mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2024-12-11 23:19:04 +08:00
327 lines
12 KiB
C++
327 lines
12 KiB
C++
/**********************************************************************
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* File: tessedit.cpp (Formerly tessedit.c)
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* Description: Main program for merge of tess and editor.
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* Author: Ray Smith
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* Created: Tue Jan 07 15:21:46 GMT 1992
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*
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* (C) Copyright 1992, Hewlett-Packard Ltd.
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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** http://www.apache.org/licenses/LICENSE-2.0
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*
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**********************************************************************/
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// Include automatically generated configuration file if running autoconf
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#ifdef HAVE_CONFIG_H
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#include "config_auto.h"
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#endif
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#include <iostream>
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#include "allheaders.h"
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#include "baseapi.h"
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#include "basedir.h"
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#include "renderer.h"
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#include "strngs.h"
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#include "tprintf.h"
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#include "openclwrapper.h"
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#include "osdetect.h"
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/**********************************************************************
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* main()
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*
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**********************************************************************/
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int main(int argc, char **argv) {
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if ((argc == 2 && strcmp(argv[1], "-v") == 0) ||
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(argc == 2 && strcmp(argv[1], "--version") == 0)) {
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char *versionStrP;
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fprintf(stderr, "tesseract %s\n", tesseract::TessBaseAPI::Version());
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versionStrP = getLeptonicaVersion();
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fprintf(stderr, " %s\n", versionStrP);
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lept_free(versionStrP);
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versionStrP = getImagelibVersions();
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fprintf(stderr, " %s\n", versionStrP);
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lept_free(versionStrP);
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#ifdef USE_OPENCL
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cl_platform_id platform;
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cl_uint num_platforms;
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cl_device_id devices[2];
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cl_uint num_devices;
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char info[256];
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int i;
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fprintf(stderr, " OpenCL info:\n");
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clGetPlatformIDs(1, &platform, &num_platforms);
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fprintf(stderr, " Found %d platforms.\n", num_platforms);
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clGetPlatformInfo(platform, CL_PLATFORM_NAME, 256, info, 0);
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fprintf(stderr, " Platform name: %s.\n", info);
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clGetPlatformInfo(platform, CL_PLATFORM_VERSION, 256, info, 0);
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fprintf(stderr, " Version: %s.\n", info);
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clGetDeviceIDs(platform, CL_DEVICE_TYPE_ALL, 2, devices, &num_devices);
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fprintf(stderr, " Found %d devices.\n", num_devices);
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for (i = 0; i < num_devices; ++i) {
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clGetDeviceInfo(devices[i], CL_DEVICE_NAME, 256, info, 0);
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fprintf(stderr, " Device %d name: %s.\n", i+1, info);
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}
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#endif
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exit(0);
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}
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// Make the order of args a bit more forgiving than it used to be.
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const char* lang = "eng";
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const char* image = NULL;
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const char* outputbase = NULL;
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const char* datapath = NULL;
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bool noocr = false;
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bool list_langs = false;
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bool print_parameters = false;
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GenericVector<STRING> vars_vec, vars_values;
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tesseract::PageSegMode pagesegmode = tesseract::PSM_AUTO;
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int arg = 1;
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while (arg < argc && (outputbase == NULL || argv[arg][0] == '-')) {
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if (strcmp(argv[arg], "-l") == 0 && arg + 1 < argc) {
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lang = argv[arg + 1];
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++arg;
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} else if (strcmp(argv[arg], "--tessdata-dir") == 0 && arg + 1 < argc) {
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datapath = argv[arg + 1];
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++arg;
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} else if (strcmp(argv[arg], "--user-words") == 0 && arg + 1 < argc) {
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vars_vec.push_back("user_words_file");
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vars_values.push_back(argv[arg + 1]);
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++arg;
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} else if (strcmp(argv[arg], "--user-patterns") == 0 && arg + 1 < argc) {
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vars_vec.push_back("user_patterns_file");
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vars_values.push_back(argv[arg + 1]);
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++arg;
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} else if (strcmp(argv[arg], "--list-langs") == 0) {
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noocr = true;
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list_langs = true;
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} else if (strcmp(argv[arg], "-psm") == 0 && arg + 1 < argc) {
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pagesegmode = static_cast<tesseract::PageSegMode>(atoi(argv[arg + 1]));
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++arg;
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} else if (strcmp(argv[arg], "--print-parameters") == 0) {
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noocr = true;
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print_parameters = true;
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} else if (strcmp(argv[arg], "-c") == 0 && arg + 1 < argc) {
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// handled properly after api init
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++arg;
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} else if (image == NULL) {
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image = argv[arg];
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} else if (outputbase == NULL) {
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outputbase = argv[arg];
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}
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++arg;
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}
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if (argc == 2 && strcmp(argv[1], "--list-langs") == 0) {
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list_langs = true;
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noocr = true;
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}
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if (outputbase == NULL && noocr == false) {
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fprintf(stderr, "Usage:\n %s imagename|stdin outputbase|stdout "
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"[options...] [configfile...]\n\n", argv[0]);
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fprintf(stderr, "OCR options:\n");
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fprintf(stderr, " --tessdata-dir /path\tspecify the location of tessdata"
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" path\n");
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fprintf(stderr, " --user-words /path/to/file\tspecify the location of user"
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" words file\n");
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fprintf(stderr, " --user-patterns /path/to/file\tspecify the location of"
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" user patterns file\n");
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fprintf(stderr, " -l lang[+lang]\tspecify language(s) used for OCR\n");
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fprintf(stderr, " -c configvar=value\tset value for control parameter.\n"
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"\t\t\tMultiple -c arguments are allowed.\n");
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fprintf(stderr, " -psm pagesegmode\tspecify page segmentation mode.\n");
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fprintf(stderr, "These options must occur before any configfile.\n\n");
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fprintf(stderr,
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"pagesegmode values are:\n"
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" 0 = Orientation and script detection (OSD) only.\n"
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" 1 = Automatic page segmentation with OSD.\n"
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" 2 = Automatic page segmentation, but no OSD, or OCR\n"
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" 3 = Fully automatic page segmentation, but no OSD. (Default)\n"
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" 4 = Assume a single column of text of variable sizes.\n"
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" 5 = Assume a single uniform block of vertically aligned text.\n"
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" 6 = Assume a single uniform block of text.\n"
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" 7 = Treat the image as a single text line.\n"
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" 8 = Treat the image as a single word.\n"
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" 9 = Treat the image as a single word in a circle.\n"
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" 10 = Treat the image as a single character.\n\n");
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fprintf(stderr, "Single options:\n");
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fprintf(stderr, " -v --version: version info\n");
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fprintf(stderr, " --list-langs: list available languages for tesseract "
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"engine. Can be used with --tessdata-dir.\n");
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fprintf(stderr, " --print-parameters: print tesseract parameters to the "
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"stdout.\n");
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exit(1);
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}
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if (outputbase != NULL && strcmp(outputbase, "-") &&
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strcmp(outputbase, "stdout")) {
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tprintf("Tesseract Open Source OCR Engine v%s with Leptonica\n",
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tesseract::TessBaseAPI::Version());
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}
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PERF_COUNT_START("Tesseract:main")
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tesseract::TessBaseAPI api;
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api.SetOutputName(outputbase);
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int rc = api.Init(datapath, lang, tesseract::OEM_DEFAULT,
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&(argv[arg]), argc - arg, &vars_vec, &vars_values, false);
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if (rc) {
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fprintf(stderr, "Could not initialize tesseract.\n");
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exit(1);
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}
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char opt1[255], opt2[255];
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for (arg = 0; arg < argc; arg++) {
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if (strcmp(argv[arg], "-c") == 0 && arg + 1 < argc) {
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strncpy(opt1, argv[arg + 1], 255);
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char *p = strchr(opt1, '=');
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if (!p) {
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fprintf(stderr, "Missing = in configvar assignment\n");
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exit(1);
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}
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*p = 0;
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strncpy(opt2, strchr(argv[arg + 1], '=') + 1, 255);
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opt2[254] = 0;
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++arg;
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if (!api.SetVariable(opt1, opt2)) {
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fprintf(stderr, "Could not set option: %s=%s\n", opt1, opt2);
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}
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}
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}
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if (list_langs) {
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GenericVector<STRING> languages;
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api.GetAvailableLanguagesAsVector(&languages);
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fprintf(stderr, "List of available languages (%d):\n",
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languages.size());
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for (int index = 0; index < languages.size(); ++index) {
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STRING& string = languages[index];
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fprintf(stderr, "%s\n", string.string());
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}
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api.End();
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exit(0);
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}
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if (print_parameters) {
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FILE* fout = stdout;
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fprintf(stdout, "Tesseract parameters:\n");
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api.PrintVariables(fout);
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api.End();
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exit(0);
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}
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// We have 2 possible sources of pagesegmode: a config file and
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// the command line. For backwards compatability reasons, the
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// default in tesseract is tesseract::PSM_SINGLE_BLOCK, but the
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// default for this program is tesseract::PSM_AUTO. We will let
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// the config file take priority, so the command-line default
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// can take priority over the tesseract default, so we use the
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// value from the command line only if the retrieved mode
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// is still tesseract::PSM_SINGLE_BLOCK, indicating no change
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// in any config file. Therefore the only way to force
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// tesseract::PSM_SINGLE_BLOCK is from the command line.
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// It would be simpler if we could set the value before Init,
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// but that doesn't work.
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if (api.GetPageSegMode() == tesseract::PSM_SINGLE_BLOCK)
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api.SetPageSegMode(pagesegmode);
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if (pagesegmode == tesseract::PSM_AUTO_ONLY ||
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pagesegmode == tesseract::PSM_OSD_ONLY) {
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int ret_val = 0;
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Pix* pixs = pixRead(image);
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if (!pixs) {
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fprintf(stderr, "Cannot open input file: %s\n", image);
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exit(2);
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}
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api.SetImage(pixs);
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if (pagesegmode == tesseract::PSM_OSD_ONLY) {
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OSResults osr;
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if (api.DetectOS(&osr)) {
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int orient = osr.best_result.orientation_id;
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int script_id = osr.get_best_script(orient);
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float orient_oco = osr.best_result.oconfidence;
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float orient_sco = osr.best_result.sconfidence;
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tprintf("Orientation: %d\nOrientation in degrees: %d\n" \
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"Orientation confidence: %.2f\n" \
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"Script: %d\nScript confidence: %.2f\n",
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orient, OrientationIdToValue(orient), orient_oco,
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script_id, orient_sco);
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} else {
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ret_val = 1;
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}
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} else {
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tesseract::Orientation orientation;
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tesseract::WritingDirection direction;
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tesseract::TextlineOrder order;
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float deskew_angle;
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tesseract::PageIterator* it = api.AnalyseLayout();
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if (it) {
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it->Orientation(&orientation, &direction, &order, &deskew_angle);
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tprintf("Orientation: %d\nWritingDirection: %d\nTextlineOrder: %d\n" \
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"Deskew angle: %.4f\n",
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orientation, direction, order, deskew_angle);
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} else {
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ret_val = 1;
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}
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delete it;
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}
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pixDestroy(&pixs);
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exit(ret_val);
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}
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bool b;
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tesseract::PointerVector<tesseract::TessResultRenderer> renderers;
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api.GetBoolVariable("tessedit_create_hocr", &b);
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if (b) {
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bool font_info;
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api.GetBoolVariable("hocr_font_info", &font_info);
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renderers.push_back(new tesseract::TessHOcrRenderer(outputbase, font_info));
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}
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#ifndef NO_CUBE_BUILD
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api.GetBoolVariable("tessedit_create_pdf", &b);
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if (b) {
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renderers.push_back(new tesseract::TessPDFRenderer(outputbase,
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api.GetDatapath()));
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}
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#endif
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api.GetBoolVariable("tessedit_write_unlv", &b);
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if (b) renderers.push_back(new tesseract::TessUnlvRenderer(outputbase));
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api.GetBoolVariable("tessedit_create_boxfile", &b);
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if (b) renderers.push_back(new tesseract::TessBoxTextRenderer(outputbase));
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api.GetBoolVariable("tessedit_create_txt", &b);
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if (b) renderers.push_back(new tesseract::TessTextRenderer(outputbase));
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if (!renderers.empty()) {
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// Since the PointerVector auto-deletes, null-out the renderers that are
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// added to the root, and leave the root in the vector.
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for (int r = 1; r < renderers.size(); ++r) {
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renderers[0]->insert(renderers[r]);
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renderers[r] = NULL;
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}
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if (!api.ProcessPages(image, NULL, 0, renderers[0])) {
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fprintf(stderr, "Error during processing.\n");
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exit(1);
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}
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}
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PERF_COUNT_END
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return 0; // Normal exit
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}
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