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Add pixCropImage() option to aggressively remove side noise
* This is from the left and right sides, and is invoked in prog/croppdf by using a negative input paramater for edgeclean. * New prog/misctest2.c to have page cropping and cleaning examples, with two sample music notation images. Existing cropping and cleaning examples have been removed from prog/misctest1.c.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| /*====================================================================* | ||
| - 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. | ||
| *====================================================================*/ | ||
|
|
||
| /* | ||
| * misctest2.c | ||
| * * Page cropping with light filtering | ||
| * * Page cropping with removal of fg on left and right sides | ||
| * * Demonstrate image cleaning function | ||
| */ | ||
|
|
||
| #ifdef HAVE_CONFIG_H | ||
| #include <config_auto.h> | ||
| #endif /* HAVE_CONFIG_H */ | ||
|
|
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| #include "allheaders.h" | ||
|
|
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| int main(int argc, | ||
| char **argv) | ||
| { | ||
| PIX *pix1, *pix2, *pix3; | ||
| PIXA *pixa1; | ||
|
|
||
| setLeptDebugOK(1); | ||
| lept_mkdir("lept/misc"); | ||
|
|
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| /* Page cropping with light filtering */ | ||
| pix1 = pixRead("tel_3.tif"); | ||
| pix2 = pixCropImage(pix1, 30, 30, 4, 25, 25, 1.15, | ||
| "/tmp/lept/misc/crop_tel3.pdf", NULL); | ||
| pixDestroy(&pix1); | ||
| pixDestroy(&pix2); | ||
|
|
||
| /* Page cropping with removal of fg on left and right sides */ | ||
| pix1 = pixRead("boismort.1.tif"); | ||
| pix2 = pixCropImage(pix1, 50, 50, -1, 70, 70, 1.1, | ||
| "/tmp/lept/misc/crop_bois1.pdf", NULL); | ||
| pixDestroy(&pix1); | ||
| pixDestroy(&pix2); | ||
|
|
||
| /* Page cropping with removal of fg on left and right sides */ | ||
| pix1 = pixRead("boismort.15.tif"); | ||
| pix2 = pixCropImage(pix1, 50, 50, -1, 70, 70, 1.1, | ||
| "/tmp/lept/misc/crop_bois15.pdf", NULL); | ||
| pixDestroy(&pix1); | ||
| pixDestroy(&pix2); | ||
|
|
||
| /* Page cleaning */ | ||
| pixa1 = pixaCreate(3); | ||
| pix1 = pixRead("tel_3.tif"); | ||
| pix2 = pixRotate(pix1, 0.02, L_ROTATE_SAMPLING, L_BRING_IN_WHITE, 0, 0); | ||
| pix3 = pixCleanImage(pix2, 1, 0, 1, 0); | ||
| pixaAddPix(pixa1, pix3, L_INSERT); | ||
| pixDisplay(pix3, 800, 800); | ||
| pixDestroy(&pix1); | ||
| pixDestroy(&pix2); | ||
| pix1 = pixRead("w91frag.jpg"); | ||
| pixaAddPix(pixa1, pixScale(pix1, 2.5, 2.5), L_INSERT); | ||
| pix2 = pixRotate(pix1, 0.02, L_ROTATE_AREA_MAP, L_BRING_IN_WHITE, 0, 0); | ||
| pix3 = pixCleanImage(pix2, 1, 0, 1, 0); | ||
| pixaAddPix(pixa1, pixScale(pix3, 2.5, 2.5), L_INSERT); | ||
| pixDisplay(pix3, 1200, 800); | ||
| pixDestroy(&pix1); | ||
| pixDestroy(&pix2); | ||
| pixDestroy(&pix3); | ||
| lept_stderr("Writing /tmp/lept/misc/pageclean.pdf\n"); | ||
| pixaConvertToPdf(pixa1, 0, 1.0, L_DEFAULT_ENCODE, 50, NULL, | ||
| "/tmp/lept/misc/pageclean.pdf"); | ||
| pixaDestroy(&pixa1); | ||
|
|
||
| return 0; | ||
| } |
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