1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
/*====================================================================*
- Copyright (C) 2001 Leptonica. All rights reserved.
- This software is distributed in the hope that it will be
- useful, but with NO WARRANTY OF ANY KIND.
- No author or distributor accepts responsibility to anyone for the
- consequences of using this software, or for whether it serves any
- particular purpose or works at all, unless he or she says so in
- writing. Everyone is granted permission to copy, modify and
- redistribute this source code, for commercial or non-commercial
- purposes, with the following restrictions: (1) the origin of this
- source code must not be misrepresented; (2) modified versions must
- be plainly marked as such; and (3) this notice may not be removed
- or altered from any source or modified source distribution.
*====================================================================*/
/*
* jbwords.c
*
* jbwords dirin thresh weight rootname [firstpage npages]
*
* dirin: directory of input pages
* reduction: 1 (full res) or 2 (half-res)
* thresh: 0.80 is a reasonable compromise between accuracy
* and number of classes, for characters
* weight: 0.6 seems to work reasonably with thresh = 0.8.
* rootname: used for naming the two output files (templates
* and c.c. data)
* firstpage: <optional> 0-based; default is 0
* npages: <optional> use 0 for all pages; default is 0
*
*/
#include <stdio.h>
#include <stdlib.h>
#include "allheaders.h"
/* Eliminate very large "words" */
static const l_int32 MAX_WORD_WIDTH = 500;
static const l_int32 MAX_WORD_HEIGHT = 200;
#define BUF_SIZE 512
/* select additional debug output */
#define RENDER_PAGES 1
#define RENDER_DEBUG 1
main(int argc,
char **argv)
{
char filename[BUF_SIZE];
char *dirin, *rootname, *fname;
l_int32 reduction, i, firstpage, npages, nfiles;
l_float32 thresh, weight;
JBDATA *data;
JBCLASSER *classer;
NUMA *natl;
SARRAY *safiles;
PIX *pix;
PIXA *pixa, *pixadb;
static char mainName[] = "jbwords";
if (argc != 6 && argc != 8)
exit(ERROR_INT(
" Syntax: jbwords dirin reduction thresh weight rootname [firstpage, npages]",
mainName, 1));
dirin = argv[1];
reduction = atoi(argv[2]);
thresh = atof(argv[3]);
weight = atof(argv[4]);
rootname = argv[5];
if (argc == 6) {
firstpage = 0;
npages = 0;
}
else {
firstpage = atoi(argv[6]);
npages = atoi(argv[7]);
}
classer = jbWordsInTextlines(dirin, reduction, MAX_WORD_WIDTH,
MAX_WORD_HEIGHT, thresh, weight,
&natl, firstpage, npages);
/* Save and write out the result */
data = jbDataSave(classer);
jbDataWrite(rootname, data);
#if RENDER_PAGES
/* Render the pages from the classifier data, and write to file.
* Use debugflag == FALSE to omit outlines of each component. */
pixa = jbDataRender(data, FALSE);
npages = pixaGetCount(pixa);
for (i = 0; i < npages; i++) {
pix = pixaGetPix(pixa, i, L_CLONE);
snprintf(filename, BUF_SIZE, "%s.%05d", rootname, i);
fprintf(stderr, "filename: %s\n", filename);
pixWrite(filename, pix, IFF_PNG);
pixDestroy(&pix);
}
pixaDestroy(&pixa);
#endif /* RENDER_PAGES */
#if RENDER_DEBUG
/* Use debugflag == TRUE to see outlines of each component. */
pixadb = jbDataRender(data, TRUE);
/* Write the debug pages out */
npages = pixaGetCount(pixadb);
for (i = 0; i < npages; i++) {
pix = pixaGetPix(pixadb, i, L_CLONE);
snprintf(filename, BUF_SIZE, "%s.db.%05d", rootname, i);
fprintf(stderr, "filename: %s\n", filename);
pixWrite(filename, pix, IFF_PNG);
pixDestroy(&pix);
}
pixaDestroy(&pixadb);
#endif /* RENDER_DEBUG */
jbClasserDestroy(&classer);
jbDataDestroy(&data);
numaDestroy(&natl);
exit(0);
}
|
