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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.
*====================================================================*/
/*
* rotateorth_reg.c
*
* Regression test for all rotateorth functions
*/
#include <stdio.h>
#include <stdlib.h>
#include "allheaders.h"
#define BINARY_IMAGE "test1.png"
#define GRAYSCALE_IMAGE "test8.jpg"
#define FOUR_BPP_IMAGE "weasel4.8g.png"
#define COLORMAP_IMAGE "dreyfus8.png"
#define RGB_IMAGE "marge.jpg"
void rotateOrthTest(char *fname);
main(int argc,
char **argv)
{
static char mainName[] = "rotateorth_reg";
if (argc != 1)
exit(ERROR_INT(" Syntax: rotateorth_reg", mainName, 1));
fprintf(stderr, "Test binary image:\n");
rotateOrthTest(BINARY_IMAGE);
fprintf(stderr, "Test 4 bpp colormapped image:\n");
rotateOrthTest(FOUR_BPP_IMAGE);
fprintf(stderr, "Test grayscale image:\n");
rotateOrthTest(GRAYSCALE_IMAGE);
fprintf(stderr, "Test colormap image:\n");
rotateOrthTest(COLORMAP_IMAGE);
fprintf(stderr, "Test rgb image:\n");
rotateOrthTest(RGB_IMAGE);
return 0;
}
void
rotateOrthTest(char *fname)
{
l_int32 zero, count;
PIX *pixs, *pixt, *pixd;
PROCNAME("rotateOrthTest");
if ((pixs = pixRead(fname)) == NULL)
return ERROR_VOID("pixs not read", procName);
/* Test 4 successive 90 degree rotations */
pixt = pixRotate90(pixs, 1);
pixd = pixRotate90(pixt, 1);
pixDestroy(&pixt);
pixt = pixRotate90(pixd, 1);
pixDestroy(&pixd);
pixd = pixRotate90(pixt, 1);
pixDestroy(&pixt);
pixXor(pixd, pixd, pixs);
pixZero(pixd, &zero);
if (zero)
fprintf(stderr, "OK. Four 90-degree rotations gives I\n");
else {
pixCountPixels(pixd, &count, NULL);
fprintf(stderr, "Failure for four 90-degree rotations; count = %d\n",
count);
}
pixDestroy(&pixd);
/* Test 2 successive 180 degree rotations */
pixt = pixRotate180(NULL, pixs);
pixRotate180(pixt, pixt);
pixXor(pixt, pixt, pixs);
pixZero(pixt, &zero);
if (zero)
fprintf(stderr, "OK. Two 180-degree rotations gives I\n");
else {
pixCountPixels(pixt, &count, NULL);
fprintf(stderr, "Failure for two 180-degree rotations; count = %d\n",
count);
}
pixDestroy(&pixt);
/* Test 2 successive LR flips */
pixt = pixFlipLR(NULL, pixs);
pixFlipLR(pixt, pixt);
pixXor(pixt, pixt, pixs);
pixZero(pixt, &zero);
if (zero)
fprintf(stderr, "OK. Two LR flips gives I\n");
else {
pixCountPixels(pixt, &count, NULL);
fprintf(stderr, "Failure for two LR flips; count = %d\n",
count);
}
pixDestroy(&pixt);
/* Test 2 successive TB flips */
pixt = pixFlipTB(NULL, pixs);
pixFlipTB(pixt, pixt);
pixXor(pixt, pixt, pixs);
pixZero(pixt, &zero);
if (zero)
fprintf(stderr, "OK. Two TB flips gives I\n");
else {
pixCountPixels(pixt, &count, NULL);
fprintf(stderr, "Failure for two TB flips; count = %d\n",
count);
}
pixDestroy(&pixt);
pixDestroy(&pixs);
return;
}
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