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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.
*====================================================================*/
/*
* flipdetect_reg.c
*
* flipdetect_reg
*
* - Tests the high-level text orientation interface
* - Tests 90 degree orientation of text and whether the text is
* mirror reversed.
* - Shows the typical 'confidence' outputs from functions in flipdetect.c.
*/
#ifdef HAVE_CONFIG_H
#include <config_auto.h>
#endif /* HAVE_CONFIG_H */
#include "allheaders.h"
int main(int argc,
char **argv)
{
l_int32 i, orient, rotation;
l_float32 upconf, leftconf, conf;
PIX *pix, *pixs, *pix1, *pix2;
PIXA *pixa;
L_REGPARAMS *rp;
if (regTestSetup(argc, argv, &rp))
return 1;
pix = pixRead("feyn.tif");
pixs = pixScale(pix, 0.5, 0.5);
pixDestroy(&pix);
/* Test high-level interface */
lept_stderr("\nTest high-level detection/rotation\n");
pix1 = pixRotateOrth(pixs, 3);
pix2 = pixOrientCorrect(pix1, 0.0, 0.0, &upconf, &leftconf,
&rotation, 0);
if (rp->display)
lept_stderr("upconf = %7.3f, leftconf = %7.3f, rotation = %d\n",
upconf, leftconf, rotation);
regTestCompareValues(rp, upconf, 2.543, 0.1); /* 0 */
regTestCompareValues(rp, leftconf, 15.431, 0.1); /* 1 */
regTestCompareValues(rp, rotation, 90, 0.0); /* 2 */
regTestComparePix(rp, pixs, pix2); /* 3 */
pixDestroy(&pix1);
pixDestroy(&pix2);
/* Test orientation detection */
pixa = pixaCreate(4);
pix1 = pixCopy(NULL, pixs);
lept_stderr("\nTest orient detection for 4 orientations\n");
pixOrientDetect(pix1, &upconf, &leftconf, 0, 0);
makeOrientDecision(upconf, leftconf, 0, 0, &orient, 1);
regTestCompareValues(rp, upconf, 15.431, 0.1); /* 4 */
regTestCompareValues(rp, orient, 1, 0.0); /* 5 */
pixaAddPix(pixa, pix1, L_INSERT);
pix2 = pixRotate90(pix1, 1);
pix1 = pix2;
pixOrientDetect(pix1, &upconf, &leftconf, 0, 0);
makeOrientDecision(upconf, leftconf, 0, 0, &orient, 1);
regTestCompareValues(rp, leftconf, -15.702, 0.1); /* 6 */
regTestCompareValues(rp, orient, 4, 0.0); /* 7 */
pixaAddPix(pixa, pix1, L_INSERT);
pix2 = pixRotate90(pix1, 1);
pix1 = pix2;
pixOrientDetect(pix1, &upconf, &leftconf, 0, 0);
makeOrientDecision(upconf, leftconf, 0, 0, &orient, 1);
regTestCompareValues(rp, upconf, -15.702, 0.1); /* 8 */
regTestCompareValues(rp, orient, 3, 0.0); /* 9 */
pixaAddPix(pixa, pix1, L_INSERT);
pix2 = pixRotate90(pix1, 1);
pix1 = pix2;
pixOrientDetect(pix1, &upconf, &leftconf, 0, 0);
makeOrientDecision(upconf, leftconf, 0, 0, &orient, 1);
regTestCompareValues(rp, leftconf, 15.431, 0.1); /* 10 */
regTestCompareValues(rp, orient, 2, 0.0); /* 11 */
pixaAddPix(pixa, pix1, L_INSERT);
pix2 = pixaDisplayTiledInColumns(pixa, 2, 0.25, 20, 2);
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 12 */
pixDisplayWithTitle(pix2, 100, 100, NULL, rp->display);
pixDestroy(&pix2);
pixaDestroy(&pixa);
lept_stderr("\nTest mirror reverse detection\n");
pixMirrorDetect(pixs, &conf, 0, rp->display);
lept_stderr("conf = %5.3f; not mirror reversed\n", conf);
regTestCompareValues(rp, conf, 4.128, 0.1); /* 13 */
pixDestroy(&pixs);
return regTestCleanup(rp);
}
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