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