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33 Commits

Author SHA1 Message Date
Raf Schietekat
c335508e84 Fewer g++ -Wsign-compare warnings 2017-05-11 23:14:52 +02:00
Raf Schietekat
3983d2f76a Reviewed uses of reinterpret_cast 2017-05-11 01:58:40 +02:00
Ray Smith
8e79297dce Final part of endian improvement. Adds big-endian support to lstm and fixes issue 518 2017-05-03 16:09:44 -07:00
Stefan Weil
46c887b77e genericvector: Fix minimum size 
Commit 907de5995f tried to improve
GenericVector, but missed a case where vectors with less than
kDefaultVectorSize were allocated. This resulted in additional
alloc / free operations.

Commit a28b2a033d (before memory optimization)
oem 0: total heap usage: 739,238 allocs, 739,237 frees, 161,699,214 bytes allocated
oem 1: total heap usage: 690,182 allocs, 690,175 frees, 144,470,400 bytes allocated
oem 2: total heap usage: 728,213 allocs, 728,206 frees, 182,885,824 bytes allocated

Commit fd3f8f9b2d without genericvector change
oem 0: total heap usage: 738,980 allocs, 738,979 frees, 161,697,150 bytes allocated
oem 1: total heap usage: 690,182 allocs, 690,175 frees, 144,470,400 bytes allocated
oem 2: total heap usage: 728,213 allocs, 728,206 frees, 182,885,824 bytes allocated
=> Improvements for oem 0, no change for oem 1 and oem 2.

Commit fd3f8f9b2d
oem 0: total heap usage: 772,648 allocs, 772,647 frees, 160,083,901 bytes allocated
oem 1: total heap usage: 748,591 allocs, 748,584 frees, 143,581,672 bytes allocated
oem 2: total heap usage: 764,796 allocs, 764,789 frees, 181,212,197 bytes allocated
=> Less bytes allocated, but more allocs / frees = bad for performance.

Commit fd3f8f9b2d with this patch
oem 0: total heap usage: 677,537 allocs, 677,536 frees, 160,444,634 bytes allocated
oem 1: total heap usage: 653,812 allocs, 653,805 frees, 143,423,008 bytes allocated
oem 2: total heap usage: 670,029 allocs, 670,022 frees, 181,517,760 bytes allocated
=> Improvements for all three cases.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2017-05-03 09:49:23 +02:00
zdenop
fd3f8f9b2d Merge pull request #352 from pnordhus/reduce_mallocs 
Avoid unnecessary memory allocations
 2017-04-30 17:39:31 +02:00
Ray Smith
1cc511188d Added extra Init that takes a memory buffer or a filereader function pointer to enable read of traineddata from memory or foreign file systems. Updated existing readers to use TFile API instead of FILE. This does not yet add big-endian capability to LSTM, but it is very easy from here. 2017-04-27 15:48:23 -07:00
Ray Smith
ce76d1c569 Fixes to training process to allow incremental training from a recognition model 2016-11-30 15:51:17 -08:00
Ray Smith
c1c1e426b3 Added new LSTM-based neural network line recognizer 2016-11-07 15:38:07 -08:00
Philipp Nordhus
907de5995f Do not allocate in GenericVector default ctor 2016-06-17 22:38:41 +02:00
Stefan Weil
4a92ff5862 Fix compiler warnings for copy constructors 
gcc reports these warnings with -Wextra:

ccstruct/pageres.h:330:3: warning:
 base class 'class ELIST_LINK' should be explicitly initialized
 in the copy constructor [-Wextra]
ccstruct/ratngs.cpp:115:1: warning:
 base class 'class ELIST_LINK' should be explicitly initialized
 in the copy constructor [-Wextra]
ccstruct/ratngs.h:291:3: warning:
 base class 'class ELIST_LINK' should be explicitly initialized
 in the copy constructor [-Wextra]
ccutil/genericvector.h:435:3: warning:
 base class 'class GenericVector<WERD_RES*>' should be explicitly initialized
 in the copy constructor [-Wextra]

Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2015-11-05 09:19:37 +01:00
Stefan Weil
38f3db8ca5 Fix more typos in comments (found by codespell) 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2015-11-04 21:58:42 +01:00
zdenop
b882590491 Merge pull request #65 from ws233/master 
Type mismatch on 64bit platforms
 2015-10-28 20:02:20 +01:00
Stefan Weil
539b7fbbab ccutil: Fix typos in comments and strings 
Most of them were found by codespell.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2015-09-14 22:09:18 +02:00
ws233
0146185c04 Type mismatch on a 64bit platforms has been fixed. 2015-07-26 11:37:15 +03:00
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
theraysmith@gmail.com
c86fe22a62 Started TFile conversion to remove fmemopen 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@1139 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2014-08-11 23:09:25 +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
d11dc049e3 Fixed a lot of compiler/clang warnings 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@1015 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2014-01-25 02:28:51 +00:00
zdenop@gmail.com
adfac4144b amend r995 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@996 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2014-01-18 09:04:35 +00:00
zdenop@gmail.com
ef3b1d936e fix mingw build issues 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@995 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2014-01-18 09:00:54 +00:00
zdenop
26f8f58042 fix android issues 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@990 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2014-01-15 22:47:37 +00:00
zdenop@gmail.com
244731fd51 revert dll-interface for class 'GenericVector<T>' 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@988 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2014-01-14 09:25:45 +00:00
zdenop@gmail.com
94d08567e1 fix vs2010 (and maybe vs2008) build 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@983 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2014-01-12 20:13:55 +00:00
theraysmith@gmail.com
fdb1669cda Fixed srand cast 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@892 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2013-10-11 04:57:54 +00:00
theraysmith@gmail.com
4c3475ad2e Fixed fmemopen portability problem 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@890 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2013-10-10 02:07:26 +00:00
zdenop@gmail.com
af319b4d90 fix for windows build - part 1 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@883 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2013-09-25 09:56:49 +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
theraysmith@gmail.com
e0d735b122 Remaining misc changes for 3.02 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@658 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2012-02-02 03:14:43 +00:00
max.markin@gmail.com
7c4461316a fixed comment 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@626 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2011-09-18 05:12:37 +00:00
theraysmith
ba9f73f04b 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@569 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2011-03-21 21:45:12 +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
theraysmith
8d654e7476 Fixed issue 243, ungraded helpers, genericvector 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@340 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2010-05-19 22:35:35 +00:00
theraysmith
d8b1456dd5 Changes to ccutil for 3.00 
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@305 d0cd1f9f-072b-0410-8dd7-cf729c803f20
 2009-07-11 02:50:24 +00:00