third-party/leptonica/prog/bincompare.c
/*====================================================================*
- Copyright (C) 2001 Leptonica. All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
- 1. Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- 2. Redistributions in binary form must reproduce the above
- copyright notice, this list of conditions and the following
- disclaimer in the documentation and/or other materials
- provided with the distribution.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANY
- CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*====================================================================*/
/*
* bincompare.c
*
* Bitwise comparison of two binary images
*/
#include "allheaders.h"
/* set one of these to 1 */
#define XOR 1
#define SUBTRACT_1_FROM_2 0
#define SUBTRACT_2_FROM_1 0
int main(int argc,
char **argv)
{
l_int32 w, h, d, n;
char *filein1, *filein2, *fileout;
PIX *pixs1, *pixs2;
static char mainName[] = "bincompare";
if (argc != 4)
return ERROR_INT(" Syntax: bincompare filein1 filein2 fileout",
mainName, 1);
filein1 = argv[1];
filein2 = argv[2];
fileout = argv[3];
if ((pixs1 = pixRead(filein1)) == NULL)
return ERROR_INT("pixs1 not made", mainName, 1);
if ((pixs2 = pixRead(filein2)) == NULL)
return ERROR_INT("pixs2 not made", mainName, 1);
pixGetDimensions(pixs1, &w, &h, &d);
if (d != 1)
return ERROR_INT("pixs1 not binary", mainName, 1);
pixCountPixels(pixs1, &n, NULL);
fprintf(stderr, "Number of fg pixels in file1 = %d\n", n);
pixCountPixels(pixs2, &n, NULL);
fprintf(stderr, "Number of fg pixels in file2 = %d\n", n);
#if XOR
fprintf(stderr, "xor: 1 ^ 2\n");
pixRasterop(pixs1, 0, 0, w, h, PIX_SRC ^ PIX_DST, pixs2, 0, 0);
pixCountPixels(pixs1, &n, NULL);
fprintf(stderr, "Number of fg pixels in XOR = %d\n", n);
pixWrite(fileout, pixs1, IFF_PNG);
#elif SUBTRACT_1_FROM_2
fprintf(stderr, "subtract: 2 - 1\n");
pixRasterop(pixs1, 0, 0, w, h, PIX_SRC & PIX_NOT(PIX_DST), pixs2, 0, 0);
pixCountPixels(pixs1, &n, NULL);
fprintf(stderr, "Number of fg pixels in 2 - 1 = %d\n", n);
pixWrite(fileout, pixs1, IFF_PNG);
#elif SUBTRACT_2_FROM_1
fprintf(stderr, "subtract: 1 - 2\n");
pixRasterop(pixs1, 0, 0, w, h, PIX_DST & PIX_NOT(PIX_SRC), pixs2, 0, 0);
pixCountPixels(pixs1, &n, NULL);
fprintf(stderr, "Number of fg pixels in 1 - 2 = %d\n", n);
pixWrite(fileout, pixs1, IFF_PNG);
#else
fprintf(stderr, "no comparison selected\n");
#endif
return 0;
}