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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.
*====================================================================*/
/*
* converttogray.c
*
*/
#include <stdio.h>
#include <stdlib.h>
#include "allheaders.h"
main(int argc,
char **argv)
{
char *filein, *fileout;
l_int32 d, same;
PIX *pixs, *pixd, *pixt0, *pixt1, *pixt2, *pixt3, *pixt4, *pixt5;
static char mainName[] = "converttogray";
if (argc != 2 && argc != 3)
exit(ERROR_INT(" Syntax: converttogray filein [fileout]",
mainName, 1));
filein = argv[1];
fileout = argv[2];
if ((pixs = pixRead(filein)) == NULL)
exit(ERROR_INT("pixs not made", mainName, 1));
#if 0
pixd = pixConvertRGBToGray(pixs, 0.33, 0.34, 0.33);
pixWrite(fileout, pixd, IFF_PNG);
pixDestroy(&pixd);
#endif
#if 1
d = pixGetDepth(pixs);
if (d == 2) {
pixt1 = pixConvert2To8(pixs, 0x00, 0x55, 0xaa, 0xff, TRUE);
pixt2 = pixConvert2To8(pixs, 0x00, 0x55, 0xaa, 0xff, FALSE);
pixEqual(pixt1, pixt2, &same);
if (same)
fprintf(stderr, "images are the same\n");
else
fprintf(stderr, "images are different!\n");
pixWrite("/usr/tmp/junkpixt1", pixt1, IFF_PNG);
pixWrite("/usr/tmp/junkpixt2", pixt2, IFF_PNG);
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixSetColormap(pixs, NULL);
pixt3 = pixConvert2To8(pixs, 0x00, 0x55, 0xaa, 0xff, TRUE);
pixt4 = pixConvert2To8(pixs, 0x00, 0x55, 0xaa, 0xff, FALSE);
pixEqual(pixt3, pixt4, &same);
if (same)
fprintf(stderr, "images are the same\n");
else
fprintf(stderr, "images are different!\n");
pixWrite("/usr/tmp/junkpixt3", pixt3, IFF_PNG);
pixWrite("/usr/tmp/junkpixt4", pixt4, IFF_PNG);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
}
else if (d == 4) {
pixt1 = pixConvert4To8(pixs, TRUE);
pixt2 = pixConvert4To8(pixs, FALSE);
pixEqual(pixt1, pixt2, &same);
if (same)
fprintf(stderr, "images are the same\n");
else
fprintf(stderr, "images are different!\n");
pixWrite("/usr/tmp/junkpixt1", pixt1, IFF_PNG);
pixWrite("/usr/tmp/junkpixt2", pixt2, IFF_PNG);
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixSetColormap(pixs, NULL);
pixt3 = pixConvert4To8(pixs, TRUE);
pixt4 = pixConvert4To8(pixs, FALSE);
pixEqual(pixt3, pixt4, &same);
if (same)
fprintf(stderr, "images are the same\n");
else
fprintf(stderr, "images are different!\n");
pixWrite("/usr/tmp/junkpixt3", pixt3, IFF_PNG);
pixWrite("/usr/tmp/junkpixt4", pixt4, IFF_PNG);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
}
#endif
pixDestroy(&pixs);
exit(0);
}
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