How to Upgrade Tesseract OCR from V3 to V4 in Java
Part III of exploring Tess4J, full source code (Java SDK 1.8) and link to application included, with added features and trainable data
Since the end of last year (Nov 2023), much of my work has been centered around business process automation. More specifically a crux of the technical implementations entails developing intuitive graphical user interfaces (GUIs) to cater to the needs of business users.
In the midst of accustomising myself to build greater variations of GUIs in Java Swing, I figured that revisiting Optical Character Recognition (OCR) technologies could be complementary to my automation projects via reduction of overhead costs in manual data entry work.
Rationale For Project
Eventually, I made up my mind to not only resume my exploration of OCR engine— e.g. Tessseract capabilities but also to use this as a practice session to refine the GUI of a native OCR tool I had developed in my past 2 attempts at creating a portable text extraction application (refer to below for both Parts I & II). This also serves to accommodate additional features which shall be incorporated in the version of this article’s final deliverable.
