the following enhancements:

  • Properly release Box and Boxa resources
  • Update Lept4J to 1.2.3

http://tess4j.sf.net

Posted by Quan Nguyen 2016-05-29

Lept4J v1.2.3 Release

Lept4J, a Java JNA wrapper for Leptonica Image Processing Library, provides support for Leptonica native types and data structures — such as Pix, Boxa, Pixa, etc. — used in Tesseract OCR API.

This release includes more API methods related to box array operations

http://tess4j.sourceforge.net/lept4j.html

Posted by Quan Nguyen 2016-05-29

Tess4J v3.2 Release

Tess4J, a Java JNA wrapper for Tesseract OCR API.

This release includes the following enhancements:

  • Revert JNA to 4.1.0 due to "Invalid calling convention 63" errors invoking GhostScript via Ghost4J on Linux
  • Update Lept4J to 1.2.2 (Leptonica 1.73)
  • Recompile Tesseract 3.04.01 DLL against Leptonica 1.73
  • Update GhostScript Windows binary to 9.19

http://tess4j.sf.net

Posted by Quan Nguyen 2016-05-17

Lept4J v1.2.2 Release

Lept4J, a Java JNA wrapper for Leptonica Image Processing Library, provides support for Leptonica native types and data structures — such as Pix, Boxa, Pixa, etc. — used in Tesseract OCR API.

This release includes the following features:

  • Implement removeLines method
  • Add back a few methods accidentally commented out
  • Revert jna to 4.1.0
  • Include more API methods related to TIFF and PNG

http://tess4j.sourceforge.net/lept4j.html

Posted by Quan Nguyen 2016-05-17

Tess4J v3.1 Release

Tess4J, a Java JNA wrapper for Tesseract OCR API.

This release includes the following enhancements:

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

http://tess4j.sf.net

Posted by Quan Nguyen 2016-03-22

Lept4J v1.2 Release

Lept4J, a Java JNA wrapper for Leptonica Image Processing Library, provides support for Leptonica native types and data structures — such as Pix, Boxa, Pixa, etc. — used in Tesseract OCR API.

This release includes the following features:

  • Upgrade to Leptonica 1.73

http://tess4j.sourceforge.net/lept4j.html

Posted by Quan Nguyen 2016-03-19

Lept4J v1.1.2 Release

Lept4J, a Java JNA wrapper for Leptonica Image Processing Library, provides support for Leptonica native types and data structures — such as Pix, Boxa, Pixa, etc. — used in Tesseract OCR API.

This release includes the following features:

  • Update jna-4.2.2
  • Update jai-imageio-1.3.1

http://tess4j.sourceforge.net/lept4j.html

Posted by Quan Nguyen 2016-03-18

Tess4J v3.0 Release

Tess4J, a Java JNA wrapper for Tesseract OCR API.

This release includes the following enhancements:

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

http://tess4j.sf.net

Posted by Quan Nguyen 2015-12-25

Lept4J v1.1.1 Release

Lept4J, a Java JNA wrapper for Leptonica Image Processing Library, provides support for Leptonica native types and data structures — such as Pix, Boxa, Pixa, etc. — used in Tesseract OCR API.

This release includes the following features:

  • Update JNA 4.2.1
  • Additional test cases

http://tess4j.sf.net

Posted by Quan Nguyen 2015-11-15

Lept4J v1.0.1 Release

Lept4J, a Java JNA wrapper for Leptonica Image Processing Library, provides support for Leptonica native types and data structures — such as Pix, Boxa, Pixa, etc. — used in Tesseract OCR API.

This release includes the following features:

  • Backport improvements made in 1.1

http://tess4j.sf.net

Posted by Quan Nguyen 2015-11-15

Lept4J v1.1 Release

Lept4J, a Java JNA wrapper for Leptonica Image Processing Library, provides support for Leptonica native types and data structures — such as Pix, Boxa, Pixa, etc. — used in Tesseract OCR API.

This release includes the following features:

• Upgrade to Leptonica 1.72
• Additional use cases

http://tess4j.sf.net

Posted by Quan Nguyen 2015-08-22

Lept4J v1.0 Release

Lept4J, a Java JNA wrapper for Leptonica Image Processing Library, provides support for Leptonica native types and data structures — such as Pix, Boxa, Pixa, etc. — used in Tesseract OCR API.

This release includes the following features:

  • Autoload Leptonica 1.71 Windows 32- and 64-bit binaries embedded in JAR
  • Support for image conversion between Leptonica Pix vs Java BufferedImage

http://tess4j.sf.net

Posted by Quan Nguyen 2015-08-01

Tess4J v2.0 Release

Tess4J, a Java JNA wrapper for Tesseract OCR API.

This release includes the following enhancements:

  • 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

http://tess4j.sf.net

Posted by Quan Nguyen 2015-03-30

Tess4J v1.5 Release

Tess4J, a Java JNA wrapper for Tesseract OCR API.

This release, redesignated from 1.4.2 to indicate a minor API change, includes the following enhancements:

  • Add UNLV zone file support
  • Refactor

http://tess4j.sf.net

Posted by Quan Nguyen 2015-03-11

Tess4J v1.4.1 Release

Tess4J, a Java JNA wrapper for Tesseract OCR API.

This release includes the following enhancement:

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

http://tess4j.sf.net

Posted by Quan Nguyen 2015-01-25