Tess4J / News: Recent posts

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Tess4J, a Java JNA wrapper for Tesseract OCR API.

This release includes the following enhancements:

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

http://tess4j.sf.net

Tess4J, a Java JNA wrapper for Tesseract OCR API.

This release includes the following enhancements:

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

http://tess4j.sf.net

Tess4J, a Java JNA wrapper for Tesseract OCR API.

This release includes:

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

http://tess4j.sf.net

Tess4J, a Java JNA wrapper for Tesseract OCR API.

This release includes:

• Update Tesseract 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

http://tess4j.sf.net

Tess4J, a Java JNA wrapper for Tesseract OCR API.

This release includes:

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

http://tess4j.sf.net

Tess4J, a Java JNA wrapper for Tesseract OCR DLL 2.04.

This release includes:

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

http://tess4j.sf.net

Tess4J, a Java JNA wrapper for Tesseract OCR DLL 2.04.

This release includes:

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

http://tess4j.sf.net

Tess4J, a Java JNA wrapper for Tesseract OCR DLL 2.04.

This release includes:

- Support for BufferedImage
- Clean up codes. Remove unsupported API and files
- Document the API

http://tess4j.sf.net

Tess4J, a Java wrapper for Tesseract OCR API.

This release adds support for:

- more image formats (PNG, BMP, GIF, PDF, etc.)
- compressed, grayscale and colored images