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234 Commits

Author SHA1 Message Date
Stefan Weil
5ca4e0062d Create new pre-release 5.0.0-alpha-20201224 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2020-12-24 09:17:12 +01:00
Stefan Weil
d13e08bd85 Fix configure for flat training build without asciidoc 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2020-12-21 19:32:35 +01:00
Stefan Weil
57efa41d47
Add XML_CATALOG_FILES for MacOS with Homebrew (#3188) 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2020-12-21 16:39:32 +01:00
Stefan Weil
3efedabda3 automake: Flat build for src/training 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2020-12-19 15:25:21 +01:00
Stefan Weil
2db2223b39 Always use NEON by default for ARMv8 
Signed-off-by: Stefan Weil <stefan.weil@bib.uni-mannheim.de>
 2020-07-10 15:27:09 +02:00
Stefan Weil
bf39019d95 Remove obsolescent macro AC_HEADER_STDC 
See
https://www.gnu.org/software/autoconf/manual/autoconf-2.67/html_node/Particular-Headers.html.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2020-06-21 18:50:06 +02:00
Stefan Weil
27b254476f Remove obsolescent macro AC_HEADER_TIME 
See
https://www.gnu.org/software/autoconf/manual/autoconf-2.67/html_node/Particular-Headers.html.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2020-06-21 18:48:20 +02:00
Stefan Weil
0a63484644 Remove checks for unused types off_t, mbstate_t, _Bool 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2020-06-21 12:04:16 +02:00
Stefan Weil
958b90d785 Don't check for unused sys/wait.h 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2020-06-20 11:01:20 +02:00
Stefan Weil
a1aea84a27 Don't check for unused sys/shm.h and sys/ipc.h 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2020-06-20 10:59:54 +02:00
Stefan Weil
fd30c86674 Remove endianness test (WORDS_BIGENDIAN is unused) 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2020-06-20 10:47:00 +02:00
Stefan Weil
c1494fb710 Don't check for stdbool.h (only used in capi.h) 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2020-06-20 10:42:28 +02:00
Stefan Weil
d4cf77c92b Don't check for limits.h (now unused) 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2020-06-20 10:39:13 +02:00
Stefan Weil
a1d161326e Don't check for unused malloc.h 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2020-06-19 07:30:00 +02:00
Stefan Weil
ff0a7a38f7 Check compiler options depending on host cpu 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2020-05-27 06:52:36 +02:00
Robin Watts
f79e52a7cc NEON SIMD code. 
In tests on my pi3b+, a release build of my ghostscript integration
takes 2 minutes 27 seconds to render a PDF and OCR it with the
vanilla sources. With this NEON coded added the time drops to 37
seconds.

I have not tested the configure/Makefile changes as I'm not using
them.
 2020-05-20 18:54:42 +01:00
Stefan Weil
7f16162745 Fix previous commit 688f6490bb 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-12-31 09:50:07 +01:00
Stefan Weil
688f6490bb Fix broken build for pango_font_info_test 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-12-28 09:35:40 +01:00
amitdo
502ebe8ca9 Autotools: Pango, Cairo and ICU only required by training tools 2019-12-16 17:23:06 +02:00
Stefan Weil
39cc7b5808 automake: Improve build rules 
- Use less noinst_LTLIBRARIES (saves build time and disk space)
- Move DISABLED_LEGACY_ENGINE from compiler flags to config_auto.h

Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-12-03 12:22:47 +01:00
Stefan Weil
a1a139cbd2 Replace AVX_OPT, ..., AVX macros by HAVE_AVX, ... and clean related code 
- Replace AVX_OPT, AVX2_OPT, FMA_OPT, SSE41_OPT
- Replace AVX, AVX2, FMA, SSE4_1
- Write new HAVE_AVX, HAVE_AVX2, HAVE_FMA, HAVE_SSE4_1 into config_auto.h
- Put related conditionals in Makefile.am in one place

This makes the code clearer and fixes a log message in
IntSimdMatrixTest.AVX2.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-11-28 17:51:37 +01:00
Stefan Weil
074844ce46 Show libcurl version 
`tesseract --version` now also shows the version of libcurl and related
libraries if it was build with libcurl.

The preprocessor macro HAVE_LIBCURL is now defined in config_auto.h.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-11-28 16:34:52 +01:00
Stefan Weil
9ed526625a Remove compiler flag which had no effect 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-11-27 09:43:11 +01:00
Stefan Weil
cbd3a21cb2 automake: Flat build for src/viewer and src/wordrec 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-11-26 16:20:46 +01:00
Stefan Weil
0cd2bdbd2b automake: Flat build for src/textord 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-11-26 16:20:46 +01:00
Stefan Weil
558462358a automake: Flat build for src/opencl 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-11-26 16:20:46 +01:00
Stefan Weil
6eeb486b77 automake: Flat build for src/lstm 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-11-26 16:20:46 +01:00
Stefan Weil
7ebcc77e3b automake: Flat build for src/dict 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-11-26 16:20:46 +01:00
Stefan Weil
6181acf367 automake: Flat build for src/cutil 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-11-26 16:20:46 +01:00
Stefan Weil
159160518b automake: Flat build for src/classify 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-11-26 16:20:46 +01:00
Stefan Weil
9730c7e167 automake: Flat build for src/ccutil 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-11-26 16:20:46 +01:00
Stefan Weil
b1d449315e automake: Flat build for src/ccstruct 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-11-26 16:20:46 +01:00
Stefan Weil
9745a9d111 automake: Flat build for src/ccmain 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-11-26 16:20:46 +01:00
Stefan Weil
a166efaad6 automake: Flat build for src/arch 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-11-26 16:20:46 +01:00
Stefan Weil
cafb1bbfd7 automake: Flat build for src/api 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-11-26 16:20:46 +01:00
Stefan Weil
7ef20bb0e6 Use flat make for include/tesseract 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-10-29 12:01:51 +01:00
Stefan Weil
061eccd6ae Rename tesseract/tess_version.h -> tesseract/version.h 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-10-29 11:47:31 +01:00
amitdo
2f8884a64e Fix autotools build 2019-10-28 21:23:58 +02:00
Stefan Weil
94651e65ce Simplify configure.ac 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-10-01 12:32:08 +02:00
Stefan Weil
286d8275c7 Add support for image or image list by URL 
This allows OCR of images from the internet without downloading them first:

    tesseract http://IMAGE_URL OUTPUT ...

It uses libcurl.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-10-01 12:10:45 +02:00
Zdenko Podobný
fef64d795c fix #2101 2019-07-13 20:11:03 +02:00
Stefan Weil
2d5b166876 Add dot product implementation for Intel FMA (double = tessdata_best) 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-07-12 23:18:00 +02:00
Stefan Weil
676b18834c Fix check for icu 52.1 or newer 
It detected old versions but did not disable the training build.
This completes commit 66da4df11d.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-06-25 10:55:33 +02:00
Stefan Weil
674d6a90d8 Remove code for embedded build 
That code is unrelated to Tesseract and can be easily implemented
by external projects which require it.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-06-17 09:55:33 +02:00
Stefan Weil
ca885da5d3 Use C++17 compiler if possible 
This allows using new features of C++17 conditionally.
Simplify also the code which checks and sets the C++ version.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-05-31 10:40:56 +02:00
Stefan Weil
3c9691f286 configure: Fix cross builds (check for TensorFlow header) 
AC_CHECK_FILE does not work in cross builds. Such builds aborted.
Replace it by AC_CHECK_HEADERS. This fixes cross builds.

To enable TensorFlow in cross builds, more work is needed.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-05-26 17:46:44 +02:00
Raphael Graf
dacba02cd8 Do not link librt on OpenBSD 2019-05-25 18:08:55 +02:00
Stefan Weil
32dcfd06ba Replace Tensorflow by TensorFlow 
The name is written in camel case, see https://www.tensorflow.org/.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-05-24 17:14:28 +02:00
Stefan Weil
2441e4d8ac Implement check for Tensorflow header file 
This looks for one of the header files which are included by Tesseract.
It currently uses a hard coded path which works for Debian / Ubuntu.

Simplify also the rules for linking Tensorflow.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-05-24 16:52:14 +02:00
Stefan Weil
4382ab1a34 Support build with Tensorflow 
It expects include files in /usr/include/tensorflow.

* Add configure option --with-tensorflow (disabled by default)
* Fix data type tensorflow::int64
* Remove "third_party/" in include statements
* Add dummy implementations for Backward and DebugWeights in TFNetwork
* Add files generated with protoc from tfnetwork.proto
  (so the Tensorflow sources are not needed for the build)
* Update Makefiles

Signed-off-by: Stefan Weil <sw@weilnetz.de>
 2019-05-24 14:11:31 +02:00