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