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Based on patch provided by Uwe Klaus in PR 41617. 2009-05-08 Antonio Diaz <ant_diaz@teleline.es> * Version 0.18 released. * Added a layout analyser able to process arbitrary pages. * Added new option `--quiet'. * The `--layout' option no more accepts an argument. * The `--crop' option now accepts negative coordinates. * New recognized letter; 'a' with ring above. * Fixed recognition on files with a single big character. * Fixed bug that didn't write maxval when saving pgm or ppm. * Fixed some includes that prevented compilation with GCC 4.3.0. * "make install-info" should now work on Debian and OS X. * Makefile.in: Man page is now installed by default. * New file testsuite/check.sh. * Arg_parser updated to 1.2. * Verbosity control of messages has been modified. 2007-06-29 Antonio Diaz <ant_diaz@teleline.es> * Version 0.17 released. * License updated to GPL version 3 or later. * `--scale' no more suppresses ORF output. * Improved removal of thick frames. * Changed `Textline' to accept more than one big initial. * Class `Block' renamed to `Blob'. * `configure' and `Makefile.in' have been modified to be more GNU-standards compliant. 2006-10-20 Antonio Diaz <ant_diaz@teleline.es> * Version 0.16 released. * Added new option `--filter'. * Better algorithm for vertical space detection (blank lines). * Some fixes made to `configure' script. * Added two new debug levels. * Improvements in character recognition. 2006-04-03 Antonio Diaz <ant_diaz@teleline.es> * Version 0.15 released. * Added new argument parser that replaces `getopt_long'. * Fixed a bug that prevented compilation with GCC 4.1. 2006-02-15 Antonio Diaz <ant_diaz@teleline.es> * Version 0.14 released. * Ocrad is now able to read ppm files. * Added new class `Page_image' (256-level greymap). * Added automatic and adaptive binarization by Otsu's method. * Added new option `--crop'. * Added two new chapters `Image Format Conversion' and `Algorithm' to the texinfo file. * Target `check' added to Makefile. * Changed `ocrad.png' icon to color, one line.
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335 B
Text
7 lines
335 B
Text
GNU Ocrad is an OCR (Optical Character Recognition) program based on a
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feature extraction method. It reads images in pbm (bitmap), pgm
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(greyscale) or ppm (color) formats and produces text in byte (8-bit) or
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UTF-8 formats.
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Also includes a layout analyser able to separate the columns or blocks of
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text normally found on printed pages.
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