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https://issues.apache.org/jira/browse/TIKA-2174?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15653430#comment-15653430
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Matthew Caruana Galizia commented on TIKA-2174:
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Thank you! I've also confirmed that Tesseract can handle
image/x-portable-pixmap (PPM) files, so perhaps we could add that too?
> 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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