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/*====================================================================*
- 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.
*====================================================================*/
/*
* wordsinorder.c
*
* wordsinorder dirin rootname [firstpage npages]
*
* dirin: directory of input pages
* 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"
/* Input variables */
static const l_int32 MIN_WORD_WIDTH = 6;
static const l_int32 MIN_WORD_HEIGHT = 4;
static const l_int32 MAX_WORD_WIDTH = 500;
static const l_int32 MAX_WORD_HEIGHT = 100;
#define BUF_SIZE 512
#define RENDER_PAGES 1
main(int argc,
char **argv)
{
char filename[BUF_SIZE];
char *dirin, *rootname, *fname;
l_int32 i, j, w, h, firstpage, npages, nfiles, ncomp;
l_int32 index, ival, rval, gval, bval;
BOX *box;
BOXA *boxa;
BOXAA *baa;
JBDATA *data;
JBCLASSER *classer;
NUMA *nai;
NUMAA *naa;
SARRAY *safiles;
PIX *pixs, *pixt1, *pixt2, *pixd;
PIXCMAP *cmap;
static char mainName[] = "wordsinorder";
if (argc != 3 && argc != 5)
exit(ERROR_INT(
" Syntax: wordsinorder dirin rootname [firstpage, npages]",
mainName, 1));
dirin = argv[1];
rootname = argv[2];
if (argc == 3) {
firstpage = 0;
npages = 0;
}
else {
firstpage = atoi(argv[3]);
npages = atoi(argv[4]);
}
/* Compute the word bounding boxes at 2x reduction, along with
* the textlines that they are in. */
safiles = getSortedPathnamesInDirectory(dirin, NULL, firstpage, npages);
nfiles = sarrayGetCount(safiles);
baa = boxaaCreate(nfiles);
naa = numaaCreate(nfiles);
for (i = 0; i < nfiles; i++) {
fname = sarrayGetString(safiles, i, 0);
if ((pixs = pixRead(fname)) == NULL) {
L_WARNING_INT("image file %d not read", mainName, i);
continue;
}
pixGetWordBoxesInTextlines(pixs, 2, MIN_WORD_WIDTH, MIN_WORD_HEIGHT,
MAX_WORD_WIDTH, MAX_WORD_HEIGHT,
&boxa, &nai);
boxaaAddBoxa(baa, boxa, L_INSERT);
numaaAddNuma(naa, nai, L_INSERT);
#if RENDER_PAGES
/* Show the results on a 2x reduced image, where each
* word is outlined and the color of the box depends on the
* computed textline. */
pixt1 = pixReduceRankBinary2(pixs, 2, NULL);
pixGetDimensions(pixt1, &w, &h, NULL);
pixd = pixCreate(w, h, 8);
cmap = pixcmapCreateRandom(8); /* first color is black */
pixSetColormap(pixd, cmap);
pixt2 = pixUnpackBinary(pixt1, 8, 1);
pixRasterop(pixd, 0, 0, w, h, PIX_SRC | PIX_DST, pixt2, 0, 0);
ncomp = boxaGetCount(boxa);
for (j = 0; j < ncomp; j++) {
box = boxaGetBox(boxa, j, L_CLONE);
numaGetIValue(nai, j, &ival);
index = (ival % 254) + 1;
pixcmapGetColor(cmap, index, &rval, &gval, &bval);
pixRenderBoxArb(pixd, box, 2, rval, gval, bval);
boxDestroy(&box);
}
snprintf(filename, BUF_SIZE, "%s.%05d", rootname, i);
fprintf(stderr, "filename: %s\n", filename);
pixWrite(filename, pixd, IFF_PNG);
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixDestroy(&pixs);
pixDestroy(&pixd);
#endif /* RENDER_PAGES */
}
boxaaDestroy(&baa);
numaaDestroy(&naa);
sarrayDestroy(&safiles);
return 0;
}
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