int main(int argc,
char **argv)
{
char *filein;
char *fileout = NULL;
l_int32 d, same;
PIX *pixs, *pixd, *pix1, *pix2, *pix3, *pix4;
static char mainName[] = "converttogray";
if (argc != 2 && argc != 3)
return ERROR_INT(" Syntax: converttogray filein [fileout]",
mainName, 1);
filein = argv[1];
if (argc == 3) fileout = argv[2];
if ((pixs = pixRead(filein)) == NULL)
return ERROR_INT("pixs not made", mainName, 1);
if (fileout) {
pixd = pixConvertRGBToGray(pixs, 0.33, 0.34, 0.33);
pixWrite(fileout, pixd, IFF_PNG);
pixDestroy(&pixs);
pixDestroy(&pixd);
return 0;
}
d = pixGetDepth(pixs);
if (d == 2) {
pix1 = pixConvert2To8(pixs, 0x00, 0x55, 0xaa, 0xff, TRUE);
pix2 = pixConvert2To8(pixs, 0x00, 0x55, 0xaa, 0xff, FALSE);
pixEqual(pix1, pix2, &same);
if (same)
fprintf(stderr, "images are the same\n");
else
fprintf(stderr, "images are different!\n");
pixWrite("/tmp/pix1.png", pix1, IFF_PNG);
pixWrite("/tmp/pix2.png", pix2, IFF_PNG);
pixDestroy(&pix1);
pixDestroy(&pix2);
pixSetColormap(pixs, NULL);
pix3 = pixConvert2To8(pixs, 0x00, 0x55, 0xaa, 0xff, TRUE);
pix4 = pixConvert2To8(pixs, 0x00, 0x55, 0xaa, 0xff, FALSE);
pixEqual(pix3, pix4, &same);
if (same)
fprintf(stderr, "images are the same\n");
else
fprintf(stderr, "images are different!\n");
pixWrite("/tmp/pix3.png", pix3, IFF_PNG);
pixWrite("/tmp/pix4.png", pix4, IFF_PNG);
pixDestroy(&pix3);
pixDestroy(&pix4);
} else if (d == 4) {
pix1 = pixConvert4To8(pixs, TRUE);
pix2 = pixConvert4To8(pixs, FALSE);
pixEqual(pix1, pix2, &same);
if (same)
fprintf(stderr, "images are the same\n");
else
fprintf(stderr, "images are different!\n");
pixWrite("/tmp/pix1.png", pix1, IFF_PNG);
pixWrite("/tmp/pix2.png", pix2, IFF_PNG);
pixDestroy(&pix1);
pixDestroy(&pix2);
pixSetColormap(pixs, NULL);
pix3 = pixConvert4To8(pixs, TRUE);
pix4 = pixConvert4To8(pixs, FALSE);
pixEqual(pix3, pix4, &same);
if (same)
fprintf(stderr, "images are the same\n");
else
fprintf(stderr, "images are different!\n");
pixWrite("/tmp/pix3.png", pix3, IFF_PNG);
pixWrite("/tmp/pix4.png", pix4, IFF_PNG);
pixDestroy(&pix3);
pixDestroy(&pix4);
} else {
L_INFO("only converts 2 and 4 bpp; d = %d\n", mainName, d);
}
pixDestroy(&pixs);
return 0;
}
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("/tmp/junkpixt1", pixt1, IFF_PNG);
pixWrite("/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("/tmp/junkpixt3", pixt3, IFF_PNG);
pixWrite("/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("/tmp/junkpixt1", pixt1, IFF_PNG);
pixWrite("/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("/tmp/junkpixt3", pixt3, IFF_PNG);
pixWrite("/tmp/junkpixt4", pixt4, IFF_PNG);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
}
#endif
pixDestroy(&pixs);
return 0;
}