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/*====================================================================*
- 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.
*====================================================================*/
/*
* italic_reg.c
*
* This demonstrates binary reconstruction for finding italic text.
* It also tests debug output of word masking.
*/
#ifdef HAVE_CONFIG_H
#include <config_auto.h>
#endif /* HAVE_CONFIG_H */
#include "allheaders.h"
int main(int argc,
char **argv)
{
char opstring[32];
l_int32 size;
BOXA *boxa1, *boxa2, *boxa3, *boxa4;
PIX *pixs, *pixm, *pix1;
PIXA *pixadb;
L_REGPARAMS *rp;
#if !defined(HAVE_LIBPNG)
L_ERROR("This test requires libpng to run.\n", "italic_reg");
exit(77);
#endif
if (regTestSetup(argc, argv, &rp))
return 1;
lept_mkdir("lept/ital");
pixs = pixRead("italic.png");
/* Basic functionality with debug flag */
pixItalicWords(pixs, NULL, NULL, &boxa1, 1);
boxaWrite("/tmp/lept/ital/ital1.ba", boxa1);
regTestCheckFile(rp, "/tmp/lept/ital/ital1.ba"); /* 0 */
regTestCheckFile(rp, "/tmp/lept/ital/ital.3.pdf"); /* 1 */
pix1 = pixRead("/tmp/lept/ital/ital.3.png");
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 2 */
pixDisplayWithTitle(pix1, 0, 0, "Intermediate steps", rp->display);
pixDestroy(&pix1);
pix1 = pixRead("/tmp/lept/ital/runhisto.png");
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 3 */
pixDisplayWithTitle(pix1, 400, 0, "Histogram of white runs", rp->display);
pixDestroy(&pix1);
/* Generate word mask */
pixadb = pixaCreate(5);
pixWordMaskByDilation(pixs, NULL, &size, pixadb);
l_pdfSetDateAndVersion(0);
pixaConvertToPdf(pixadb, 100, 1.0, L_FLATE_ENCODE, 0, "Word Mask",
"/tmp/lept/ital/wordmask.pdf");
regTestCheckFile(rp, "/tmp/lept/ital/wordmask.pdf"); /* 4 */
pix1 = pixaDisplayTiledInColumns(pixadb, 1, 1.0, 25, 2);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 5 */
pixDisplayWithTitle(pix1, 1400, 0, "Intermediate mask step", rp->display);
pixDestroy(&pix1);
pixaDestroy(&pixadb);
L_INFO("dilation size = %d\n", rp->testname, size);
snprintf(opstring, sizeof(opstring), "d1.5 + c%d.1", size);
pixm = pixMorphSequence(pixs, opstring, 0);
regTestWritePixAndCheck(rp, pixm, IFF_PNG); /* 6 */
pixDisplayWithTitle(pixm, 400, 550, "Word mask", rp->display);
/* Re-run italic finder using the word mask */
pixItalicWords(pixs, NULL, pixm, &boxa2, 1);
boxaWrite("/tmp/lept/ital/ital2.ba", boxa2);
regTestCheckFile(rp, "/tmp/lept/ital/ital2.ba"); /* 7 */
/* Re-run italic finder using word mask bounding boxes */
boxa3 = pixConnComp(pixm, NULL, 8);
pixItalicWords(pixs, boxa3, NULL, &boxa4, 1);
boxaWrite("/tmp/lept/ital/ital3.ba", boxa3);
regTestCheckFile(rp, "/tmp/lept/ital/ital3.ba"); /* 8 */
boxaWrite("/tmp/lept/ital/ital4.ba", boxa4);
regTestCheckFile(rp, "/tmp/lept/ital/ital4.ba"); /* 9 */
regTestCompareFiles(rp, 7, 9); /* 10 */
boxaDestroy(&boxa1);
boxaDestroy(&boxa2);
boxaDestroy(&boxa3);
boxaDestroy(&boxa4);
pixDestroy(&pixs);
pixDestroy(&pixm);
return regTestCleanup(rp);
}
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