graymorph2_reg.c

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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.
 *====================================================================*/

/*
 * graymorph2_reg.c
 *
 *   Compares graymorph results with special (3x1, 1x3, 3x3) cases
 *   against the general case.  Require exact equality.
 */

#include "allheaders.h"

main(int    argc,
     char **argv)
{
PIX          *pixs, *pixt1, *pixt2, *pixd;
PIXA         *pixa;
L_REGPARAMS  *rp;

    if (regTestSetup(argc, argv, &rp))
        return 1;

    pixs = pixRead("test8.jpg");

        /* Dilation */
    pixa = pixaCreate(0);
    pixSaveTiled(pixs, pixa, 1, 1, 20, 8);
    pixt1 = pixDilateGray3(pixs, 3, 1);
    pixSaveTiled(pixt1, pixa, 1, 1, 20, 8);
    pixt2 = pixDilateGray(pixs, 3, 1);
    pixSaveTiled(pixt2, pixa, 1, 0, 20, 8);
    regTestComparePix(rp, pixt1, pixt2);  /* 0 */
    pixDestroy(&pixt1);
    pixDestroy(&pixt2);

    pixt1 = pixDilateGray3(pixs, 1, 3);
    pixSaveTiled(pixt1, pixa, 1, 1, 20, 8);
    pixt2 = pixDilateGray(pixs, 1, 3);
    pixSaveTiled(pixt2, pixa, 1, 0, 20, 8);
    regTestComparePix(rp, pixt1, pixt2);  /* 1 */
    pixDestroy(&pixt1);
    pixDestroy(&pixt2);

    pixt1 = pixDilateGray3(pixs, 3, 3);
    pixSaveTiled(pixt1, pixa, 1, 1, 20, 8);
    pixt2 = pixDilateGray(pixs, 3, 3);
    pixSaveTiled(pixt2, pixa, 1, 0, 20, 8);
    regTestComparePix(rp, pixt1, pixt2);  /* 2 */
    pixDestroy(&pixt1);
    pixDestroy(&pixt2);

    pixd = pixaDisplay(pixa, 0, 0);
    pixDisplayWithTitle(pixd, 0, 100, "Dilation", rp->display);
    pixDestroy(&pixd);
    pixaDestroy(&pixa);

        /* Erosion */
    pixa = pixaCreate(0);
    pixSaveTiled(pixs, pixa, 1, 1, 20, 8);
    pixt1 = pixErodeGray3(pixs, 3, 1);
    pixSaveTiled(pixt1, pixa, 1, 1, 20, 8);
    pixt2 = pixErodeGray(pixs, 3, 1);
    pixSaveTiled(pixt2, pixa, 1, 0, 20, 8);
    regTestComparePix(rp, pixt1, pixt2);  /* 3 */
    pixDestroy(&pixt1);
    pixDestroy(&pixt2);

    pixt1 = pixErodeGray3(pixs, 1, 3);
    pixSaveTiled(pixt1, pixa, 1, 1, 20, 8);
    pixt2 = pixErodeGray(pixs, 1, 3);
    pixSaveTiled(pixt2, pixa, 1, 0, 20, 8);
    regTestComparePix(rp, pixt1, pixt2);  /* 4 */
    pixDestroy(&pixt1);
    pixDestroy(&pixt2);

    pixt1 = pixErodeGray3(pixs, 3, 3);
    pixSaveTiled(pixt1, pixa, 1, 1, 20, 8);
    pixt2 = pixErodeGray(pixs, 3, 3);
    pixSaveTiled(pixt2, pixa, 1, 0, 20, 8);
    regTestComparePix(rp, pixt1, pixt2);  /* 5 */
    pixDestroy(&pixt1);
    pixDestroy(&pixt2);

    pixd = pixaDisplay(pixa, 0, 0);
    pixDisplayWithTitle(pixd, 250, 100, "Erosion", rp->display);
    pixDestroy(&pixd);
    pixaDestroy(&pixa);

        /* Opening */
    pixa = pixaCreate(0);
    pixSaveTiled(pixs, pixa, 1, 1, 20, 8);
    pixt1 = pixOpenGray3(pixs, 3, 1);
    pixSaveTiled(pixt1, pixa, 1, 1, 20, 8);
    pixt2 = pixOpenGray(pixs, 3, 1);
    pixSaveTiled(pixt2, pixa, 1, 0, 20, 8);
    regTestComparePix(rp, pixt1, pixt2);  /* 6 */
    pixDestroy(&pixt1);
    pixDestroy(&pixt2);

    pixt1 = pixOpenGray3(pixs, 1, 3);
    pixSaveTiled(pixt1, pixa, 1, 1, 20, 8);
    pixt2 = pixOpenGray(pixs, 1, 3);
    pixSaveTiled(pixt2, pixa, 1, 0, 20, 8);
    regTestComparePix(rp, pixt1, pixt2);  /* 7 */
    pixDestroy(&pixt1);
    pixDestroy(&pixt2);

    pixt1 = pixOpenGray3(pixs, 3, 3);
    pixSaveTiled(pixt1, pixa, 1, 1, 20, 8);
    pixt2 = pixOpenGray(pixs, 3, 3);
    pixSaveTiled(pixt2, pixa, 1, 0, 20, 8);
    regTestComparePix(rp, pixt1, pixt2);  /* 8 */
    pixDestroy(&pixt1);
    pixDestroy(&pixt2);

    pixd = pixaDisplay(pixa, 0, 0);
    pixDisplayWithTitle(pixd, 500, 100, "Opening", rp->display);
    pixDestroy(&pixd);
    pixaDestroy(&pixa);

        /* Closing */
    pixa = pixaCreate(0);
    pixSaveTiled(pixs, pixa, 1, 1, 20, 8);
    pixt1 = pixCloseGray3(pixs, 3, 1);
    pixSaveTiled(pixt1, pixa, 1, 1, 20, 8);
    pixt2 = pixCloseGray(pixs, 3, 1);
    pixSaveTiled(pixt2, pixa, 1, 0, 20, 8);
    regTestComparePix(rp, pixt1, pixt2);  /* 9 */
    pixDestroy(&pixt1);
    pixDestroy(&pixt2);

    pixt1 = pixCloseGray3(pixs, 1, 3);
    pixSaveTiled(pixt1, pixa, 1, 1, 20, 8);
    pixt2 = pixCloseGray(pixs, 1, 3);
    pixSaveTiled(pixt2, pixa, 1, 0, 20, 8);
    regTestComparePix(rp, pixt1, pixt2);  /* 10 */
    pixDestroy(&pixt1);
    pixDestroy(&pixt2);

    pixt1 = pixCloseGray3(pixs, 3, 3);
    pixSaveTiled(pixt1, pixa, 1, 1, 20, 8);
    pixt2 = pixCloseGray(pixs, 3, 3);
    pixSaveTiled(pixt2, pixa, 1, 0, 20, 8);
    regTestComparePix(rp, pixt1, pixt2);  /* 11 */
    pixDestroy(&pixt1);
    pixDestroy(&pixt2);

    pixd = pixaDisplay(pixa, 0, 0);
    pixDisplayWithTitle(pixd, 750, 100, "Closing", rp->display);
    pixDestroy(&pixd);
    pixaDestroy(&pixa);

    regTestCleanup(rp);
    pixDestroy(&pixs);
    return 0;
}