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38 Commits

Author SHA1 Message Date
Ray Smith
1e3b671298 Fixes to make yesterday's changes compile 2015-05-13 09:58:59 -07:00
Ray Smith
84920b92b3 Font and classifier output structure cleanup. 
Font recognition was poor, due to forcing a 1st and 2nd choice at
a character level, when the total score for the correct font is often
correct at the word level, so allowed the propagation of a full set
of fonts and scores to the word recognizer, which can now decide word
level fonts using the scores instead of simple votes.

Change precipitated a cleanup of output data structures for classifier
results, eliminating ScoredClass and INT_RESULT_STRUCT, with a few
extra elements going in UnicharRating, and using that wherever possible.
That added the extra complexity of 1-rating due to a flip between 0 is
good and 0 is bad for the internal classifier scores before they are
converted to rating and certainty.
 2015-05-12 17:24:34 -07:00
Ray Smith
0e868ef377 Major change to improve layout analysis for heavily diacritic languages: 
Tha, Vie, Kan, Tel etc.
There is a new overlap detector that detects when diacritics
cause a big increase in textline overlap. In such cases, diacritics from
overlap regions are kept separate from layout analysis completely, allowing
textline formation to happen without them. The diacritics are then assigned
to 0, 1 or 2 close words at the end of layout analysis, using and modifying
an old noise detection data path.
The stored diacritics are used or not during recognition according to the
character classifier's liking for them.
 2015-05-12 16:47:02 -07:00
Ray Smith
b6d0184806 Fixed problems with shifted baselines so recognition can recover from layout analysis errors. 2015-05-12 15:53:45 -07:00
Ray Smith
4a3caefd92 Add ability to build under android (without cube or scrollview). 2015-05-12 15:41:15 -07:00
Ray Smith
a441993100 Fixed issue 1301 2014-10-07 09:27:25 -07:00
Ray Smith
2f197cd653 Fixed issues 899/1220/1246 (mixed eng+ara) 2014-09-17 18:27:49 -07:00
Ray Smith
09b439b05a Fixed issue 1241, but disabled due to making accuracy worse 2014-08-13 13:33:10 -07:00
theraysmith@gmail.com
dbf6197471 Major refactor of control.cpp to enable line recognition 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@1147 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2014-08-11 23:23:06 +00:00
theraysmith@gmail.com
cda8e748b1 Fixed some formatting issues 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@1083 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2014-04-25 01:25:42 +00:00
theraysmith@gmail.com
5d61f46332 Fixed issue 1112 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@1079 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2014-04-24 20:13:38 +00:00
theraysmith@gmail.com
7f5e5264d3 Fixed issues 1093-1097 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@1048 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2014-02-04 23:36:24 +00:00
theraysmith@gmail.com
7ec4fd7a56 Refactorerd control functions to enable parallel blob classification 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@904 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2013-11-08 20:30:56 +00:00
theraysmith@gmail.com
4d514d5a60 Major refactor of beam search, elimination of dead code, misc bug fixes, updates to Makefile.am, Changelog etc. 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@878 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2013-09-23 15:26:50 +00:00
zdenop@gmail.com
10c1169d98 remove unused code (Windows related) 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@860 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2013-07-08 18:21:10 +00:00
zdenop@gmail.com
5958f01f5f fix doxygen warnings 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@715 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2012-03-30 15:42:06 +00:00
david.eger@gmail.com
018f192fc2 Abolish populate_unichars(), fixing seg fault reported in Debian: 
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=658634



git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@675 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2012-02-15 01:37:00 +00:00
david.eger@gmail.com
78a8356a76 Put one last bigram correction debug statement behind a debug flag. 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@669 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2012-02-09 20:08:17 +00:00
david.eger@gmail.com
56bc885721 Fix some debug messaging about bigram correction -- the two lists of 
alternates are not independent.



git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@664 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2012-02-03 19:43:25 +00:00
theraysmith@gmail.com
3a998fe7ac Added Right-to-left/Bidi capability in the output iterators for Hebrew/Arabic, Added paragraph detection in layout analysis/post OCR, Fixed inconsistent xheight during training and over-chopping, Added simultaneous multi-language capability, Refactored top-level word recognition module, Fixed problems with internally scaled images 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@651 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2012-02-02 02:59:49 +00:00
theraysmith
3e8c0bc228 Various fixes, including memory leak in fixspace, font labels on output, removed some annoying debug output, fixes to initialization of parameters, general cleanup, and added Hindi 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@567 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2011-03-21 21:44:05 +00:00
theraysmith
7121e51422 Deleted lots of dead code, including PBLOB 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@556 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2011-03-18 21:52:08 +00:00
theraysmith
137f4806b6 Added sub/superscript, small/dropcap detection 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@547 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2010-12-09 01:32:20 +00:00
theraysmith
c8465252e4 Rewrite of DENORM 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@538 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2010-11-30 01:05:48 +00:00
zdenop@gmail.com
4523ce9f7d 3.01 code from http://github.com/jimregan/tesseract-ocr with addaptions related to Linux and Windows (VC2008) compile process 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@526 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2010-11-23 18:34:14 +00:00
joregan
f2506871f9 move include of config_auto.h to not conflict with local types. Not finished 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@490 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2010-09-30 15:53:40 +00:00
joregan
b6e3cbea5a more doxygen 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@445 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2010-07-27 16:39:45 +00:00
joregan
4acaabdb62 make some static 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@440 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2010-07-26 18:21:10 +00:00
joregan
522a8ccfc4 fix issue 332 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@429 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2010-07-20 10:31:49 +00:00
joregan
5c8ad7ee72 add config_auto.h anywhere #ifndef GRAPHICS_DISABLED is used 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@384 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2010-05-28 12:03:45 +00:00
theraysmith
109d1c8f21 Some changes in ccmain for 3.00 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@286 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2009-07-11 02:03:51 +00:00
theraysmith
7870d67c21 Fixed name collision with jpeg library 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@157 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2008-04-22 00:32:14 +00:00
theraysmith
10265fb9cc Updated graphics output for new java-based display 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@136 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2008-02-01 00:33:18 +00:00
theraysmith
6ae6c0a042 Made some preliminary changes for improving xheights 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@107 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2007-08-30 18:20:10 +00:00
theraysmith
1943de9aa9 Fixed the extern C mismatches properly. 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@82 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2007-07-18 01:00:54 +00:00
theraysmith
4dffd5442c Added windows dll from Jetsoft 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@33 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2007-05-16 01:18:28 +00:00
mezhirov
a9045a20e2 Fixed c/c++ linking (patch by Aaron Digulla) 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@30 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2007-04-13 17:43:37 +00:00
tmbdev
425d593ebe top-skimming import from sf.net 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk/trunk@2 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2007-03-07 20:03:40 +00:00