/**********************************************************************
* main()
*
**********************************************************************/
int main(int argc, char **argv) {
const char* lang = "eng";
const char* image = NULL;
const char* outputbase = NULL;
const char* datapath = NULL;
bool list_langs = false;
bool print_parameters = false;
GenericVector<STRING> vars_vec, vars_values;
int arg_i = 1;
tesseract::PageSegMode pagesegmode = tesseract::PSM_AUTO;
ParseArgs(argc, argv,
&lang, &image, &outputbase, &datapath,
&list_langs, &print_parameters,
&vars_vec, &vars_values, &arg_i, &pagesegmode);
bool banner = false;
if (outputbase != NULL && strcmp(outputbase, "-") &&
strcmp(outputbase, "stdout")) {
banner = true;
}
PERF_COUNT_START("Tesseract:main")
tesseract::TessBaseAPI api;
api.SetOutputName(outputbase);
int init_failed = api.Init(datapath, lang, tesseract::OEM_DEFAULT,
&(argv[arg_i]), argc - arg_i, &vars_vec, &vars_values, false);
if (init_failed) {
fprintf(stderr, "Could not initialize tesseract.\n");
exit(1);
}
SetVariablesFromCLArgs(&api, argc, argv);
if (list_langs) {
PrintLangsList(&api);
exit(0);
}
if (print_parameters) {
FILE* fout = stdout;
fprintf(stdout, "Tesseract parameters:\n");
api.PrintVariables(fout);
api.End();
exit(0);
}
FixPageSegMode(&api, pagesegmode);
if (pagesegmode == tesseract::PSM_AUTO_ONLY) {
int ret_val = 0;
Pix* pixs = pixRead(image);
if (!pixs) {
fprintf(stderr, "Cannot open input file: %s\n", image);
exit(2);
}
api.SetImage(pixs);
tesseract::Orientation orientation;
tesseract::WritingDirection direction;
tesseract::TextlineOrder order;
float deskew_angle;
tesseract::PageIterator* it = api.AnalyseLayout();
if (it) {
it->Orientation(&orientation, &direction, &order, &deskew_angle);
tprintf("Orientation: %d\nWritingDirection: %d\nTextlineOrder: %d\n" \
"Deskew angle: %.4f\n",
orientation, direction, order, deskew_angle);
} else {
ret_val = 1;
}
delete it;
pixDestroy(&pixs);
exit(ret_val);
}
// set in_training_mode to true when using one of these configs:
// ambigs.train, box.train, box.train.stderr, linebox, rebox
bool b = false;
bool in_training_mode =
(api.GetBoolVariable("tessedit_ambigs_training", &b) && b) ||
(api.GetBoolVariable("tessedit_resegment_from_boxes", &b) && b) ||
(api.GetBoolVariable("tessedit_make_boxes_from_boxes", &b) && b);
tesseract::PointerVector<tesseract::TessResultRenderer> renderers;
if (in_training_mode) {
renderers.push_back(NULL);
} else {
PreloadRenderers(&api, &renderers, pagesegmode, outputbase);
}
if (!renderers.empty()) {
if (banner) PrintBanner();
bool succeed = api.ProcessPages(image, NULL, 0, renderers[0]);
if (!succeed) {
fprintf(stderr, "Error during processing.\n");
exit(1);
}
}
PERF_COUNT_END
return 0; // Normal exit
}
int main(int argc, char **argv) {
if ((argc == 2 && strcmp(argv[1], "-v") == 0) ||
(argc == 2 && strcmp(argv[1], "--version") == 0)) {
char *versionStrP;
fprintf(stderr, "tesseract %s\n", tesseract::TessBaseAPI::Version());
versionStrP = getLeptonicaVersion();
fprintf(stderr, " %s\n", versionStrP);
lept_free(versionStrP);
versionStrP = getImagelibVersions();
fprintf(stderr, " %s\n", versionStrP);
lept_free(versionStrP);
#ifdef USE_OPENCL
cl_platform_id platform;
cl_uint num_platforms;
cl_device_id devices[2];
cl_uint num_devices;
char info[256];
int i;
fprintf(stderr, " OpenCL info:\n");
clGetPlatformIDs(1, &platform, &num_platforms);
fprintf(stderr, " Found %d platforms.\n", num_platforms);
clGetPlatformInfo(platform, CL_PLATFORM_NAME, 256, info, 0);
fprintf(stderr, " Platform name: %s.\n", info);
clGetPlatformInfo(platform, CL_PLATFORM_VERSION, 256, info, 0);
fprintf(stderr, " Version: %s.\n", info);
clGetDeviceIDs(platform, CL_DEVICE_TYPE_ALL, 2, devices, &num_devices);
fprintf(stderr, " Found %d devices.\n", num_devices);
for (i = 0; i < num_devices; ++i) {
clGetDeviceInfo(devices[i], CL_DEVICE_NAME, 256, info, 0);
fprintf(stderr, " Device %d name: %s.\n", i+1, info);
}
#endif
exit(0);
}
// Make the order of args a bit more forgiving than it used to be.
const char* lang = "eng";
const char* image = NULL;
const char* outputbase = NULL;
const char* datapath = NULL;
bool noocr = false;
bool list_langs = false;
bool print_parameters = false;
GenericVector<STRING> vars_vec, vars_values;
tesseract::PageSegMode pagesegmode = tesseract::PSM_AUTO;
int arg = 1;
while (arg < argc && (outputbase == NULL || argv[arg][0] == '-')) {
if (strcmp(argv[arg], "-l") == 0 && arg + 1 < argc) {
lang = argv[arg + 1];
++arg;
} else if (strcmp(argv[arg], "--tessdata-dir") == 0 && arg + 1 < argc) {
datapath = argv[arg + 1];
++arg;
} else if (strcmp(argv[arg], "--user-words") == 0 && arg + 1 < argc) {
vars_vec.push_back("user_words_file");
vars_values.push_back(argv[arg + 1]);
++arg;
} else if (strcmp(argv[arg], "--user-patterns") == 0 && arg + 1 < argc) {
vars_vec.push_back("user_patterns_file");
vars_values.push_back(argv[arg + 1]);
++arg;
} else if (strcmp(argv[arg], "--list-langs") == 0) {
noocr = true;
list_langs = true;
} else if (strcmp(argv[arg], "-psm") == 0 && arg + 1 < argc) {
pagesegmode = static_cast<tesseract::PageSegMode>(atoi(argv[arg + 1]));
++arg;
} else if (strcmp(argv[arg], "--print-parameters") == 0) {
noocr = true;
print_parameters = true;
} else if (strcmp(argv[arg], "-c") == 0 && arg + 1 < argc) {
// handled properly after api init
++arg;
} else if (image == NULL) {
image = argv[arg];
} else if (outputbase == NULL) {
outputbase = argv[arg];
}
++arg;
}
if (argc == 2 && strcmp(argv[1], "--list-langs") == 0) {
list_langs = true;
noocr = true;
}
if (outputbase == NULL && noocr == false) {
fprintf(stderr, "Usage:\n %s imagename|stdin outputbase|stdout "
"[options...] [configfile...]\n\n", argv[0]);
fprintf(stderr, "OCR options:\n");
fprintf(stderr, " --tessdata-dir /path\tspecify the location of tessdata"
" path\n");
fprintf(stderr, " --user-words /path/to/file\tspecify the location of user"
" words file\n");
fprintf(stderr, " --user-patterns /path/to/file\tspecify the location of"
" user patterns file\n");
fprintf(stderr, " -l lang[+lang]\tspecify language(s) used for OCR\n");
fprintf(stderr, " -c configvar=value\tset value for control parameter.\n"
"\t\t\tMultiple -c arguments are allowed.\n");
fprintf(stderr, " -psm pagesegmode\tspecify page segmentation mode.\n");
fprintf(stderr, "These options must occur before any configfile.\n\n");
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\n");
fprintf(stderr, "Single options:\n");
fprintf(stderr, " -v --version: version info\n");
fprintf(stderr, " --list-langs: list available languages for tesseract "
"engine. Can be used with --tessdata-dir.\n");
fprintf(stderr, " --print-parameters: print tesseract parameters to the "
"stdout.\n");
exit(1);
}
if (outputbase != NULL && strcmp(outputbase, "-") &&
strcmp(outputbase, "stdout")) {
tprintf("Tesseract Open Source OCR Engine v%s with Leptonica\n",
tesseract::TessBaseAPI::Version());
}
PERF_COUNT_START("Tesseract:main")
tesseract::TessBaseAPI api;
api.SetOutputName(outputbase);
int rc = api.Init(datapath, lang, tesseract::OEM_DEFAULT,
&(argv[arg]), argc - arg, &vars_vec, &vars_values, false);
if (rc) {
fprintf(stderr, "Could not initialize tesseract.\n");
exit(1);
}
char opt1[255], opt2[255];
for (arg = 0; arg < argc; arg++) {
if (strcmp(argv[arg], "-c") == 0 && arg + 1 < argc) {
strncpy(opt1, argv[arg + 1], 255);
char *p = strchr(opt1, '=');
if (!p) {
fprintf(stderr, "Missing = in configvar assignment\n");
exit(1);
}
*p = 0;
strncpy(opt2, strchr(argv[arg + 1], '=') + 1, 255);
opt2[254] = 0;
++arg;
if (!api.SetVariable(opt1, opt2)) {
fprintf(stderr, "Could not set option: %s=%s\n", opt1, opt2);
}
}
}
if (list_langs) {
GenericVector<STRING> languages;
api.GetAvailableLanguagesAsVector(&languages);
fprintf(stderr, "List of available languages (%d):\n",
languages.size());
for (int index = 0; index < languages.size(); ++index) {
STRING& string = languages[index];
fprintf(stderr, "%s\n", string.string());
}
api.End();
exit(0);
}
if (print_parameters) {
FILE* fout = stdout;
fprintf(stdout, "Tesseract parameters:\n");
api.PrintVariables(fout);
api.End();
exit(0);
}
// We have 2 possible sources of pagesegmode: a config file and
// the command line. For backwards compatibility 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);
if (pagesegmode == tesseract::PSM_AUTO_ONLY ||
pagesegmode == tesseract::PSM_OSD_ONLY) {
int ret_val = 0;
Pix* pixs = pixRead(image);
if (!pixs) {
fprintf(stderr, "Cannot open input file: %s\n", image);
exit(2);
}
api.SetImage(pixs);
if (pagesegmode == tesseract::PSM_OSD_ONLY) {
OSResults osr;
if (api.DetectOS(&osr)) {
int orient = osr.best_result.orientation_id;
int script_id = osr.get_best_script(orient);
float orient_oco = osr.best_result.oconfidence;
float orient_sco = osr.best_result.sconfidence;
tprintf("Orientation: %d\nOrientation in degrees: %d\n" \
"Orientation confidence: %.2f\n" \
"Script: %d\nScript confidence: %.2f\n",
orient, OrientationIdToValue(orient), orient_oco,
script_id, orient_sco);
} else {
ret_val = 1;
}
} else {
tesseract::Orientation orientation;
tesseract::WritingDirection direction;
tesseract::TextlineOrder order;
float deskew_angle;
tesseract::PageIterator* it = api.AnalyseLayout();
if (it) {
it->Orientation(&orientation, &direction, &order, &deskew_angle);
tprintf("Orientation: %d\nWritingDirection: %d\nTextlineOrder: %d\n" \
"Deskew angle: %.4f\n",
orientation, direction, order, deskew_angle);
} else {
ret_val = 1;
}
delete it;
}
pixDestroy(&pixs);
exit(ret_val);
}
bool b;
tesseract::PointerVector<tesseract::TessResultRenderer> renderers;
api.GetBoolVariable("tessedit_create_hocr", &b);
if (b) {
bool font_info;
api.GetBoolVariable("hocr_font_info", &font_info);
renderers.push_back(new tesseract::TessHOcrRenderer(outputbase, font_info));
}
api.GetBoolVariable("tessedit_create_pdf", &b);
if (b) {
renderers.push_back(new tesseract::TessPDFRenderer(outputbase,
api.GetDatapath()));
}
api.GetBoolVariable("tessedit_write_unlv", &b);
if (b) renderers.push_back(new tesseract::TessUnlvRenderer(outputbase));
api.GetBoolVariable("tessedit_create_boxfile", &b);
if (b) renderers.push_back(new tesseract::TessBoxTextRenderer(outputbase));
api.GetBoolVariable("tessedit_create_txt", &b);
if (b) renderers.push_back(new tesseract::TessTextRenderer(outputbase));
if (!renderers.empty()) {
// Since the PointerVector auto-deletes, null-out the renderers that are
// added to the root, and leave the root in the vector.
for (int r = 1; r < renderers.size(); ++r) {
renderers[0]->insert(renderers[r]);
renderers[r] = NULL;
}
if (!api.ProcessPages(image, NULL, 0, renderers[0])) {
fprintf(stderr, "Error during processing.\n");
exit(1);
}
}
PERF_COUNT_END
return 0; // Normal exit
}
int main(int argc, char** argv) {
const char* lang = "eng";
const char* image = NULL;
const char* outputbase = NULL;
const char* datapath = NULL;
bool list_langs = false;
bool print_parameters = false;
int arg_i = 1;
tesseract::PageSegMode pagesegmode = tesseract::PSM_AUTO;
tesseract::OcrEngineMode enginemode = tesseract::OEM_DEFAULT;
/* main() calls functions like ParseArgs which call exit().
* This results in memory leaks if vars_vec and vars_values are
* declared as auto variables (destructor is not called then). */
static GenericVector<STRING> vars_vec;
static GenericVector<STRING> vars_values;
#if !defined(DEBUG)
// Disable debugging and informational messages from Leptonica.
setMsgSeverity(L_SEVERITY_WARNING);
#endif
#if defined(HAVE_TIFFIO_H) && defined(_WIN32)
/* Show libtiff warnings on console (not in GUI). */
TIFFSetWarningHandler(Win32WarningHandler);
#endif /* HAVE_TIFFIO_H && _WIN32 */
ParseArgs(argc, argv, &lang, &image, &outputbase, &datapath, &list_langs,
&print_parameters, &vars_vec, &vars_values, &arg_i, &pagesegmode,
&enginemode);
bool banner = false;
if (outputbase != NULL && strcmp(outputbase, "-") &&
strcmp(outputbase, "stdout")) {
banner = true;
}
PERF_COUNT_START("Tesseract:main")
tesseract::TessBaseAPI api;
api.SetOutputName(outputbase);
int init_failed = api.Init(datapath, lang, enginemode, &(argv[arg_i]),
argc - arg_i, &vars_vec, &vars_values, false);
if (init_failed) {
fprintf(stderr, "Could not initialize tesseract.\n");
exit(1);
}
SetVariablesFromCLArgs(&api, argc, argv);
if (list_langs) {
PrintLangsList(&api);
exit(0);
}
if (print_parameters) {
FILE* fout = stdout;
fprintf(stdout, "Tesseract parameters:\n");
api.PrintVariables(fout);
api.End();
exit(0);
}
FixPageSegMode(&api, pagesegmode);
if (pagesegmode == tesseract::PSM_AUTO_ONLY) {
int ret_val = 0;
Pix* pixs = pixRead(image);
if (!pixs) {
fprintf(stderr, "Cannot open input file: %s\n", image);
exit(2);
}
api.SetImage(pixs);
tesseract::Orientation orientation;
tesseract::WritingDirection direction;
tesseract::TextlineOrder order;
float deskew_angle;
tesseract::PageIterator* it = api.AnalyseLayout();
if (it) {
it->Orientation(&orientation, &direction, &order, &deskew_angle);
tprintf(
"Orientation: %d\nWritingDirection: %d\nTextlineOrder: %d\n"
"Deskew angle: %.4f\n",
orientation, direction, order, deskew_angle);
} else {
ret_val = 1;
}
delete it;
pixDestroy(&pixs);
exit(ret_val);
}
// set in_training_mode to true when using one of these configs:
// ambigs.train, box.train, box.train.stderr, linebox, rebox
bool b = false;
bool in_training_mode =
(api.GetBoolVariable("tessedit_ambigs_training", &b) && b) ||
(api.GetBoolVariable("tessedit_resegment_from_boxes", &b) && b) ||
(api.GetBoolVariable("tessedit_make_boxes_from_boxes", &b) && b);
tesseract::PointerVector<tesseract::TessResultRenderer> renderers;
if (in_training_mode) {
renderers.push_back(NULL);
} else {
PreloadRenderers(&api, &renderers, pagesegmode, outputbase);
}
if (!renderers.empty()) {
if (banner) PrintBanner();
bool succeed = api.ProcessPages(image, NULL, 0, renderers[0]);
if (!succeed) {
fprintf(stderr, "Error during processing.\n");
exit(1);
}
}
PERF_COUNT_END
return 0; // Normal exit
}
