Page History

OCROverview

This module acts a Toolkit for generating OCR and word coordinate information. At the moment it relies exclusively on Tesseract to generate this information.

...

Dependencies

• Islandora
• Tuque
• Tesseract - Ready for Review (LJ) (3.02.02 or later)
• ImageMagic (Optional, Required for OCR preprocessing)
• Islandora Paged Content - Ready for Review (KS) (Optional)

Tesseract installation will differ depending on your operating system; please see the Tesseract README Wiki for detailed instructions.

...

Install as usual, see this for further information.

Configuration

Configuration options for the Islandora OCR module can be found at http://path.to.your.site/In Administration » Islandora » Islandora Utility Modules » OCR Tool (admin/islandora/tools/ocr), and include configure the following options:

• Tesseract: Islandora OCR requires the path to your Tesseract binary to function correctly. It also requires Tesseract to be version 3.02.02 or higher to function correctly.
• Languages available for OCR: Islandora can look for any additional OCR languages you have installed; these are chosen from a drop-down menu at time of ingest or derivative creation.

• Set the path for Tesseract
• Select languages available for OCR
• Enable/disable Solr Fast Vector Highlighting
• Set Solr field containing OCR text and the maximum number of results to return in a Solr query

Image AddedImage Removed

Solr result highlighting

To have Islandora viewers recognize Solr search results and highlight them, one will need to configure Solr to index the HOCR in a particular fashion.

...