Commit Graph

11 Commits

Author SHA1 Message Date
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