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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.
*====================================================================*/
/*
* dewarptest1.c
*
* This exercise functions in dewarp.c for dewarping based on lines
* of horizontal text. It also creates a 24-image pdf of steps
* in the process.
*/
#ifdef HAVE_CONFIG_H
#include <config_auto.h>
#endif /* HAVE_CONFIG_H */
#include "allheaders.h"
#define DO_QUAD 1
#define DO_CUBIC 0
#define DO_QUARTIC 0
/* Default LSF is quadratic on left and right edges.
* Set to 1 for linear LSF. */
#define LINEAR_FIT_ON_EDGES 0
l_int32 main(int argc,
char **argv)
{
L_DEWARP *dew1, *dew2;
L_DEWARPA *dewa;
PIX *pixs, *pixn, *pixg, *pixb, *pixd, *pixt1, *pixt2;
PIX *pixs2, *pixn2, *pixg2, *pixb2, *pixd2;
setLeptDebugOK(1);
lept_mkdir("lept/model");
lept_rmdir("lept/dewmod");
lept_mkdir("lept/dewmod");
/* pixs = pixRead("1555.007.jpg"); */
pixs = pixRead("cat.035.jpg");
/* pixs = pixRead("cat.010.jpg"); */
/* Normalize for varying background and binarize */
pixn = pixBackgroundNormSimple(pixs, NULL, NULL);
pixg = pixConvertRGBToGray(pixn, 0.5, 0.3, 0.2);
pixb = pixThresholdToBinary(pixg, 130);
/* Run the basic functions */
dewa = dewarpaCreate(2, 30, 1, 10, 30);
if (LINEAR_FIT_ON_EDGES)
dewarpaSetCurvatures(dewa, -1, -1, -1, 0, -1, -1);
dewarpaUseBothArrays(dewa, 1);
dew1 = dewarpCreate(pixb, 35);
dewarpaInsertDewarp(dewa, dew1);
dewarpBuildPageModel(dew1, "/tmp/lept/model/dewarp_model1.pdf");
dewarpaApplyDisparity(dewa, 35, pixg, 200, 0, 0, &pixd,
"/tmp/lept/model/dewarp_apply1.pdf");
/* Write out some of the files to be imaged */
lept_rmdir("lept/dewtest");
lept_mkdir("lept/dewtest");
pixWrite("/tmp/lept/dewtest/001.jpg", pixs, IFF_JFIF_JPEG);
pixWrite("/tmp/lept/dewtest/002.jpg", pixn, IFF_JFIF_JPEG);
pixWrite("/tmp/lept/dewtest/003.jpg", pixg, IFF_JFIF_JPEG);
pixWrite("/tmp/lept/dewtest/004.png", pixb, IFF_TIFF_G4);
pixWrite("/tmp/lept/dewtest/005.jpg", pixd, IFF_JFIF_JPEG);
pixt1 = pixRead("/tmp/lept/dewmod/0020.png");
pixWrite("/tmp/lept/dewtest/006.png", pixt1, IFF_PNG);
pixDestroy(&pixt1);
pixt1 = pixRead("/tmp/lept/dewmod/0030.png");
pixWrite("/tmp/lept/dewtest/007.png", pixt1, IFF_PNG);
pixDestroy(&pixt1);
pixt1 = pixRead("/tmp/lept/dewmod/0060.png");
pixWrite("/tmp/lept/dewtest/008.png", pixt1, IFF_PNG);
pixDestroy(&pixt1);
pixt1 = pixRead("/tmp/lept/dewmod/0070.png");
pixWrite("/tmp/lept/dewtest/009.png", pixt1, IFF_PNG);
pixDestroy(&pixt1);
pixt1 = pixRead("/tmp/lept/dewapply/002.png");
pixWrite("/tmp/lept/dewtest/010.png", pixt1, IFF_PNG);
pixDestroy(&pixt1);
pixt1 = pixRead("/tmp/lept/dewapply/003.png");
pixWrite("/tmp/lept/dewtest/011.png", pixt1, IFF_PNG);
pixt2 = pixThresholdToBinary(pixt1, 130);
pixWrite("/tmp/lept/dewtest/012.png", pixt2, IFF_TIFF_G4);
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixt1 = pixRead("/tmp/lept/dewmod/0041.png");
pixWrite("/tmp/lept/dewtest/013.png", pixt1, IFF_PNG);
pixDestroy(&pixt1);
pixt1 = pixRead("/tmp/lept/dewmod/0042.png");
pixWrite("/tmp/lept/dewtest/014.png", pixt1, IFF_PNG);
pixDestroy(&pixt1);
pixt1 = pixRead("/tmp/lept/dewmod/0051.png");
pixWrite("/tmp/lept/dewtest/015.png", pixt1, IFF_PNG);
pixDestroy(&pixt1);
pixt1 = pixRead("/tmp/lept/dewmod/0052.png");
pixWrite("/tmp/lept/dewtest/016.png", pixt1, IFF_PNG);
pixDestroy(&pixt1);
/* Normalize another image, that may not have enough textlines
* to build an accurate model */
/* pixs2 = pixRead("1555.003.jpg"); */
pixs2 = pixRead("cat.007.jpg");
/* pixs2 = pixRead("cat.014.jpg"); */
pixn2 = pixBackgroundNormSimple(pixs2, NULL, NULL);
pixg2 = pixConvertRGBToGray(pixn2, 0.5, 0.3, 0.2);
pixb2 = pixThresholdToBinary(pixg2, 130);
/* Apply the previous disparity model to this image */
dew2 = dewarpCreate(pixb2, 7);
dewarpaInsertDewarp(dewa, dew2);
dewarpaInsertRefModels(dewa, 0, 1);
dewarpaInfo(stderr, dewa);
dewarpaApplyDisparity(dewa, 7, pixg2, 200, 0, 0, &pixd2,
"/tmp/lept/model/dewarp_apply2.pdf");
dewarpaDestroy(&dewa);
/* Write out files for the second image */
pixWrite("/tmp/lept/dewtest/017.jpg", pixs2, IFF_JFIF_JPEG);
pixWrite("/tmp/lept/dewtest/018.jpg", pixg2, IFF_JFIF_JPEG);
pixWrite("/tmp/lept/dewtest/019.png", pixb2, IFF_TIFF_G4);
pixWrite("/tmp/lept/dewtest/020.jpg", pixd2, IFF_JFIF_JPEG);
pixt1 = pixRead("/tmp/lept/dewmod/0060.png");
pixWrite("/tmp/lept/dewtest/021.png", pixt1, IFF_PNG);
pixDestroy(&pixt1);
pixt1 = pixRead("/tmp/lept/dewapply/002.png");
pixWrite("/tmp/lept/dewtest/022.png", pixt1, IFF_PNG);
pixt2 = pixThresholdToBinary(pixt1, 130);
pixWrite("/tmp/lept/dewtest/023.png", pixt2, IFF_TIFF_G4);
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixt1 = pixRead("/tmp/lept/dewmod/0070.png");
pixWrite("/tmp/lept/dewtest/024.png", pixt1, IFF_PNG);
pixDestroy(&pixt1);
pixt1 = pixRead("/tmp/lept/dewapply/003.png");
pixWrite("/tmp/lept/dewtest/025.png", pixt1, IFF_PNG);
pixt2 = pixThresholdToBinary(pixt1, 130);
pixWrite("/tmp/lept/dewtest/026.png", pixt2, IFF_TIFF_G4);
pixDestroy(&pixt1);
pixDestroy(&pixt2);
/* Generate the big pdf file */
convertFilesToPdf("/tmp/lept/dewtest", NULL, 135, 1.0, 0, 0, "Dewarp Test",
"/tmp/lept/dewarptest1.pdf");
lept_stderr("pdf file made: /tmp/lept/model/dewarptest1.pdf\n");
pixDestroy(&pixs);
pixDestroy(&pixn);
pixDestroy(&pixg);
pixDestroy(&pixb);
pixDestroy(&pixd);
pixDestroy(&pixs2);
pixDestroy(&pixn2);
pixDestroy(&pixg2);
pixDestroy(&pixb2);
pixDestroy(&pixd2);
return 0;
}
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