Let me first describe my environment
Fedora Linux x64
(Installed both Oracle and OpenJDK, switchable when I need)
Compiled Tesseract 3.02 from sources to x64.
1) On OpenJDK when I unpack and run "ant test", everything goes fine, looks like tests are valid because they produce some OCR'ed output.
2) on OracleJDK I'm doing same, but it fails with some SIGSEGV after compiling, and when running tests.
Error: Illegal min or max specification!
signal_termination_handler:Error:Signal_termination_handler called:Code 5002
JRE version: 7.0_21-b11
Java VM: Java HotSpot(TM) 64-Bit Server VM (23.21-b01 mixed mode linux-amd64 compressed oops)
C [libtesseract.so+0x244f90] ERRCODE::error(char const, TessErrorLogCode, char const, ...) const+0x180
Oracle JDK version:
java version "1.7.0_21"
Java(TM) SE Runtime Environment (build 1.7.0_21-b11)
Java HotSpot(TM) 64-Bit Server VM (build 23.21-b01, mixed mode)
Open JDK version:
java version "1.7.0_25"
OpenJDK Runtime Environment (fedora-220.127.116.11.fc17-x86_64)
OpenJDK 64-Bit Server VM (build 23.7-b01, mixed mode)
Lib tesseract version:
/opt/tesseract/lib/libtesseract.so.3.0.2: ELF 64-bit LSB shared object, x86-64, version 1 (GNU/Linux), dynamically linked, BuildID[sha1]=0x809337d0cdd7506ba9773ca691ae4fe260d996e5, not stripped
What can be wrong with JDK ?
I developed Tess4J with Ubuntu 14.04 32-bit and Oracle JDK 1.7.0_55 32-bit and built latest Tesseract 3.03 source from svn, and it worked fine.
Hope others who have system configuration similar to yours will share their experience.
It is bug in tesseract - https://code.google.com/p/tesseract-ocr/issues/detail?id=910
I had to add setlocale (LC_ALL, "C"); in TessBaseAPIInit2 method in api/capi.cpp
TESS_API int TESS_CALL TessBaseAPIInit2(TessBaseAPI handle, const char datapath, const char* language, TessOcrEngineMode oem)
setlocale (LC_ALL, "C");
return handle->Init(datapath, language, oem);
and recompile tess
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