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https://issues.apache.org/jira/browse/TIKA-2174?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15651347#comment-15651347
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Matthew Caruana Galizia commented on TIKA-2174:
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That issue went away once I added 'jp2' and 'jpx' to the list of supported
types in TesseractOCRParser via a new proxy parser that declares support for
these types. It seems the embedded images are then handed off to Tesseract but
nothing is OCRed, although that seems to be a separate issue arising from
PDFBox.
> Too few formats in support declared by TesseractOCRParser
> ---------------------------------------------------------
>
> Key: TIKA-2174
> URL: https://issues.apache.org/jira/browse/TIKA-2174
> Project: Tika
> Issue Type: Bug
> Components: parser
> Affects Versions: 1.14
> Reporter: Matthew Caruana Galizia
>
> A complete install of Leptonica with Tesseract will add support for formats
> that are not declared by TesseractOCRParser. These include JP2, JPX and PPM.
> Tesseract produces OCR output fine for JPX images as of this version:
> {noformat}
> $ tesseract -v
> tesseract 3.04.01
> leptonica-1.73
> libjpeg 8d : libpng 1.6.26 : libtiff 4.0.6 : zlib 1.2.5}}
> {noformat}
> However, these types are not declared by getSupportTypes so no output is
> produced for PDFs which contained JPX images of scanned documents, for
> example.
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