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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.
*====================================================================*/
/*
* fmorphauto_reg.c
*
* Basic regression test for erosion & dilation: rasterops & dwa.
*
* Tests erosion and dilation from 58 structuring elements
* by comparing the full image rasterop results with the
* automatically generated dwa results.
*
* Results must be identical for all operations.
*/
#include <stdio.h>
#include <stdlib.h>
#include "allheaders.h"
/* defined in morph.c */
extern l_int32 MORPH_BC;
main(int argc,
char **argv)
{
l_int32 i, nsels, same, xorcount;
char *filein, *selname;
PIX *pixs, *pixs1, *pixt1, *pixt2, *pixt3, *pixt4;
SEL *sel;
SELA *sela;
static char mainName[] = "fmorphauto_reg";
if (argc != 2)
exit(ERROR_INT(" Syntax: fmorphauto_reg filein", mainName, 1));
filein = argv[1];
if ((pixs = pixRead(filein)) == NULL)
exit(ERROR_INT("pix not made", mainName, 1));
sela = selaAddBasic(NULL);
nsels = selaGetCount(sela);
for (i = 0; i < nsels; i++)
{
sel = selaGetSel(sela, i);
selname = selGetName(sel);
/* --------- dilation ----------*/
pixt1 = pixDilate(NULL, pixs, sel);
pixs1 = pixAddBorder(pixs, 32, 0);
pixt2 = pixFMorphopGen_1(NULL, pixs1, L_MORPH_DILATE, selname);
pixt3 = pixRemoveBorder(pixt2, 32);
pixt4 = pixXor(NULL, pixt1, pixt3);
pixZero(pixt4, &same);
if (same == 1) {
fprintf(stderr, "dilations are identical for sel %d (%s)\n",
i, selname);
}
else {
fprintf(stderr, "dilations differ for sel %d (%s)\n", i, selname);
pixCountPixels(pixt4, &xorcount, NULL);
fprintf(stderr, "Number of pixels in XOR: %d\n", xorcount);
}
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
pixDestroy(&pixs1);
/* --------- erosion with asymmetric b.c ----------*/
resetMorphBoundaryCondition(ASYMMETRIC_MORPH_BC);
fprintf(stderr, "MORPH_BC = %d ... ", MORPH_BC);
pixt1 = pixErode(NULL, pixs, sel);
if (MORPH_BC == ASYMMETRIC_MORPH_BC)
pixs1 = pixAddBorder(pixs, 32, 0); /* OFF border pixels */
else
pixs1 = pixAddBorder(pixs, 32, 1); /* ON border pixels */
pixt2 = pixFMorphopGen_1(NULL, pixs1, L_MORPH_ERODE, selname);
pixt3 = pixRemoveBorder(pixt2, 32);
pixt4 = pixXor(NULL, pixt1, pixt3);
pixZero(pixt4, &same);
if (same == 1) {
fprintf(stderr, "erosions are identical for sel %d (%s)\n",
i, selname);
}
else {
fprintf(stderr, "erosions differ for sel %d (%s)\n", i, selname);
pixCountPixels(pixt4, &xorcount, NULL);
fprintf(stderr, "Number of pixels in XOR: %d\n", xorcount);
}
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
pixDestroy(&pixs1);
/* --------- erosion with symmetric b.c ----------*/
resetMorphBoundaryCondition(SYMMETRIC_MORPH_BC);
fprintf(stderr, "MORPH_BC = %d ... ", MORPH_BC);
pixt1 = pixErode(NULL, pixs, sel);
if (MORPH_BC == ASYMMETRIC_MORPH_BC)
pixs1 = pixAddBorder(pixs, 32, 0); /* OFF border pixels */
else
pixs1 = pixAddBorder(pixs, 32, 1); /* ON border pixels */
pixt2 = pixFMorphopGen_1(NULL, pixs1, L_MORPH_ERODE, selname);
pixt3 = pixRemoveBorder(pixt2, 32);
pixt4 = pixXor(NULL, pixt1, pixt3);
pixZero(pixt4, &same);
if (same == 1) {
fprintf(stderr, "erosions are identical for sel %d (%s)\n",
i, selname);
}
else {
fprintf(stderr, "erosions differ for sel %d (%s)\n", i, selname);
pixCountPixels(pixt4, &xorcount, NULL);
fprintf(stderr, "Number of pixels in XOR: %d\n", xorcount);
}
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
pixDestroy(&pixs1);
}
exit(0);
}
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