Commit Graph

105 Commits

Author SHA1 Message Date
Stefan Weil
2cbe723d03 Fix doxygen comments
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2019-02-20 21:11:38 +01:00
Shree Devi Kumar
f3362a4b5b Add renderer to create WordStr box files from images 2019-02-10 19:59:17 +00:00
zdenop
2ae65b2493
Merge pull request #2216 from Shreeshrii/lstmbox
Lstmbox
2019-02-10 13:53:41 +01:00
zdenop
e51f1885e6
Merge pull request #2229 from stweil/warn
Fix some compiler warnings
2019-02-10 08:20:23 +01:00
Stefan Weil
0c9f7db536 Fix compiler warning (-Wimplicit-fallthrough)
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2019-02-09 16:53:44 +01:00
Stefan Weil
2a355ea103 Fix compiler warnings (-Wimplicit-fallthrough)
gcc warnings:

    src/ccmain/docqual.cpp:734:26: warning: this statement may fall through [-Wimplicit-fallthrough=]
    src/ccmain/docqual.cpp:764:26: warning: this statement may fall through [-Wimplicit-fallthrough=]
    src/ccmain/docqual.cpp:782:26: warning: this statement may fall through [-Wimplicit-fallthrough=]
    [...]

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2019-02-09 16:32:20 +01:00
Stefan Weil
d42413dd17 OpenCL: Remove PERF_COUNT framework
It was rarely used, but added a lot of code and an unconditional
dependency on openclwrapper.h.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2019-02-09 10:58:15 +01:00
Shree Devi Kumar
9c89cd51cf Add a new renderer to create box files from images for LSTM training
(cherry picked from commit 921da6be2bdbda2ddd64514f9b6bec40a336246a)

fix typo

(cherry picked from commit 7bd1a0c80393fce2f34e2845cb26760bcf3791cd)

Add lstmboxrenderer to CMakeLists

(cherry picked from commit cfef3a889aef830725921b5c0218d5e9c633b03e)

fix formatting

(cherry picked from commit 7ba2b01ede7940ed609a073364948ef8c838cd10)
2019-02-05 14:03:29 +00:00
zdenop
f75b2c1948
Merge pull request #310 from nickjwhite/hocrcharboxes
Character boxes in hOCR output
2019-01-14 19:19:04 +01:00
Nick White
c43e4501e3 Merge remote-tracking branch 'origin/master' into hocrcharboxes 2019-01-13 12:41:42 +00:00
Stefan Weil
0fae848b58 OpenCL: Add comments to users of openclwrapper.h
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2019-01-09 12:11:00 +01:00
Stefan Weil
5dd606c631 Replace NULL by nullptr
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2019-01-01 22:45:49 +01:00
zdenop
1f5fb15af3 remove setting constant resolution from ImageThresholder::SetImage.
Credible resolution with be set afterward. Fixes #2080.
2018-12-14 19:23:22 +01:00
Stefan Weil
2c044df959 Fix wrong x_fsize in hOCR output (regression)
The regression was caused by the latest commit
c9e85ab78f.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-12-08 10:39:31 +01:00
Stefan Weil
c9e85ab78f Fix wrong font attributes in hOCR output
Instrumented code throws this runtime error during OCR:

    ../../src/api/baseapi.cpp:1616:5: runtime error: load of value 128,
      which is not a valid value for type 'bool'
    ../../src/api/baseapi.cpp:1627:5: runtime error: load of value 128,
      which is not a valid value for type 'bool'

If there is no font information (typical for Tesseract with a LSTM model),
the font attributes got random values resulting in wrong hOCR output.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-12-04 10:52:46 +01:00
Jake Sebright
d7cee03a94 Add support for ALTO output 2018-11-30 06:09:36 +01:00
Stefan Weil
6f8bd340d9 Remove chopper.h
It is no longer needed after some reordering of code in chopper.cpp.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-29 19:51:44 +01:00
Zdenko Podobný
3d508a65a7 set unlv_tilde_crunching to false; fixes #1449 #948 2018-10-23 09:26:32 +02:00
Stefan Weil
8f615d44f1 osdetect: Fix CID 1164539 (Division or modulo by float zero)
Avoid also a conversion from int16_t to double to float.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-22 22:14:15 +02:00
Stefan Weil
a71ad455be Remove unused macros
This fixes some compiler warnings:

    mainblk.cpp:28:9: warning: macro is not used [-Wunused-macros]
    mainblk.cpp:29:9: warning: macro is not used [-Wunused-macros]
    [...]

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-22 17:48:17 +02:00
Stefan Weil
bb181ec8d3 Rename API function from GetBestLSTMChoices to GetBestLSTMSymbolChoices
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-19 10:50:38 +02:00
Stefan Weil
df7d1e1f97 Rename API function for getting LSTM choices
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-19 10:50:38 +02:00
Stefan Weil
0bbd5c5d1c LineHypothesis: Add copy assignment operator
This fixes a warning from LGTM:

    No matching copy assignment operator in class LineHypothesis.
    It is good practice to match a copy constructor
    with a copy assignment operator.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-18 15:23:28 +02:00
Noah Metzger
c13371d6e0 Renamed GetGlyphConfidences() to GetChoices() and glyph_confidences to lstm_choice_mode
Renamed the global attribute glyph_confidences to lstm_choice_mode and the method GetGlyphConfidences() to GetChoices(). All Variables and comments contained in related methods were renamed as well.

Signed-off-by: Noah Metzger <noah.metzger@bib.uni-mannheim.de>
2018-10-17 16:43:39 +02:00
Tom Morris
f6fd9b3a00 Handle null raw_choice - fixes #235, fixes #246 2018-10-13 11:14:26 +02:00
Stefan Weil
de6a759744 unittest: Add paragraphs_test
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-12 16:23:10 +02:00
Stefan Weil
dcd0377bf0 Always use isascii() with isspace()
isspace() must only used with an unsigned char or EOF argument,
and even then its result can depend on the current locale settings.

While this is not a problem for C/C++ executables which use the default
"C" locale, it becomes a problem when the Tesseract API is called from
languages like Python or Java which don't use the "C" locale.

By calling isasci() before calling isspace() this uncertainty can be
avoided, because any locale will hopefully give identical results for
the basic ASCII character set.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-08 17:25:09 +02:00
Stefan Weil
7b5955920d pgedit: remove unused declaration of display_bln_lines
This fixes a warning from LGTM:

    This parameter of type ScrollView is 144 bytes
    - consider passing a pointer/reference instead.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-08 13:49:59 +02:00
zdenop
c4fb194ba2
Merge pull request #1958 from stweil/lgtm
Fix some warnings from static code analyzer LGTM
2018-10-06 20:27:21 +02:00
Stefan Weil
685abc91f3 pgedit: Change some variables from global to local ones
This fixes compiler warnings and a warning from LGTM:

Poor global variable name 'pe'. Prefer longer, descriptive names [...]

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-06 20:14:20 +02:00
zdenop
424dbd5dc7 improve description of min_characters_to_try variable 2018-10-06 20:10:54 +02:00
zdenop
660dbaa9d5 implement parameter min_characters_to_try for minimum characters to try to skip page entirely.
fixes #1729
2018-10-05 19:05:28 +02:00
zdenop
a0564fd4ec Allow user to specify dpi for input image 2018-09-28 20:28:52 +02:00
Zdenko Podobný
5d22fdfeed replace deprecated C++ headers (reported by clan-tidy) - partially supersedes PR #1605 2018-09-18 18:51:11 +02:00
David Thornley
31aeb534d9 Fix merge conflicts
Merge branch 'master' into jpg_quality_option

* master: (577 commits)
  fix issue #1889
  Add badges for download , licence and lgtm
  Replace macro MINGW by __MINGW32__
  EquationDetectBase: Define virtual destructor in .cpp file
  BlobGrid: Define virtual destructor in .cpp file
  GridBase: Define virtual destructor in .cpp file
  AlignedBlob: Define virtual destructor in .cpp file
  TransposedArray: Define virtual destructor in .cpp file
  IndexMapBiDi: Define virtual destructor in .cpp file
  Add missing include file (fixes linker error for Visual Studio)
  NthItemTest: Add definition for virtual destructor
  HeapTest: Add definition for virtual destructor
  IcuErrorCode: Define virtual destructor in .cpp file
  Validator: Define virtual destructor in .cpp file
  Dawg: Define virtual destructor in .cpp file
  CUtil: Define virtual destructor in .cpp file
  IndexMap: Define virtual destructor in .cpp file
  CCUtil: Define virtual destructor in .cpp file
  MATRIX: Define virtual destructor in .cpp file
  CCStruct: Define virtual destructor in .cpp file
  ...
2018-09-13 16:03:24 +02:00
Stefan Weil
8317371f24 LTRResultIterator 2018-09-04 07:39:34 +02:00
Stefan Weil
8e55146938 MutableIterator: Define virtual destructor in .cpp file
This fixes compiler warnings from clang:

src/ccmain/mutableiterator.h:44:7: warning:
 'MutableIterator' has no out-of-line virtual method definitions;
 its vtable will be emitted in every translation unit [-Wweak-vtables]

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-09-04 07:35:30 +02:00
Stefan Weil
d926655cfe LTRResultIterator: Define virtual destructor in .cpp file
This fixes compiler warnings from clang:

src/ccmain/ltrresultiterator.h:48:16: warning:
 'LTRResultIterator' has no out-of-line virtual method definitions;
 its vtable will be emitted in every translation unit [-Wweak-vtables]

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-09-04 07:35:30 +02:00
Stefan Weil
c635cdf5d5 Do not define or use macro __UNIX__
Either it was not needed, or it could be replaced by checking
for not _WIN32.

This fixes a compiler warning from clang:

src/ccutil/platform.h:41:9: warning:
 macro name is a reserved identifier [-Wreserved-id-macro]

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-09-04 07:34:11 +02:00
Stefan Weil
2a61f6dfcd Fix compiler warnings in c_blob_comparator and make it a local function
Compiler warnings from clang:

src/ccstruct/genblob.cpp:34:20: warning:
 use of old-style cast [-Wold-style-cast]
src/ccstruct/genblob.cpp:34:32: warning:
 cast from 'const void *' to 'C_BLOB **' drops const qualifier [-Wcast-qual]
src/ccstruct/genblob.cpp:35:20: warning:
 use of old-style cast [-Wold-style-cast]
src/ccstruct/genblob.cpp:35:32: warning:
 cast from 'const void *' to 'C_BLOB **' drops const qualifier [-Wcast-qual]

The function c_blob_comparator is only used in fixspace.cpp,
so move it to that file, make it a local function, and remove
genblob.cpp and genblob.h which are no longer needed.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-09-03 10:59:11 +02:00
Noah Metzger
f7663c69f6 Added detailed value description for glyph_confidences parameter
Signed-off-by: Noah Metzger <noah.metzger@bib.uni-mannheim.de>
2018-08-27 10:52:15 +02:00
Stefan Weil
b08966addf Fix assertion caused by access to default TBOX
Instead of adding an empty TBOX at the end of the box list,
that corner case is now handled by passing a nullptr (like
it was already done for the first box in the list).

This avoids the calls of BoxMissMetric with a TBOX
which raises an assertion there (b == 0).

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-08-22 21:40:26 +02:00
Stefan Weil
f3c7a17df3 Fix CID 1395108 (Dereference after null check)
Let's hope that word->best_choice is never NULL.
Overwise both the old and the new code would abort with SIGSEGV.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-08-22 13:55:37 +02:00
Stefan Weil
7e9dfefc5c Fix CID 1395114 ('Constant' variable guards dead code)
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-08-22 13:55:37 +02:00
Noah Metzger
663be426f6 Added the option for character accumulated glyph confidences.
The parameter glyph_confidences is changed from bool to int.
An execution with value 1 outputs the hOCR file enriched with glyph confidences
for every timestep like before. An execution with value 2 outputs the timesteps
accumulated over the recognized characters.

Signed-off-by: Noah Metzger <noah.metzger@bib.uni-mannheim.de>
2018-08-20 10:43:58 +02:00
Stefan Weil
641237495a Fix typo in comments and variable name
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-08-14 16:20:27 +02:00
Atsuyoshi Suzuki
4cda775d73 Revert Makefile.am to beta.2
thesserocr needs `osdetect.h'.
2018-08-06 23:21:20 +09:00
Stefan Weil
8af80b7ba6 Fix ImageThresholder::OtsuThresholdRectToPix for OpenCL
The ThresholdRectToPix OpenCL kernel only supports 4 channels.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-08-01 22:49:28 +02:00
Noah Metzger
83a4eb3b44 Fix issue reported by Coverity Scan
CID: 1391264 (Improper use of negative value)

Signed-off-by: Noah Metzger <noah.metzger@bib.uni-mannheim.de>
2018-07-31 09:43:30 +02:00
Noah Metzger
91c7504a35 Added a feature to enrich the hOCR output with glyph confidences
By using the parameter -c glyph_confidences=true the user is able to enrich
the hOCR output with additional information. Tesseract then lists additionally
the timesteps with all glyphs that were considered with their confidence
for every timestep of the LSTM.

The format of the hOCR output is slightly changed: There is now a linebreak
after every word for better readability by humans.

Signed-off-by: Noah Metzger <noah.metzger@bib.uni-mannheim.de>
2018-07-25 18:18:58 +02:00