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242 lines
6.9 KiB
Plaintext
242 lines
6.9 KiB
Plaintext
/*
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This is a Optical-Character-Recognition program
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Copyright (C) 2000-2009 Joerg Schulenburg
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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see README for EMAIL-address
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sometimes I have written comments in german language, sorry for that
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This file was retrieved from pgm2asc.cc of Joerg, in order to have
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a library of the ocr-engine from Klaas Freitag
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <assert.h>
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#include <string.h>
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#ifdef HAVE_GETTIMEOFDAY
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#include <sys/time.h>
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include "pnm.h"
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#include "pgm2asc.h"
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#include "pcx.h"
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#include "ocr0.h" /* only_numbers */
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#include "progress.h"
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#include "version.h"
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static void out_version(int v) {
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fprintf(stderr, " Optical Character Recognition --- gocr "
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version_string " " release_string "\n"
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" Copyright (C) 2001-2009 Joerg Schulenburg GPG=1024D/53BDFBE3\n"
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" released under the GNU General Public License\n");
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/* as recommended, (c) and license should be part of the binary */
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/* no email because of SPAM, see README for contacting the author */
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if (v)
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fprintf(stderr, " use option -h for help\n");
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if (v & 2)
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exit(1);
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return;
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}
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static void help(void) {
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out_version(0);
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/* output is shortened to essentials, see manual page for details */
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fprintf(stderr,
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" using: gocr [options] pnm_file_name # use - for stdin\n"
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" options (see gocr manual pages for more details):\n"
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" -h, --help\n"
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" -i name - input image file (pnm,pgm,pbm,ppm,pcx,...)\n"
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" -o name - output file (redirection of stdout)\n"
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" -e name - logging file (redirection of stderr)\n"
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" -x name - progress output to fifo (see manual)\n"
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" -p name - database path including final slash (default is ./db/)\n");
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fprintf(stderr, /* string length less than 509 bytes for ISO C89 */
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" -f fmt - output format (ISO8859_1 TeX HTML XML UTF8 ASCII)\n"
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" -l num - threshold grey level 0<160<=255 (0 = autodetect)\n"
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" -d num - dust_size (remove small clusters, -1 = autodetect)\n"
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" -s num - spacewidth/dots (0 = autodetect)\n"
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" -v num - verbose (see manual page)\n"
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" -c string - list of chars (debugging, see manual)\n"
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" -C string - char filter (ex. hexdigits: ""0-9A-Fx"", only ASCII)\n"
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" -m num - operation modes (bitpattern, see manual)\n");
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fprintf(stderr, /* string length less than 509 bytes for ISO C89 */
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" -a num - value of certainty (in percent, 0..100, default=95)\n"
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" -u string - output this string for every unrecognized character\n");
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fprintf(stderr, /* string length less than 509 bytes for ISO C89 */
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" examples:\n"
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"\tgocr -m 4 text1.pbm # do layout analyzis\n"
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"\tgocr -m 130 -p ./database/ text1.pbm # extend database\n"
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"\tdjpeg -pnm -gray text.jpg | gocr - # use jpeg-file via pipe\n"
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"\n");
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fprintf(stderr, " webpage: http://jocr.sourceforge.net/\n");
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exit(0);
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}
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#ifdef HAVE_GETTIMEOFDAY
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/* from the glibc documentation */
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static int timeval_subtract (struct timeval *result, struct timeval *x,
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struct timeval *y) {
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/* Perform the carry for the later subtraction by updating Y. */
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if (x->tv_usec < y->tv_usec) {
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int nsec = (y->tv_usec - x->tv_usec) / 1000000 + 1;
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y->tv_usec -= 1000000 * nsec;
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y->tv_sec += nsec;
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}
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if (x->tv_usec - y->tv_usec > 1000000) {
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int nsec = (x->tv_usec - y->tv_usec) / 1000000;
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y->tv_usec += 1000000 * nsec;
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y->tv_sec -= nsec;
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}
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/* Compute the time remaining to wait.
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`tv_usec' is certainly positive. */
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result->tv_sec = x->tv_sec - y->tv_sec;
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result->tv_usec = x->tv_usec - y->tv_usec;
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/* Return 1 if result is negative. */
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return x->tv_sec < y->tv_sec;
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}
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#endif
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static void process_arguments(job_t *job)
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{
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#ifdef HAVE_PGM_H
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pnm_init(&argn, &argv);
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#endif
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job->cfg.out_format=XML; else
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job->cfg.cfilter = "0-9";
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job->src.fname = "patch00000.pgm"; // TODO
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}
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static int read_picture(job_t *job) {
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int rc=0;
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assert(job);
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if (strstr(job->src.fname, ".pcx"))
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readpcx(job->src.fname, &job->src.p, job->cfg.verbose);
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else
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rc=readpgm(job->src.fname, &job->src.p, job->cfg.verbose);
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return rc; /* 1 for multiple images, 0 else */
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}
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/* subject of change, we need more output for XML (ToDo) */
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void print_output(job_t *job) {
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int linecounter = 0;
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const char *line;
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assert(job);
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linecounter = 0;
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line = getTextLine(linecounter++);
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while (line) {
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/* notice: decode() is shiftet to getTextLine since 0.38 */
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fputs(line, stdout);
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if (job->cfg.out_format==HTML) fputs("<br />",stdout);
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if (job->cfg.out_format!=XML) fputc('\n', stdout);
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line = getTextLine(linecounter++);
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}
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free_textlines();
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}
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/* FIXME jb: remove JOB; */
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job_t *JOB;
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/* -------------------------------------------------------------
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// ------ MAIN - replace this by your own aplication!
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// ------------------------------------------------------------- */
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int main(int argn, char *argv[]) {
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int multipnm=1;
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job_t job;
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setvbuf(stdout, (char *) NULL, _IONBF, 0); /* not buffered */
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while (multipnm==1) {
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job_init(&job);
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// process_arguments(&job, argn, argv);
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mark_start(&job);
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multipnm = read_picture(&job);
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/* separation of main and rest for using as lib
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this will be changed later => introduction of set_option()
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for better communication to the engine */
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if (multipnm<0) break; /* read error */
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/* call main loop */
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pgm2asc(&job);
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mark_end(&job);
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job_free(&job);
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}
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return 0;
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}
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void test() {
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int multipnm=1;
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job_t job;
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while (multipnm==1) {
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job_init(&job);
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job->cfg.out_format=XML;
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job->cfg.cfilter = "0-9";
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job->src.fname = "patch00000.pgm"; // TODO
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multipnm = read_picture(&job);
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/* separation of main and rest for using as lib
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this will be changed later => introduction of set_option()
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for better communication to the engine */
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if (multipnm<0) break; /* read error */
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/* call main loop */
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pgm2asc(&job);
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int linecounter = 0;
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const char *line;
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assert(job);
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linecounter = 0;
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line = getTextLine(linecounter++);
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while (line) {
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//fputs(line, stdout);
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//Interpret line here
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line = getTextLine(linecounter++);
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}
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free_textlines();
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job_free(&job);
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}
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return;
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}
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