If you have gdal and Tesseract installed locally, they will be run against (eligible) parsed files in Tika. There shouldn't be any required configuration on the Nutch side.
Please see http://wiki.apache.org/tika/TikaOCR and http://wiki.apache.org/tika/TikaGDAL for how to install/run them. Hope that helps, Tyler On Wed, Feb 18, 2015 at 5:24 PM, Nikunj Gala <[email protected]> wrote: > The current source of Nutch uses Tika 1.7 as per repository in github. ( > https://github.com/apache/nutch/commit/3e2e688bd097727f457f1aa882c74a128f0a53da > ) > As per Apache Tika 1.7 webpage, Tika 1.7 includes GDAL and Tesseract OCR > (installation required). > But the Nutch source does not have GDAL and Tesseract OCR in parse-tika > plugin. > > How to include GDAL and Tesseract OCR sources in Tika plugin for Nutch? >

