I have the latest version of tess4j from maven repository.
Also the CPP code that I'm running is the default
Tesseractmain.cpp(attached)
Here is the command I'm using to build it.
sudo g++ -m32 tesseractmain.cpp -I../../Tesseract/Tesseract/ccutil
-I../../leptonica-1.71/src -I../../Tesseract/Tesseract/ccstruct
-I../../Tesseract/Tesseract/ccmain -I../../Tesseract/Tesseract/viewer
-I/usr/local/cuda-6.5/include -L/usr/local/cuda-6.5/lib -lcudart
Also, the following in the makefile that was generated when making the
tesseract application.
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On Sunday, March 29, 2015 at 7:29:46 PM UTC+5:30, Quan Nguyen wrote:
>
> The C-API, which Tess4J wraps around, was re-introduced in 3.02. You would
> need to upgrade to that.
>
> On Sunday, March 29, 2015 at 12:23:43 AM UTC-5, dhruv shah wrote:
>>
>> The Tesseract version is 3.01 and yes I installed it afterwards. When I'm
>> trying to use the tesseract from command line like so,
>> tesseract eurotext.tiff out
>> then the out file has the correct output.
>> But when i try to consume the libraries, then the code fails.
>> I tried to use C++ code also even there it fails.
>>
>> On Sunday, March 29, 2015 at 5:11:54 AM UTC+5:30, Quan Nguyen wrote:
>>>
>>> What version of Tesseract did you build? Did you install it afterwards,
>>> together with tessdata?
>>>
>>> On Saturday, March 28, 2015 at 12:31:26 PM UTC-5, dhruv shah wrote:
>>>>
>>>> Hello,
>>>>
>>>> I'm using a java wrapper to access tesseract libraries.
>>>> Here is my code (default available on tess4j site):
>>>>
>>>> import net.sourceforge.tess4j.*;
>>>>
>>>> public class TesseractExample1 {
>>>>
>>>> public static void main(String[] args) {
>>>> File imageFile = new File("eurotext.tiff");
>>>> Tesseract instance = null;
>>>> instance = Tesseract.getInstance(); // JNA Interface Mapping
>>>>
>>>> try {
>>>> String result = instance.doOCR(imageFile);
>>>> System.out.println(result);
>>>> } catch (TesseractException e) {
>>>> //System.err.println(e.getMessage());
>>>> e.printStackTrace();
>>>> }
>>>> }
>>>> }
>>>>
>>>> I'm using 32 bit *jdk 1.8.0_40*
>>>> I have a *64 bit linux 14.04*
>>>> I'm getting the following error.
>>>>
>>>> Exception in thread "main" java.lang.UnsatisfiedLinkError: Error
>>>> looking up function 'TessBaseAPICreate': /usr/local/lib/libtesseract.so:
>>>> undefined symbol: TessBaseAPICreate
>>>> at com.sun.jna.Function.<init>(Function.java:208)
>>>> at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:536)
>>>> at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:513)
>>>> at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:499)
>>>> at com.sun.jna.Library$Handler.invoke(Library.java:199)
>>>> at com.sun.proxy.$Proxy0.TessBaseAPICreate(Unknown Source)
>>>> at net.sourceforge.tess4j.Tesseract.init(Tesseract.java:344)
>>>> at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:256)
>>>> at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:188)
>>>> at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:172)
>>>> at
>>>> com.meditab.central.TesseractExample1.main(TesseractExample1.java:22)
>>>>
>>>>
>>>>
>>>>
>>>> command used to make the Tesseract+CUDA
>>>> sudo ./configure --build=i386-linux-gnu LDFLAGS="-m32
>>>> -L/usr/local/cuda-6.5/lib -L/usr/lib/i386-linux-gnu" LIBS="-lcudart
>>>> -lcuda"
>>>> CPPFLAGS="-m32 -I/usr/local/cuda-6.5/include" CXXFLAGS=-m32 CFLAGS=-m32
>>>>
>>>> command used to make LEPTONICA
>>>> sudo ./configure CPPFLAGS=-m32 LDFLAGS="-m32
>>>> -L/usr/lib/i386-linux-gnu" CXXFLAGS=-m32 CFLAGS=-m32
>>>>
>>>>
>>>> Can someone please give me an idea as to what might be going wrong?
>>>> I'll provide all the other necessary details.
>>>>
>>>>
>>>>
>>>>
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/**********************************************************************
* File: tessedit.cpp (Formerly tessedit.c)
* Description: Main program for merge of tess and editor.
* Author: Ray Smith
* Created: Tue Jan 07 15:21:46 GMT 1992
*
* (C) Copyright 1992, Hewlett-Packard Ltd.
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
** http://www.apache.org/licenses/LICENSE-2.0
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*
**********************************************************************/
#include "mfcpch.h"
// #define USE_VLD //Uncomment for Visual Leak Detector.
#if (defined _MSC_VER && defined USE_VLD)
#include <vld.h>
#endif
// Include automatically generated configuration file if running autoconf
#ifdef HAVE_CONFIG_H
#include "config_auto.h"
#endif
#ifdef USING_GETTEXT
#include <libintl.h>
#include <locale.h>
#define _(x) gettext(x)
#else
#define _(x) (x)
#endif
#include "allheaders.h"
#include "baseapi.h"
#include "strngs.h"
#include "tprintf.h"
#include "tesseractmain.h"
#include "cuda.h"
#include "cuda_runtime.h"
/**********************************************************************
* main()
*
**********************************************************************/
int main(int argc, char **argv) {
#ifdef USE_NLS
setlocale (LC_ALL, "");
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
#endif
if ((argc == 2 && strcmp(argv[1], "-v") == 0) ||
(argc == 2 && strcmp(argv[1], "--version") == 0)) {
fprintf(stderr, "tesseract %s\n", tesseract::TessBaseAPI::Version());
exit(0);
}
// Make the order of args a bit more forgiving than it used to be.
//system("CLS"); /// Clear Screen Works...
const char* lang = "eng";
const char* image = NULL;
const char* output = NULL;
tesseract::PageSegMode pagesegmode = tesseract::PSM_AUTO;
int arg = 1;
while (arg < argc && (output == NULL || argv[arg][0] == '-')) {
if (strcmp(argv[arg], "-l") == 0 && arg + 1 < argc) {
lang = argv[arg + 1];
++arg;
} else if (strcmp(argv[arg], "-psm") == 0 && arg + 1 < argc) {
pagesegmode = static_cast<tesseract::PageSegMode>(atoi(argv[arg + 1]));
++arg;
} else if (image == NULL) {
image = argv[arg];
} else if (output == NULL) {
output = argv[arg];
}
++arg;
}
if (output == NULL) {
fprintf(stderr, _("Usage:%s imagename outputbase [-l lang] "
"[-psm pagesegmode] [configfile...]\n"), argv[0]);
fprintf(stderr,
_("pagesegmode values are:\n"
"0 = Orientation and script detection (OSD) only.\n"
"1 = Automatic page segmentation with OSD.\n"
"2 = Automatic page segmentation, but no OSD, or OCR\n"
"3 = Fully automatic page segmentation, but no OSD. (Default)\n"
"4 = Assume a single column of text of variable sizes.\n"
"5 = Assume a single uniform block of vertically aligned text.\n"
"6 = Assume a single uniform block of text.\n"
"7 = Treat the image as a single text line.\n"
"8 = Treat the image as a single word.\n"
"9 = Treat the image as a single word in a circle.\n"
"10 = Treat the image as a single character.\n"));
fprintf(stderr, _("-l lang and/or -psm pagesegmode must occur before any"
"configfile.\n"));
exit(1);
}
cudaDeviceProp prop;
int DeviceCount;
cudaGetDeviceCount (&DeviceCount);
int driverVersion = 0, runtimeVersion = 0;
for (int i_Count = 0; i_Count < DeviceCount; i_Count++)
{
cudaDeviceReset();
cudaGetDeviceProperties (&prop, i_Count);
// cudaGetDeviceProperties(&deviceProp, dev);
cudaDriverGetVersion(&driverVersion);
cudaRuntimeGetVersion(&runtimeVersion);
// //
// printf("\n\n -- CUDA Driver Found Installed on this Workstation -- \n");
// printf(" CUDA Driver Version Installed: %d.%d\n",(driverVersion)/1000, (driverVersion%100)/10);
// printf(" CUDA Runtime Version Installed: %d.%d\n",runtimeVersion/1000, (runtimeVersion%100)/10);
// printf("\n -- General Information of the Device -- \n");
// printf(" Name: %s\n", prop.name);
// printf(" Compute Capability: %d.%d\n", prop.major, prop.minor);
// if (prop.integrated)
// printf(" CUDA device %d is Integrated GPU\n", i_Count);
// else
// printf(" CUDA device %d is Discrete GPU\n", i_Count);
// printf(" Clock Rate: %1.2f GHz\n", (float)(prop.clockRate)/(1000000));
// //printf(" Device Copy Overlap: ");
// if (prop.deviceOverlap)
// printf(" Device Copy Overlap: Enabled\n");
// else
// printf(" Device Copy Overlap: Disabled\n");
// //printf("Kernel
// if (prop.kernelExecTimeoutEnabled)
// printf (" Kernel Execution Timeout: Enabled\n");
// else
// printf (" Kernel Execution Timeout: Disabled\n");
// if (prop.concurrentKernels)
// printf(" Device %d supports Multiple Kernel Executions \n", i_Count);
// else
// printf(" Device %d does not support Multiple Kernel Executions \n", i_Count);
// printf("\n -- Memory Information for the Device %d --\n",i_Count);
// printf(" Total Global Memory: %ld MB\n", (prop.totalGlobalMem)/(1024*1024));
// printf(" Total Constant Memory: %ld KB\n", (prop.totalConstMem)/1024);
// printf(" Max Memory Pitch: %ld MB\n", (prop.memPitch)/(1024*1024));
// printf(" Memory Bus Width: %d-Bit\n", prop.memoryBusWidth);
// printf(" Texture Alingment: %ld\n", prop.textureAlignment);
// printf("\n -- Multiprocessor Information for the Device %d --\n", i_Count);
// printf(" Multiprocessor Count: %d\n", prop.multiProcessorCount);
// printf(" Shared Memory Per Block: %ld KB\n", (prop.sharedMemPerBlock)/1024);
// printf(" Registers Per Block: %d K\n", (prop.regsPerBlock)/1024);
// printf(" Threads in Warp: %d\n", prop.warpSize);
// printf(" Max Threads Per Block: %d\n", prop.maxThreadsPerBlock);
// printf(" Max Threads Dimensions: (%d, %d, %d)\n", prop.maxThreadsDim[0], prop.maxThreadsDim[1], prop.maxThreadsDim[2]);
// printf(" Max Grid Dimensions: (%d, %d, %d)\n", prop.maxGridSize[0], prop.maxGridSize[1], prop.maxGridSize[2]);
// printf("\n");
//
}
/*
//printf(" CUDA Device with Compute Capability = %d.%d\n", prop.major, prop.minor);
//int dev;
// cudaGetDevice( &dev );
// printf( "ID of current CUDA device: %d\n", dev );
// memset( &prop, 0, sizeof( cudaDeviceProp ) );
// prop.major = 1;
// prop.minor = 3;
//cudaChooseDevice( &dev, &prop );
// printf( "ID of CUDA device closest to revision 1.3: %d\n", dev );
////cudaGetDeviceProperties( &prop, i )
// cudaSetDevice( dev );
*/
tesseract::TessBaseAPI api;
api.SetOutputName(output);
api.Init(argv[0], lang, tesseract::OEM_DEFAULT,
&(argv[arg]), argc - arg, NULL, NULL, false);
// We have 2 possible sources of pagesegmode: a config file and
// the command line. For backwards compatability reasons, the
// default in tesseract is tesseract::PSM_SINGLE_BLOCK, but the
// default for this program is tesseract::PSM_AUTO. We will let
// the config file take priority, so the command-line default
// can take priority over the tesseract default, so we use the
// value from the command line only if the retrieved mode
// is still tesseract::PSM_SINGLE_BLOCK, indicating no change
// in any config file. Therefore the only way to force
// tesseract::PSM_SINGLE_BLOCK is from the command line.
// It would be simpler if we could set the value before Init,
// but that doesn't work.
if (api.GetPageSegMode() == tesseract::PSM_SINGLE_BLOCK)
api.SetPageSegMode(pagesegmode);
tprintf(_("Tesseract Open Source OCR Engine v%s with Leptonica\n + CUDA Runtime Version: %d.%d\n + CUDA Driver Version: %d.%d\n using CUDA Device %s with Compute Capability = %d.%d\n\n\n"),
tesseract::TessBaseAPI::Version(),runtimeVersion/1000, (runtimeVersion%100)/10,(driverVersion)/1000, (driverVersion%100)/10, prop.name, prop.major, prop.minor);
//-------------------
//cudaEvent_t start_1, stop_1;
//float elapsedTime_1;
//cudaEventCreate (&start_1);
//cudaEventCreate (&stop_1);
//cudaEventRecord (start_1,0);
//---------------------
FILE* fin = fopen(image, "rb");
if (fin == NULL) {
printf("Cannot open input file: %s\n", image);
exit(2);
}
fclose(fin);
PIX *pixs;
if ((pixs = pixRead(image)) == NULL) {
printf("Unsupported image type.\n");
exit(3);
}
pixDestroy(&pixs);
STRING text_out;
if (!api.ProcessPages(image, NULL, 0, &text_out)) {
tprintf(_("Error during processing.\n"));
}
bool output_hocr = false;
api.GetBoolVariable("tessedit_create_hocr", &output_hocr);
bool output_box = false;
api.GetBoolVariable("tessedit_create_boxfile", &output_box);
STRING outfile = output;
outfile += output_hocr ? ".html" : output_box ? ".box" : ".txt";
FILE* fout = fopen(outfile.string(), "wb");
if (fout == NULL) {
tprintf(_("Cannot create output file %s\n"), outfile.string());
exit(1);
}
fwrite(text_out.string(), 1, text_out.length(), fout);
fclose(fout);
//cudaEventRecord (stop_1, 0);
//cudaEventSynchronize (stop_1);
//cudaEventElapsedTime (&elapsedTime_1, start_1, stop_1);
//cudaEventDestroy (start_1);
//cudaEventDestroy (stop_1);
//printf ("\n -- Time Taken for Tesseract to Run: %f %ms -- \n",elapsedTime_1);
//printf ("\nExit Successful\n");
cudaDeviceReset();
return 0; // Normal exit
}
#ifdef __MSW32__
char szAppName[] = "Tesseract"; //app name
int initialized = 0;
/**********************************************************************
* WinMain
*
* Main function for a windows program.
**********************************************************************/
int WINAPI WinMain( //main for windows //command line
HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpszCmdLine,
int nCmdShow) {
WNDCLASS wc;
HWND hwnd;
MSG msg;
char **argv;
char *argsin[2];
int argc;
int exit_code;
wc.style = CS_NOCLOSE | CS_OWNDC;
wc.lpfnWndProc = (WNDPROC) WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = NULL; //LoadIcon (NULL, IDI_APPLICATION);
wc.hCursor = NULL; //LoadCursor (NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1);
wc.lpszMenuName = NULL;
wc.lpszClassName = szAppName;
RegisterClass(&wc);
hwnd = CreateWindow (szAppName, szAppName,
WS_OVERLAPPEDWINDOW | WS_DISABLED,
CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, HWND_DESKTOP, NULL, hInstance, NULL);
argsin[0] = strdup (szAppName);
argsin[1] = strdup (lpszCmdLine);
/*allocate memory for the args. There can never be more than half*/
/*the total number of characters in the arguments.*/
argv = (char **)malloc(((strlen(argsin[0]) + strlen(argsin[1])) / 2 + 1) *
sizeof(char *));
/*now construct argv as it should be for C.*/
argc = parse_args (2, argsin, argv);
// ShowWindow (hwnd, nCmdShow);
// UpdateWindow (hwnd);
if (initialized) {
exit_code = main (argc, argv);
free (argsin[0]);
free (argsin[1]);
free(argv);
return exit_code;
}
while (GetMessage (&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
if (initialized) {
exit_code = main (argc, argv);
break;
}
else
exit_code = msg.wParam;
}
free (argsin[0]);
free (argsin[1]);
free(argv);
return exit_code;
}
/**********************************************************************
* WndProc
*
* Function to respond to messages.
**********************************************************************/
LONG WINAPI WndProc( //message handler
HWND hwnd, //window with message
UINT msg, //message typ
WPARAM wParam,
LPARAM lParam) {
HDC hdc;
if (msg == WM_CREATE) {
//
// Create a rendering context.
//
hdc = GetDC (hwnd);
ReleaseDC(hwnd, hdc);
initialized = 1;
return 0;
}
return DefWindowProc (hwnd, msg, wParam, lParam);
}
/**********************************************************************
* parse_args
*
* Turn a list of args into a new list of args with each separate
* whitespace spaced string being an arg.
**********************************************************************/
int
parse_args ( /*refine arg list */
int argc, /*no of input args */
char *argv[], /*input args */
char *arglist[] /*output args */
) {
int argcount; /*converted argc */
char *testchar; /*char in option string */
int arg; /*current argument */
argcount = 0; /*no of options */
for (arg = 0; arg < argc; arg++) {
testchar = argv[arg]; /*start of arg */
do {
while (*testchar
&& (*testchar == ' ' || *testchar == '\n'
|| *testchar == '\t'))
testchar++; /*skip white space */
if (*testchar) {
/*new arg */
arglist[argcount++] = testchar;
/*skip to white space */
for (testchar++; *testchar && *testchar != ' ' && *testchar != '\n' && *testchar != '\t'; testchar++) ;
if (*testchar)
*testchar++ = '\0'; /*turn to separate args */
}
}
while (*testchar);
}
return argcount; /*new number of args */
}
#endif
