Commit Graph

19 Commits

Author SHA1 Message Date
Stefan Weil
8f7be2e72c lstm: Replace NULL by nullptr (#1415)
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-03-25 17:19:27 +02:00
Stefan Weil
023e1b340e Use POSIX data types and macros (#878)
* api: Replace Tesseract data types by POSIX data types

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* ccmain: Replace Tesseract data types by POSIX data types

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* ccstruct: Replace Tesseract data types by POSIX data types

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* classify: Replace Tesseract data types by POSIX data types

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* cutil: Replace Tesseract data types by POSIX data types

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* dict: Replace Tesseract data types by POSIX data types

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* textord: Replace Tesseract data types by POSIX data types

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* training: Replace Tesseract data types by POSIX data types

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* wordrec: Replace Tesseract data types by POSIX data types

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* ccutil: Replace Tesseract data types by POSIX data types

Now all Tesseract data types which are no longer needed can be removed
from ccutil/host.h.

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* ccmain: Replace Tesseract's MIN_*INT, MAX_*INT* by POSIX *INT*_MIN, *INT*_MAX

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* ccstruct: Replace Tesseract's MIN_*INT, MAX_*INT* by POSIX *INT*_MIN, *INT*_MAX

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* classify: Replace Tesseract's MIN_*INT, MAX_*INT* by POSIX *INT*_MIN, *INT*_MAX

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* dict: Replace Tesseract's MIN_*INT, MAX_*INT* by POSIX *INT*_MIN, *INT*_MAX

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* lstm: Replace Tesseract's MIN_*INT, MAX_*INT* by POSIX *INT*_MIN, *INT*_MAX

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* textord: Replace Tesseract's MIN_*INT, MAX_*INT* by POSIX *INT*_MIN, *INT*_MAX

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* wordrec: Replace Tesseract's MIN_*INT, MAX_*INT* by POSIX *INT*_MIN, *INT*_MAX

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* ccutil: Replace Tesseract's MIN_*INT, MAX_*INT* by POSIX *INT*_MIN, *INT*_MAX

Remove the macros which are now unused from ccutil/host.h.
Remove also the obsolete history comments.

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* Fix build error caused by ambiguous ClipToRange

Error message vom Appveyor CI:

    C:\projects\tesseract\ccstruct\coutln.cpp(818): error C2672: 'ClipToRange': no matching overloaded function found [C:\projects\tesseract\build\libtesseract.vcxproj]
    C:\projects\tesseract\ccstruct\coutln.cpp(818): error C2782: 'T ClipToRange(const T &,const T &,const T &)': template parameter 'T' is ambiguous [C:\projects\tesseract\build\libtesseract.vcxproj]
      c:\projects\tesseract\ccutil\helpers.h(122): note: see declaration of 'ClipToRange'
      C:\projects\tesseract\ccstruct\coutln.cpp(818): note: could be 'char'
      C:\projects\tesseract\ccstruct\coutln.cpp(818): note: or       'int'

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* unittest: Replace Tesseract's MAX_INT8 by POSIX INT8_MAX

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* arch: Replace Tesseract's MAX_INT8 by POSIX INT8_MAX

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-03-13 21:36:30 +01:00
Stefan Weil
47a326b02d Use POSIX data types for external interfaces (#1358)
Replace the Tesseract specific data types in header files which are
part of Debian package libtesseract-dev by POSIX data types.

Update also matching cpp files.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-03-13 19:01:40 +01:00
Stefan Weil
b9b08c7e50 Replace log2(n) by local functions (#1353)
* Replace log2(n) by faster local function

This also adds support for environments without a log2 function (Android).

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* Provide local log2 function on platforms without log2 function

The existing implementation in wordrec/language_model.cpp is modified
to use a local inline function in the tesseract namespace and copied
to lstm/weightmatrix.cpp, too.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-03-02 06:54:43 +01:00
Ray Smith
fc6a390c6c Added intsimdmatrix as a generic integer matrixdotvector function with AVX2 and SSE specializations 2017-09-08 15:06:19 +01:00
Ray Smith
bf774382e8 Updated comments on RemapOutputs 2017-09-08 10:24:00 +01:00
Ray Smith
4e9665debf Added ADAM optimizer, unless git screwed it up, cos there is no diff 2017-08-02 14:03:50 -07:00
Justin Hotchkiss Palermo
f057938069 fix filenames in comments 2017-07-02 17:35:47 -04:00
Stefan Weil
3a67ff930e Optimize code by replacing init_to_size with resize_no_init
There is no need to initialize memory with a fixed value which is
overwritten in the next step.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2017-05-12 14:34:55 +02:00
Ray Smith
4fa463cd71 Corrected SetEnableTraining for recovery from a recognize-only model. 2017-05-05 16:39:43 -07:00
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
19616b07ba lstm: Move class SIMDDetect to new source file and improve code
Modify also the code to use a singleton. This simplifies the code as
no locking is needed. It also slightly improves the performance because
no check whether the architecture was tested is needed.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2016-12-27 13:25:08 +01:00
Stefan Weil
5cfe0c700c lstm: Add AVX / SSE support for Windows
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2016-12-27 11:14:15 +01:00
Stefan Weil
b2a0262c59 lstm: Update AVX / SSE support
* Fix compiler warning (see below)

* Use Linux code for Mingw-w64, too

* Simplify conditional code by using X86_BUILD instead of NONX86_BUILD

* Remove unneeded call of __get_cpuid_max (already called by __get_cpuid)

* Remove unneeded #undef statement

gcc report:

lstm/weightmatrix.cpp: In static member function
 'static double tesseract::WeightMatrix::DotProduct(const double*, const double*, int)':
weightmatrix.cpp:67:29: warning:
 'ecx' may be used uninitialized in this function [-Wmaybe-uninitialized]
       avx_available_ = (ecx & 0x10000000) != 0;
                             ^
lstm/weightmatrix.cpp:64:30: note: 'ecx' was declared here
       unsigned int eax, ebx, ecx, edx;
                              ^
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2016-12-27 10:21:50 +01:00
Stefan Weil
9a4a32137c Fix build for non x86
cpuid.h is only available for x86 builds. There are lots of non x86
architectures, so simply checking for PowerPC is not enough.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2016-12-26 19:17:03 +01:00
Ray Smith
ce76d1c569 Fixes to training process to allow incremental training from a recognition model 2016-11-30 15:51:17 -08:00
Egor Pugin
644469595c Fix windows build. 2016-11-24 17:32:23 +03:00
Stefan Weil
0c9235ebc2 Fix typos in new LSTM code
All of them were found and fixed by codespell.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2016-11-22 08:25:43 +01:00
Ray Smith
c1c1e426b3 Added new LSTM-based neural network line recognizer 2016-11-07 15:38:07 -08:00