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Diffstat (limited to 'leptonica/prog/shear1_reg.c')
| -rw-r--r-- | leptonica/prog/shear1_reg.c | 283 |
1 files changed, 283 insertions, 0 deletions
diff --git a/leptonica/prog/shear1_reg.c b/leptonica/prog/shear1_reg.c new file mode 100644 index 00000000..ec319923 --- /dev/null +++ b/leptonica/prog/shear1_reg.c @@ -0,0 +1,283 @@ +/*====================================================================* + - 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. + *====================================================================*/ + +/* + * shear1_reg.c + * + * Regression test for shear, both IP and to new pix. + */ + +#ifdef HAVE_CONFIG_H +#include <config_auto.h> +#endif /* HAVE_CONFIG_H */ + +#include "allheaders.h" + +#define BINARY_IMAGE "test1.png" +#define TWO_BPP_IMAGE "weasel2.4c.png" +#define FOUR_BPP_IMAGE1 "weasel4.11c.png" +#define FOUR_BPP_IMAGE2 "weasel4.16g.png" +#define EIGHT_BPP_IMAGE "test8.jpg" +#define EIGHT_BPP_CMAP_IMAGE1 "dreyfus8.png" +#define EIGHT_BPP_CMAP_IMAGE2 "test24.jpg" +#define RGB_IMAGE "marge.jpg" + +static PIX *shearTest1(PIX *pixs, l_float32 scale); +static PIX *shearTest2(PIX *pixs, L_REGPARAMS *rp); + +static const l_float32 ANGLE1 = 3.14159265 / 12.; + +l_int32 main(int argc, + char **argv) +{ +l_int32 index; +PIX *pixs, *pix1, *pixc, *pixd; +PIXCMAP *cmap; +L_REGPARAMS *rp; + + if (regTestSetup(argc, argv, &rp)) + return 1; + + lept_stderr("Test binary image:\n"); + pixs = pixRead(BINARY_IMAGE); + pixd = shearTest1(pixs, 1.0); + regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 0 */ + pixDisplayWithTitle(pixd, 100, 100, NULL, rp->display); + pixDestroy(&pixs); + pixDestroy(&pixd); + + /* We change the black to dark red so that we can see + * that the IP shear does brings in that color. It + * can't bring in black because the cmap is filled. */ + lept_stderr("Test 2 bpp cmapped image with filled cmap:\n"); + pixs = pixRead(TWO_BPP_IMAGE); + cmap = pixGetColormap(pixs); + pixcmapGetIndex(cmap, 40, 44, 40, &index); + pixcmapResetColor(cmap, index, 100, 0, 0); + pixd = shearTest1(pixs, 1.0); + regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 1 */ + pixDisplayWithTitle(pixd, 100, 100, NULL, rp->display); + pixDestroy(&pixs); + pixDestroy(&pixd); + + lept_stderr("Test 4 bpp cmapped image with unfilled cmap:\n"); + pixs = pixRead(FOUR_BPP_IMAGE1); + pixd = shearTest1(pixs, 1.0); + regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 2 */ + pixDisplayWithTitle(pixd, 100, 100, NULL, rp->display); + pixDestroy(&pixs); + pixDestroy(&pixd); + + lept_stderr("Test 4 bpp cmapped image with filled cmap:\n"); + pixs = pixRead(FOUR_BPP_IMAGE2); + pixd = shearTest1(pixs, 1.0); + regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 3 */ + pixDisplayWithTitle(pixd, 100, 100, NULL, rp->display); + pixDestroy(&pixs); + pixDestroy(&pixd); + + lept_stderr("Test 8 bpp grayscale image:\n"); + pixs = pixRead(EIGHT_BPP_IMAGE); + pix1 = pixScale(pixs, 0.5, 0.5); + pixd = shearTest1(pixs, 1.0); + regTestWritePixAndCheck(rp, pixd, IFF_JFIF_JPEG); /* 4 */ + pixDisplayWithTitle(pixd, 100, 100, NULL, rp->display); + pixDestroy(&pixs); + pixDestroy(&pix1); + pixDestroy(&pixd); + + lept_stderr("Test 8 bpp grayscale cmap image:\n"); + pixs = pixRead(EIGHT_BPP_CMAP_IMAGE1); + pixd = shearTest1(pixs, 1.0); + regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 5 */ + pixDisplayWithTitle(pixd, 100, 100, NULL, rp->display); + pixDestroy(&pixs); + pixDestroy(&pixd); + + lept_stderr("Test 8 bpp color cmap image:\n"); + pixs = pixRead(EIGHT_BPP_CMAP_IMAGE2); + pix1 = pixScale(pixs, 0.3, 0.3); + pixd = pixOctreeColorQuant(pix1, 200, 0); + pixc = shearTest1(pixd, 1.0); + regTestWritePixAndCheck(rp, pixc, IFF_JFIF_JPEG); /* 6 */ + pixDisplayWithTitle(pixc, 100, 100, NULL, rp->display); + pixDestroy(&pixs); + pixDestroy(&pix1); + pixDestroy(&pixd); + pixDestroy(&pixc); + + lept_stderr("Test rgb image:\n"); + pixs = pixRead(RGB_IMAGE); + pix1 = pixScale(pixs, 0.3, 0.3); + pixd = shearTest1(pix1, 1.0); + regTestWritePixAndCheck(rp, pixd, IFF_JFIF_JPEG); /* 7 */ + pixDisplayWithTitle(pixd, 100, 100, NULL, rp->display); + pixDestroy(&pixs); + pixDestroy(&pix1); + pixDestroy(&pixd); + +#if 1 + lept_stderr("Test in-place shear on 4 bpp cmapped image:\n"); + pixs = pixRead(FOUR_BPP_IMAGE1); + pixd = shearTest2(pixs, rp); + regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 12 */ + pixDisplayWithTitle(pixd, 800, 100, NULL, rp->display); + pixDestroy(&pixs); + pixDestroy(&pixd); +#endif + + return regTestCleanup(rp); +} + +/* ------------------------------------------------------------- */ +static PIX * +shearTest1(PIX *pixs, + l_float32 scale) +{ +l_int32 w, h, d; +PIX *pix1, *pix2, *pixd; +PIXA *pixa; + + pixa = pixaCreate(0); + pixGetDimensions(pixs, &w, &h, &d); + + pix1 = pixHShear(NULL, pixs, 0, ANGLE1, L_BRING_IN_WHITE); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixHShear(NULL, pixs, h / 2, ANGLE1, L_BRING_IN_WHITE); + pixaAddPix(pixa, pix2, L_INSERT); + pix1 = pixHShear(NULL, pixs, 0, ANGLE1, L_BRING_IN_BLACK); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixHShear(NULL, pixs, h / 2, ANGLE1, L_BRING_IN_BLACK); + pixaAddPix(pixa, pix2, L_INSERT); + + if (!pixGetColormap(pixs)) { + pix1 = pixCopy(NULL, pixs); + pixHShearIP(pix1, 0, ANGLE1, L_BRING_IN_WHITE); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixCopy(NULL, pixs); + pixHShearIP(pix2, h / 2, ANGLE1, L_BRING_IN_WHITE); + pixaAddPix(pixa, pix2, L_INSERT); + pix1 = pixCopy(NULL, pixs); + pixHShearIP(pix1, 0, ANGLE1, L_BRING_IN_BLACK); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixCopy(NULL, pixs); + pixHShearIP(pix2, h / 2, ANGLE1, L_BRING_IN_BLACK); + pixaAddPix(pixa, pix2, L_INSERT); + } + + if (d == 8 || d == 32 || pixGetColormap(pixs)) { + pix1 = pixHShearLI(pixs, 0, ANGLE1, L_BRING_IN_WHITE); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixHShearLI(pixs, w / 2, ANGLE1, L_BRING_IN_WHITE); + pixaAddPix(pixa, pix2, L_INSERT); + pix1 = pixHShearLI(pixs, 0, ANGLE1, L_BRING_IN_BLACK); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixHShearLI(pixs, w / 2, ANGLE1, L_BRING_IN_BLACK); + pixaAddPix(pixa, pix2, L_INSERT); + } + + pix1 = pixVShear(NULL, pixs, 0, ANGLE1, L_BRING_IN_WHITE); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixVShear(NULL, pixs, w / 2, ANGLE1, L_BRING_IN_WHITE); + pixaAddPix(pixa, pix2, L_INSERT); + pix1 = pixVShear(NULL, pixs, 0, ANGLE1, L_BRING_IN_BLACK); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixVShear(NULL, pixs, w / 2, ANGLE1, L_BRING_IN_BLACK); + pixaAddPix(pixa, pix2, L_INSERT); + + if (!pixGetColormap(pixs)) { + pix1 = pixCopy(NULL, pixs); + pixVShearIP(pix1, 0, ANGLE1, L_BRING_IN_WHITE); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixCopy(NULL, pixs); + pixVShearIP(pix2, w / 2, ANGLE1, L_BRING_IN_WHITE); + pixaAddPix(pixa, pix2, L_INSERT); + pix1 = pixCopy(NULL, pixs); + pixVShearIP(pix1, 0, ANGLE1, L_BRING_IN_BLACK); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixCopy(NULL, pixs); + pixVShearIP(pix2, w / 2, ANGLE1, L_BRING_IN_BLACK); + pixaAddPix(pixa, pix2, L_INSERT); + } + + if (d == 8 || d == 32 || pixGetColormap(pixs)) { + pix1 = pixVShearLI(pixs, 0, ANGLE1, L_BRING_IN_WHITE); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixVShearLI(pixs, w / 2, ANGLE1, L_BRING_IN_WHITE); + pixaAddPix(pixa, pix2, L_INSERT); + pix1 = pixVShearLI(pixs, 0, ANGLE1, L_BRING_IN_BLACK); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixVShearLI(pixs, w / 2, ANGLE1, L_BRING_IN_BLACK); + pixaAddPix(pixa, pix2, L_INSERT); + } + + pixd = pixaDisplayTiledInColumns(pixa, 4, scale, 20, 0); + pixaDestroy(&pixa); + return pixd; +} + +/* ------------------------------------------------------------- */ +static PIX * +shearTest2(PIX *pixs, + L_REGPARAMS *rp) +{ +l_int32 w, h; +PIX *pix1, *pix2, *pixd; +PIXA *pixa; + + pixa = pixaCreate(0); + pixGetDimensions(pixs, &w, &h, NULL); + + pix1 = pixHShear(NULL, pixs, h / 2, ANGLE1, L_BRING_IN_WHITE); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixCopy(NULL, pixs); + pixHShear(pix2, pix2, h / 2, ANGLE1, L_BRING_IN_WHITE); + pixaAddPix(pixa, pix2, L_INSERT); + regTestComparePix(rp, pix1, pix2); /* 8 */ + pix1 = pixHShear(NULL, pixs, h / 2, ANGLE1, L_BRING_IN_BLACK); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixCopy(NULL, pixs); + pixHShear(pix2, pix2, h / 2, ANGLE1, L_BRING_IN_BLACK); + pixaAddPix(pixa, pix2, L_INSERT); + regTestComparePix(rp, pix1, pix2); /* 9 */ + + pix1 = pixVShear(NULL, pixs, w / 2, ANGLE1, L_BRING_IN_WHITE); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixCopy(NULL, pixs); + pixVShear(pix2, pix2, w / 2, ANGLE1, L_BRING_IN_WHITE); + pixaAddPix(pixa, pix2, L_INSERT); + regTestComparePix(rp, pix1, pix2); /* 10 */ + pix1 = pixVShear(NULL, pixs, w / 2, ANGLE1, L_BRING_IN_BLACK); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixCopy(NULL, pixs); + pixVShear(pix2, pix2, w / 2, ANGLE1, L_BRING_IN_BLACK); + pixaAddPix(pixa, pix2, L_INSERT); + regTestComparePix(rp, pix1, pix2); /* 11 */ + + pixd = pixaDisplayTiledInColumns(pixa, 2, 1.0, 20, 0); + pixaDestroy(&pixa); + return pixd; +} |