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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.
*====================================================================*/
/*
* recogtest2.c
*
* Test bootstrap recognizer (BSR) to train a book-adapted
* recognizer (BAR), starting with unlabeled bitmaps from the book.
*
* Several BSRs are used.
* The BAR images are taken from recog/sets/train*.pa. We really
* know their classes, but pretend we don't, by erasing the labels.
*/
#ifdef HAVE_CONFIG_H
#include <config_auto.h>
#endif /* HAVE_CONFIG_H */
#include "string.h"
#include "allheaders.h"
/* Sets for training using boot recognizers */
static char trainset1[] = "recog/sets/train04.pa"; /* partial set */
static char trainset2[] = "recog/sets/train05.pa"; /* full set */
/* Use scanned images or width-normalized lines */
#if 1
static const l_int32 linew = 0; /* use scanned bitmaps */
#else
static const l_int32 linew = 5; /* use generated lines */
#endif
l_int32 main(int argc,
char **argv)
{
char *fname;
l_int32 i;
BOXA *boxa1;
BOXAA *baa;
NUMAA *naa;
PIX *pix1, *pix2, *pix3;
PIXA *pixa1, *pixa2, *pixa3;
L_RECOG *recogboot, *recog1;
SARRAY *sa;
if (argc != 1) {
lept_stderr(" Syntax: recogtest2\n");
return 1;
}
setLeptDebugOK(1);
lept_mkdir("lept/recog");
/* Files with 'unlabeled' templates from book */
sa = sarrayCreate(2);
sarrayAddString(sa, trainset1, L_COPY);
sarrayAddString(sa, trainset2, L_COPY);
/* ----------------------------------------------------------- */
/* Do operations with a simple bootstrap recognizer */
/* ----------------------------------------------------------- */
/* Generate a BSR (boot-strap recog), and show the unscaled
* and scaled versions of the templates */
pixa1 = (PIXA *)l_bootnum_gen1(); /* from recog/digits/bootnum1.pa */
recogboot = recogCreateFromPixa(pixa1, 0, 40, linew, 128, 1);
recogWrite("/tmp/lept/recog/boot1.rec", recogboot);
recogShowContent(stderr, recogboot, 1, 1);
pixaDestroy(&pixa1);
/* Generate a BAR (book-adapted recog) for a set of images from
* one book. Select a set of digit images. These happen to
* be labeled, so we clear the text field from each pix before
* running it through the boot recognizer. */
for (i = 0; i < 2; i++) {
fname = sarrayGetString(sa, i, L_NOCOPY);
pixa2 = pixaRead(fname);
pixaSetText(pixa2, NULL, NULL);
/* Train a new recognizer from the boot and unlabeled samples */
pixa3 = recogTrainFromBoot(recogboot, pixa2, 0.65, 128, 1);
recog1 = recogCreateFromPixa(pixa3, 0, 40, linew, 128, 1);
recogShowContent(stderr, recog1, 2, 1);
if (i == 0)
recogWrite("/tmp/lept/recog/recog1.rec", recog1);
else /* i == 1 */
recogWrite("/tmp/lept/recog/recog2.rec", recog1);
pixaDestroy(&pixa2);
pixaDestroy(&pixa3);
recogDestroy(&recog1);
}
recogDestroy(&recogboot);
/* ----------------------------------------------------------- */
/* Do operations with a larger bootstrap recognizer */
/* ----------------------------------------------------------- */
/* Generate the boot recog, and show the unscaled and scaled
* versions of the templates */
recogboot = recogMakeBootDigitRecog(0, 40, linew, 1, 1);
recogWrite("/tmp/lept/recog/boot2.rec", recogboot);
recogShowContent(stderr, recogboot, 3, 1);
/* Generate a BAR for a set of images from one book.
* Select a set of digit images and erase the text field. */
for (i = 0; i < 2; i++) {
fname = sarrayGetString(sa, i, L_NOCOPY);
pixa2 = pixaRead(fname);
pixaSetText(pixa2, NULL, NULL);
/* Train a new recognizer from the boot and unlabeled samples */
pixa3 = recogTrainFromBoot(recogboot, pixa2, 0.65, 128, 1);
recog1 = recogCreateFromPixa(pixa3, 0, 40, linew, 128, 1);
recogShowContent(stderr, recog1, 4, 1);
if (i == 0)
recogWrite("/tmp/lept/recog/recog3.rec", recog1);
else if (i == 1)
recogWrite("/tmp/lept/recog/recog4.rec", recog1);
pixaDestroy(&pixa2);
pixaDestroy(&pixa3);
recogDestroy(&recog1);
}
recogDestroy(&recogboot);
sarrayDestroy(&sa);
#if 0
recogShowMatchesInRange(recog, recog->pixa_tr, 0.0, 1.0, 1);
recogShowContent(stderr, recog, 1);
/* Now use minscore = 0.75 to remove the outliers in the BAR,
* and show what is left. */
lept_stderr("initial size: %d\n", recog->num_samples);
pix1 = pix2 = NULL;
recogRemoveOutliers1(&recog, 0.75, 5, 3, &pix1, &pix2);
pixDisplay(pix1, 500, 0);
pixDisplay(pix2, 500, 500);
pixDestroy(&pix1);
pixDestroy(&pix2);
lept_stderr("final size: %d\n", recog->num_samples);
recogDebugAverages(recog, 1);
recogShowContent(stderr, recog, 1);
recogShowMatchesInRange(recog, recog->pixa_tr, 0.75, 1.0, 1);
pixWrite("/tmp/lept/recog/range.png", recog->pixdb_range, IFF_PNG);
#endif
/* ----------------------------------------------------------- */
/* Show operation of the default bootstrap recognizer */
/* ----------------------------------------------------------- */
recog1 = recogMakeBootDigitRecog(0, 40, 0, 1, 0);
pix1 = pixRead("test-87220.59.png");
recogIdentifyMultiple(recog1, pix1, 0, 1, &boxa1, NULL, NULL, 0);
sa = recogExtractNumbers(recog1, boxa1, 0.75, -1, &baa, &naa);
pixa1 = showExtractNumbers(pix1, sa, baa, naa, &pix3);
pix2 = pixaDisplayTiledInRows(pixa1, 32, 600, 1.0, 0, 20, 2);
pixDisplay(pix2, 0, 1000);
pixDisplay(pix3, 600, 1000);
pixWrite("/tmp/lept/recog/extract.png", pix3, IFF_PNG);
pixDestroy(&pix1);
pixDestroy(&pix2);
pixDestroy(&pix3);
pixaDestroy(&pixa1);
sarrayDestroy(&sa);
boxaDestroy(&boxa1);
boxaaDestroy(&baa);
numaaDestroy(&naa);
recogDestroy(&recog1);
return 0;
}
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