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From "Dave Meikle (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (TIKA-2357) Allow Tesseract PSM up to 13
Date Mon, 08 May 2017 15:21:04 GMT

     [ https://issues.apache.org/jira/browse/TIKA-2357?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dave Meikle resolved TIKA-2357.
-------------------------------
    Resolution: Fixed
      Assignee: Dave Meikle

Merged in [0aaa121|https://github.com/apache/tika/commit/0aaa1215fd11632c349e9bdebac9829578276cb1].
Thanks Rafael!

> Allow Tesseract PSM up to 13
> ----------------------------
>
>                 Key: TIKA-2357
>                 URL: https://issues.apache.org/jira/browse/TIKA-2357
>             Project: Tika
>          Issue Type: Improvement
>          Components: ocr
>    Affects Versions: 1.14
>            Reporter: Dave Meikle
>            Assignee: Dave Meikle
>            Priority: Minor
>             Fix For: 1.15
>
>
> From https://github.com/apache/tika/pull/177 by Rafael Ferreira  
> Extend support for increased PSM options up to 13 for modern versions of Tesseract.
> {code}
> $ tesseract --version
> tesseract 3.05.00
>  leptonica-1.74.1
>   libjpeg 8d : libpng 1.6.29 : libtiff 4.0.7 : zlib 1.2.8
> $ tesseract --help-psm
> Page segmentation modes:
>   0    Orientation and script detection (OSD) only.
>   1    Automatic page segmentation with OSD.
>   2    Automatic page segmentation, but no OSD, or OCR.
>   3    Fully automatic page segmentation, but no OSD. (Default)
>   4    Assume a single column of text of variable sizes.
>   5    Assume a single uniform block of vertically aligned text.
>   6    Assume a single uniform block of text.
>   7    Treat the image as a single text line.
>   8    Treat the image as a single word.
>   9    Treat the image as a single word in a circle.
>  10    Treat the image as a single character.
>  11    Sparse text. Find as much text as possible in no particular order.
>  12    Sparse text with OSD.
>  13    Raw line. Treat the image as a single text line, bypassing hacks that are Tesseract-specific.
> {code}



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