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

Solr result highlighting

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

The field that the HOCR is stored in must have the following attributes:   indexed="true" stored="true" termVectors="true" termPositions="true" termOffsets="true"

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Any objects that were previously ingested but require this functionality will need to be re-indexed.

XSLT Reference Implementation for GSearch

Tesseract

Tesseract provides many languages which can be downloaded from here.

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It is recommended to check the Tesseract page for more information on these options.

Note: If you running Linux distribution Tesseract software and language might be available in your repo, you can check it (e.g. on Ubuntu apt-cache search tesseract or on CentOS yum search tesseract for Tesseract and available languages,

for specific language: Ubuntu apt-cache search tesseract | grep Greek , CentOS yum search tesseract | grep Greek) when checked and found just install it on your server.