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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.
*====================================================================*/
/*
* maketile.c
*
* Generates a single image tiling of all images of a specific depth
* in a directory. The tiled images are scaled by a specified
* isotropic scale factor. One can also specify the approximate width
* of the output image file, and the background color that is between
* the tiled images.
*
* Input: dirin: directory that has image files
* depth (use 32 for RGB)
* scale factor
* width (approx. width of output tiled image)
* background (0 for white, 1 for black)
* fileout: output tiled image file
*
* Note: this program is Unix only; it will not compile under cygwin.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "allheaders.h"
main(int argc,
char **argv)
{
char *dirin, *fileout, *fname, *fullname;
l_int32 depth, width, background, i, index, nfiles, n;
l_float32 scale;
SARRAY *safiles;
PIX *pix, *pixt, *pixd;
PIXA *pixa;
static char mainName[] = "maketile";
if (argc != 7)
exit(ERROR_INT(
"Syntax: maketile dirin depth scale width background fileout",
mainName, 1));
dirin = argv[1];
depth = atoi(argv[2]);
scale = atof(argv[3]);
width = atoi(argv[4]);
background = atoi(argv[5]);
fileout = argv[6];
/* capture the filenames in the input directory; ignore directories */
if ((safiles = getFilenamesInDirectory(dirin)) == NULL)
exit(ERROR_INT("safiles not made", mainName, 1));
/* capture images with the requisite depth */
nfiles = sarrayGetCount(safiles);
pixa = pixaCreate(nfiles);
for (i = 0, index = 0; i < nfiles; i++) {
fname = sarrayGetString(safiles, i, 0);
fullname = genPathname(dirin, fname);
pix = pixRead(fullname);
FREE((void *)fullname);
if (!pix)
continue;
if (pixGetDepth(pix) != depth) {
pixDestroy(&pix);
continue;
}
if (pixGetHeight(pix) > 5000) {
fprintf(stderr, "%s too tall\n", fname);
continue;
}
pixt = pixScale(pix, scale, scale);
pixaAddPix(pixa, pixt, L_INSERT);
pixDestroy(&pix);
/* fprintf(stderr, "%d..", i); */
}
fprintf(stderr, "\n");
/* tile them */
pixd = pixaDisplayTiled(pixa, width, background, 15);
if (depth < 8)
pixWrite(fileout, pixd, IFF_PNG);
else
pixWrite(fileout, pixd, IFF_JFIF_JPEG);
pixaDestroy(&pixa);
pixDestroy(&pixd);
sarrayDestroy(&safiles);
return 0;
}
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