Commit Graph

15 Commits

Author SHA1 Message Date
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
14ee911978 lstm: Use MS C intrinsic function for faster calculation of log2 (#1369)
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-03-10 20:52:39 +01:00
Hintz
cf66bc84c8 Fix syntax error. (#1355) 2018-03-03 14:33:39 +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
Raf Schietekat
3983d2f76a Reviewed uses of reinterpret_cast 2017-05-11 01:58:40 +02:00
Ray Smith
b86b4fa06b Better fix for re-enabling training 2017-05-08 14:26:09 -07:00
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
6140be6a55 openmp: Fix build with clang++ and compilers without OpenMP support
Builds without support for OpenMP failed with the old code. Fix this:

* Add OPENMP_CXXFLAGS for ccmain.
* Replace unconditional -fopenmp by OPENMP_CXXFLAGS for lstm.
* Always use _OPENMP for conditional compilation.
* Remove OPENMP as there is already _OPENMP.
* Include omp.h conditionally.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2016-12-04 18:44:03 +01:00
Stefan Weil
06b28a111d lstm: Initialize member variable input_width_
Coverity report:

CID 1366452 (#1 of 1): Uninitialized scalar field (UNINIT_CTOR)
18. uninit_member: Non-static class member input_width_ is not initialized
 in this constructor nor in any functions that it calls.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2016-12-01 14:42:54 +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
Ray Smith
c1c1e426b3 Added new LSTM-based neural network line recognizer 2016-11-07 15:38:07 -08:00