tika-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Dave Meikle (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TIKA-2357) Allow Tesseract PSM up to 13
Date Mon, 08 May 2017 12:55:04 GMT
Dave Meikle created TIKA-2357:
---------------------------------

             Summary: 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
            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}




--
This message was sent by Atlassian JIRA
(v6.3.15#6346)

Mime
View raw message