Commit Graph

3099 Commits

Author SHA1 Message Date
Stefan Weil
f94b3fd9fc Remove code for _MSC_VER < 1900
Tesseract does not support Visual C++ older than Visual Studio 2015.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-09 14:05:21 +02:00
zdenop
c375f4fbf7 keep API compatibility with #1265 2018-10-09 11:22:15 +02:00
zdenop
7be5f74df8
Merge pull request #1966 from stweil/tests
Update submodules for testing
2018-10-08 20:57:28 +02:00
Stefan Weil
af02ac6474 Update googletest submodule to release v1.8.1
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-08 19:54:56 +02:00
Stefan Weil
eba1c81d52 Update test submodule
The latest version includes more files for testing.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-08 19:44:08 +02:00
zdenop
272ebf995f
Merge pull request #1965 from stweil/isspace
Always use isascii() with isspace()
2018-10-08 18:47:39 +02:00
zdenop
ab39adbcab
Merge pull request #1964 from stweil/fix
Avoid crash with --psm 0 and LSTM traineddata
2018-10-08 18:45:37 +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
32e92def49 Avoid crash with --psm 0 and LSTM traineddata
Orientation and script detect only worked with legacy models
and crashed with LSTM models.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-08 16:03:54 +02:00
zdenop
59ebd58fcc
Merge pull request #1963 from stweil/fix
Fix some warnings from static code analyzer LGTM
2018-10-08 15:09:59 +02:00
Stefan Weil
1eeca175f7 SVPaint: Remove empty block
This fixes a warning from LGTM:

    Empty block without comment

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-08 14:25:05 +02:00
Stefan Weil
9c857ab962 Classify: Don't hide debug parameter
Fix a warning from LGTM:

    Local variable 'debug' hides a parameter of the same name.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-08 14:22:31 +02:00
Stefan Weil
30b75cfc05 UNICHARMAP: Remove comparison which is always false
Warning from LGTM:

    Comparison is always false because index <= 0 and 1 <= length.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-08 14:15:17 +02:00
Stefan Weil
3ae765ecca svpaint: Change a variable from global to local
This fixes a warning from LGTM:

    Poor global variable name 'rgb'. Prefer longer, descriptive
    names for globals (eg. kMyGlobalConstant, not foo).

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-08 13:53:09 +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
Stefan Weil
ae93b65b1f Plumbing: Remove comparison which is always false
Warning from LGTM:

    Comparison is always false because index >= 0.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-08 13:47:16 +02:00
zdenop
944816ae3d Release candidate 2 2018-10-07 21:10:50 +02:00
zdenop
f794571195 use pdf L_FLATE_ENCODE only for png input; fixes #1961 2018-10-07 20:57:19 +02:00
Egor Pugin
5cf5c80ba1
Merge pull request #1960 from stweil/errhandling
Rework check for readable input file
2018-10-07 12:23:31 +03:00
Stefan Weil
67bf9062df Rework check for readable input file
This reverts commit 1a096441d0 and
implements an alternate check which allows input from stdin.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-06 22:33:02 +02:00
zdenop
140bfa43f0 Merge branch 'master' of https://github.com/tesseract-ocr/tesseract 2018-10-06 20:50:08 +02:00
zdenop
4044ba8260 fix "mktemp -d --tmpdir" on Mac OS; see #1453 2018-10-06 20:47:48 +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
Stefan Weil
18f7ab751e WERD_RES: Remove comparisons which are constant
This fixes warnings from LGTM:

Comparison is always false because id >= 0.
Comparison is always true because mirrored >= 1.
Comparison is always false because id >= 0.

INVALID_UNICHAR_ID is -1, so the warnings are correct.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-06 20:06:38 +02:00
Stefan Weil
238c872753 GENERIC_2D_ARRAY: Pass parameters by reference
This fixes warnings from LGTM:

This parameter of type FontClassInfo is 192 bytes
- consider passing a pointer/reference instead.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-06 19:48:13 +02:00
Stefan Weil
a7982185c9 genericvector: Pass parameters by reference
This fixes warnings like the following one from LGTM:

This parameter of type ParamsTrainingHypothesis is 112 bytes
- consider passing a pointer/reference instead.

Most parameters can also get the const attribute.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-06 19:47:49 +02:00
Stefan Weil
819c43d377 chop: Use more efficient float calculations for sqrt
This fixes warnings from LGTM:

Multiplication result may overflow 'float' before it is converted
to 'double'.

While the sqrt function always calculates with double, here the
overloaded std::sqrt can be used to handle the float arguments
more efficiently.

Replace also an old C++ type cast by a static_cast.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-06 18:59:23 +02:00
Stefan Weil
f264464ec6 rect: Use more efficient float calculations for ceil, floor
This fixes warnings from LGTM:

Multiplication result may overflow 'float' before it is converted
to 'double'.

While the floor function always calculates with double, here the
overloaded std::floor can be used to handle the float arguments
more efficiently.

Replace also old C++ type casts by static_cast.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-06 18:51:06 +02:00
zdenop
1e4768c1f5
Merge pull request #1957 from stweil/lgtm
Fix some warnings from static code analyzer LGTM
2018-10-06 18:42:12 +02:00
zdenop
e78c33cfc3
Merge pull request #1956 from stweil/valgrind
Fix constructor for class Dict (uninitialized member variables)
2018-10-06 18:32:39 +02:00
Stefan Weil
b26866bb3b intproto: Use more efficient float calculations for floor
This fixes warnings from LGTM:

Multiplication result may overflow 'float' before it is converted
to 'double'.

While the floor function always calculates with double, here the
overloaded std::floor can be used to handle the float arguments
more efficiently.

Replace also old C++ type casts by static_cast.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-06 18:29:38 +02:00
Stefan Weil
06a8de0b8b genericvector: Rewrite code to satisfy static code analyzer
Warning from LGTM:

Resource data_ is acquired by class GenericVector<FontSpacingInfo *>
but not released in the destructor.

LGTM complains about data_ not being deleted in the destructor.
The destructor calls the clear() method, but the delete there
was conditional which confuses the static code analyzer.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-06 18:24:13 +02:00
Stefan Weil
c2a8aa00b8 Fix constructor for class Dict (uninitialized member variables)
wildcard_unichar_id_, apostrophe_unichar_id_, question_unichar_id_ and
slash_unichar_id_ were not initialized in the constructor.

slash_unichar_id_ was used later in a conditional.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-06 17:52:52 +02:00
zdenop
9efedc15b2
Merge pull request #1954 from stweil/unicharset
Fix use of wrong UNICHARSET
2018-10-06 15:04:31 +02:00
zdenop
76cd80e1d7
Merge pull request #1953 from stweil/fix
lstmtraining: Remove dead code for purified model name
2018-10-06 15:02:39 +02:00
Stefan Weil
8dc9e9fd14 Fix use of wrong UNICHARSET
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-06 13:21:09 +02:00
Stefan Weil
0e71e5a754 lstmtraining: Remove dead code for purified model name
The purified model name `model_output` was unused,
so remove the comment and the unused code.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-06 09:34:17 +02:00
Egor Pugin
0e43ae5cf4
Merge pull request #1951 from stweil/checkdir
combine_tessdata, lstmtraining: Check for write failures
2018-10-05 23:38:01 +03:00
Stefan Weil
f4e982e041 combine_tessdata: Handle failures when extracting
Report an error and terminate if that fails.

Use also EXIT_SUCCESS and EXIT_FAILURE for the return values of main()
and add missing return at end of main().

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-05 21:39:18 +02:00
Stefan Weil
7434590b9a lstmtraining: Check write permission for output model
This is done by creating a temporary file.
Report an error and terminate if that fails.

Use also EXIT_SUCCESS and EXIT_FAILURE for the return values of main().

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-05 20:38:02 +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
2cb609d202
Merge pull request #1950 from stweil/manpage
Merge and enhance documentation on language and script models
2018-10-05 18:09:31 +02:00
Stefan Weil
3315931859 Merge and enhance documentation on language and script models
Add also links to the user forum and to the Wiki and update the
history text.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-05 16:55:21 +02:00
zdenop
551abb2114
Merge pull request #1949 from stweil/manpage
Document some more config options for tesseract
2018-10-05 16:38:06 +02:00
Stefan Weil
383dcf70b5 Document some more config options for tesseract
Clarify also the name(s) of the generated OCR result file(s):
Tesseract does not create a file named outbase.txt by default.

Fix also a sentence in the language section.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-05 16:03:51 +02:00
Egor Pugin
e03ee932d2
Merge pull request #1947 from stweil/doc
Update tesseract man page and add Makefile rule to build HTML manpages
2018-10-05 00:25:07 +03:00
Stefan Weil
b70a456788 Add Makefile rule to build HTML manpages
They can be built optionally by `make html` (only for automake builds).

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-04 22:36:03 +02:00
Stefan Weil
3e9b0acc5c Update tesseract man page
- move Tesseract 4 release note to other release notes
- format command line options in text
- add link to release notes (wiki)
- add link to contributors (GitHub)

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-04 22:10:22 +02:00