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Diffstat (limited to 'leptonica/prog/boxa1_reg.c')
| -rw-r--r-- | leptonica/prog/boxa1_reg.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/leptonica/prog/boxa1_reg.c b/leptonica/prog/boxa1_reg.c new file mode 100644 index 00000000..6f29badb --- /dev/null +++ b/leptonica/prog/boxa1_reg.c @@ -0,0 +1,161 @@ +/*====================================================================* + - 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. + *====================================================================*/ + +/* + * boxa1_reg.c + * + * This carries out various operations on boxa, including + * region comparison, transforms and display. + */ + +#ifdef HAVE_CONFIG_H +#include <config_auto.h> +#endif /* HAVE_CONFIG_H */ + +#include "allheaders.h" + +static PIX *DisplayBoxa(BOXA *boxa); + +int main(int argc, + char **argv) +{ +l_uint8 *data1, *data2; +l_int32 same; +size_t size1, size2; +l_float32 diffarea, diffxor; +BOX *box; +BOXA *boxa1, *boxa2, *boxa3; +PIX *pix1; +PTA *pta; +L_REGPARAMS *rp; + + if (regTestSetup(argc, argv, &rp)) + return 1; + + lept_mkdir("lept/boxa"); + + /* Make a boxa and display its contents */ + boxa1 = boxaCreate(6); + box = boxCreate(60, 60, 40, 20); + boxaAddBox(boxa1, box, L_INSERT); + box = boxCreate(120, 50, 20, 50); + boxaAddBox(boxa1, box, L_INSERT); + box = boxCreate(50, 140, 46, 60); + boxaAddBox(boxa1, box, L_INSERT); + box = boxCreate(166, 130, 64, 28); + boxaAddBox(boxa1, box, L_INSERT); + box = boxCreate(64, 224, 44, 34); + boxaAddBox(boxa1, box, L_INSERT); + box = boxCreate(117, 206, 26, 74); + boxaAddBox(boxa1, box, L_INSERT); + pix1 = DisplayBoxa(boxa1); + regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 0 */ + pixDisplayWithTitle(pix1, 0, 0, NULL, rp->display); + pixDestroy(&pix1); + + boxaCompareRegions(boxa1, boxa1, 100, &same, &diffarea, &diffxor, NULL); + regTestCompareValues(rp, 1, same, 0.0); /* 1 */ + regTestCompareValues(rp, 0.0, diffarea, 0.0); /* 2 */ + regTestCompareValues(rp, 0.0, diffxor, 0.0); /* 3 */ + + boxa2 = boxaTransform(boxa1, -13, -13, 1.0, 1.0); + boxaCompareRegions(boxa1, boxa2, 10, &same, &diffarea, &diffxor, NULL); + regTestCompareValues(rp, 1, same, 0.0); /* 4 */ + regTestCompareValues(rp, 0.0, diffarea, 0.0); /* 5 */ + regTestCompareValues(rp, 0.0, diffxor, 0.0); /* 6 */ + boxaDestroy(&boxa2); + + pta = boxaExtractCorners(boxa1, L_UPPER_LEFT); + boxa2 = boxaShiftWithPta(boxa1, pta, 1); /* shift */ + boxa3 = boxaShiftWithPta(boxa2, pta, -1); /* inverse shift */ + boxaWriteMem(&data1, &size1, boxa1); + boxaWriteMem(&data2, &size2, boxa3); + regTestCompareStrings(rp, data1, size1, data2, size2); /* 7 */ + ptaDestroy(&pta); + boxaDestroy(&boxa2); + boxaDestroy(&boxa3); + lept_free(data1); + lept_free(data2); + + boxa2 = boxaReconcileEvenOddHeight(boxa1, L_ADJUST_TOP_AND_BOT, 6, + L_ADJUST_CHOOSE_MIN, 1.0, 0); + pix1 = DisplayBoxa(boxa2); + regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 8 */ + pixDisplayWithTitle(pix1, 200, 0, NULL, rp->display); + pixDestroy(&pix1); + + boxaCompareRegions(boxa1, boxa2, 10, &same, &diffarea, &diffxor, &pix1); + regTestCompareValues(rp, 1, same, 0.0); /* 9 */ + regTestCompareValues(rp, 0.053, diffarea, 0.002); /* 10 */ + regTestCompareValues(rp, 0.240, diffxor, 0.002); /* 11 */ + regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 12 */ + pixDisplayWithTitle(pix1, 400, 0, NULL, rp->display); + pixDestroy(&pix1); + boxaDestroy(&boxa1); + boxaDestroy(&boxa2); + + /* Test serialized boxa I/O to and from memory */ + data1 = l_binaryRead("boxa2.ba", &size1); + boxa1 = boxaReadMem(data1, size1); + boxaWriteMem(&data2, &size2, boxa1); + boxa2 = boxaReadMem(data2, size2); + boxaWrite("/tmp/lept/boxa/boxa1.ba", boxa1); + boxaWrite("/tmp/lept/boxa/boxa2.ba", boxa2); + filesAreIdentical("/tmp/lept/boxa/boxa1.ba", "/tmp/lept/boxa/boxa2.ba", + &same); + regTestCompareValues(rp, 1, same, 0.0); /* 13 */ + boxaDestroy(&boxa1); + boxaDestroy(&boxa2); + lept_free(data1); + lept_free(data2); + + return regTestCleanup(rp); +} + + +static PIX * +DisplayBoxa(BOXA *boxa) +{ +l_int32 w, h; +BOX *box; +PIX *pix1, *pix2, *pix3; +PIXA *pixa; + + pixa = pixaCreate(2); + boxaGetExtent(boxa, &w, &h, &box); + pix1 = pixCreate(w, h, 1); + pixMaskBoxa(pix1, pix1, boxa, L_SET_PIXELS); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixCreate(w, h, 32); + pixSetAll(pix2); + pixRenderBoxaArb(pix2, boxa, 2, 0, 255, 0); + pixRenderBoxArb(pix2, box, 3, 255, 0, 0); + pixaAddPix(pixa, pix2, L_INSERT); + pix3 = pixaDisplayTiledInRows(pixa, 32, 1000, 1.0, 0, 30, 2); + boxDestroy(&box); + pixaDestroy(&pixa); + return pix3; +} |