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Diffstat (limited to 'leptonica/prog/rotate2_reg.c')
| -rw-r--r-- | leptonica/prog/rotate2_reg.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/leptonica/prog/rotate2_reg.c b/leptonica/prog/rotate2_reg.c new file mode 100644 index 00000000..7e6b4865 --- /dev/null +++ b/leptonica/prog/rotate2_reg.c @@ -0,0 +1,175 @@ +/*====================================================================* + - 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. + *====================================================================*/ + +/* + * rotate2_reg.c + * + * Regression test for rotation by shear, sampling and area mapping. + * Displays results from all the various types of rotations. + */ + +#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 const l_float32 ANGLE1 = 3.14159265 / 30.; +static const l_float32 ANGLE2 = 3.14159265 / 7.; + +void RotateTest(PIX *pixs, l_float32 scale, L_REGPARAMS *rp); + + +int main(int argc, + char **argv) +{ +PIX *pixs, *pixd; +L_REGPARAMS *rp; + + if (regTestSetup(argc, argv, &rp)) + return 1; + + lept_stderr("Test binary image:\n"); + pixs = pixRead(BINARY_IMAGE); + RotateTest(pixs, 1.0, rp); + pixDestroy(&pixs); + + lept_stderr("Test 2 bpp cmapped image with filled cmap:\n"); + pixs = pixRead(TWO_BPP_IMAGE); + RotateTest(pixs, 1.0, rp); + pixDestroy(&pixs); + + lept_stderr("Test 4 bpp cmapped image with unfilled cmap:\n"); + pixs = pixRead(FOUR_BPP_IMAGE1); + RotateTest(pixs, 1.0, rp); + pixDestroy(&pixs); + + lept_stderr("Test 4 bpp cmapped image with filled cmap:\n"); + pixs = pixRead(FOUR_BPP_IMAGE2); + RotateTest(pixs, 1.0, rp); + pixDestroy(&pixs); + + lept_stderr("Test 8 bpp grayscale image:\n"); + pixs = pixRead(EIGHT_BPP_IMAGE); + RotateTest(pixs, 1.0, rp); + pixDestroy(&pixs); + + lept_stderr("Test 8 bpp grayscale cmap image:\n"); + pixs = pixRead(EIGHT_BPP_CMAP_IMAGE1); + RotateTest(pixs, 1.0, rp); + pixDestroy(&pixs); + + lept_stderr("Test 8 bpp color cmap image:\n"); + pixs = pixRead(EIGHT_BPP_CMAP_IMAGE2); + pixd = pixOctreeColorQuant(pixs, 200, 0); + RotateTest(pixd, 0.5, rp); + pixDestroy(&pixs); + pixDestroy(&pixd); + + lept_stderr("Test rgb image:\n"); + pixs = pixRead(RGB_IMAGE); + RotateTest(pixs, 0.25, rp); + pixDestroy(&pixs); + + return regTestCleanup(rp); +} + + +void +RotateTest(PIX *pixs, + l_float32 scale, + L_REGPARAMS *rp) +{ +l_int32 w, h, d, outformat; +PIX *pix1, *pix2, *pix3, *pixd; +PIXA *pixa; + + pixGetDimensions(pixs, &w, &h, &d); + outformat = (d == 8 || d == 32) ? IFF_JFIF_JPEG : IFF_PNG; + + pixa = pixaCreate(0); + pix1 = pixRotate(pixs, ANGLE1, L_ROTATE_SHEAR, L_BRING_IN_WHITE, w, h); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixRotate(pixs, ANGLE1, L_ROTATE_SHEAR, L_BRING_IN_BLACK, w, h); + pixaAddPix(pixa, pix2, L_INSERT); + pix1 = pixRotate(pixs, ANGLE1, L_ROTATE_SHEAR, L_BRING_IN_WHITE, 0, 0); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixRotate(pixs, ANGLE1, L_ROTATE_SHEAR, L_BRING_IN_BLACK, 0, 0); + pixaAddPix(pixa, pix2, L_INSERT); + pix1 = pixRotate(pixs, ANGLE2, L_ROTATE_SHEAR, L_BRING_IN_WHITE, w, h); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixRotate(pixs, ANGLE2, L_ROTATE_SHEAR, L_BRING_IN_BLACK, w, h); + pixaAddPix(pixa, pix2, L_INSERT); + pix1 = pixRotate(pixs, ANGLE2, L_ROTATE_SHEAR, L_BRING_IN_WHITE, 0, 0); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixRotate(pixs, ANGLE2, L_ROTATE_SHEAR, L_BRING_IN_BLACK, 0, 0); + pixaAddPix(pixa, pix2, L_INSERT); + pixd = pixaDisplayTiledInColumns(pixa, 2, scale, 20, 0); + regTestWritePixAndCheck(rp, pixd, outformat); + pixDisplayWithTitle(pixd, 100, 100, NULL, rp->display); + pixDestroy(&pixd); + pixaDestroy(&pixa); + + pixa = pixaCreate(0); + pix1 = pixRotate(pixs, ANGLE2, L_ROTATE_SAMPLING, L_BRING_IN_WHITE, w, h); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixRotate(pixs, ANGLE2, L_ROTATE_SAMPLING, L_BRING_IN_BLACK, w, h); + pixaAddPix(pixa, pix2, L_INSERT); + pix1 = pixRotate(pixs, ANGLE2, L_ROTATE_SAMPLING, L_BRING_IN_WHITE, 0, 0); + pixaAddPix(pixa, pix1, L_INSERT); + pix2 = pixRotate(pixs, ANGLE2, L_ROTATE_SAMPLING, L_BRING_IN_BLACK, 0, 0); + pixaAddPix(pixa, pix2, L_INSERT); + + if (pixGetDepth(pixs) == 1) + pix1 = pixScaleToGray2(pixs); + else + pix1 = pixClone(pixs); + pix2 = pixRotate(pix1, ANGLE2, L_ROTATE_AREA_MAP, L_BRING_IN_WHITE, w, h); + pixaAddPix(pixa, pix2, L_INSERT); + pix3 = pixRotate(pix1, ANGLE2, L_ROTATE_AREA_MAP, L_BRING_IN_BLACK, w, h); + pixaAddPix(pixa, pix3, L_INSERT); + pix2 = pixRotate(pix1, ANGLE2, L_ROTATE_AREA_MAP, L_BRING_IN_WHITE, 0, 0); + pixaAddPix(pixa, pix2, L_INSERT); + pix3 = pixRotate(pix1, ANGLE2, L_ROTATE_AREA_MAP, L_BRING_IN_BLACK, 0, 0); + pixaAddPix(pixa, pix3, L_INSERT); + pixDestroy(&pix1); + pixd = pixaDisplayTiledInColumns(pixa, 2, scale, 20, 0); + regTestWritePixAndCheck(rp, pixd, outformat); + pixDisplayWithTitle(pixd, 600, 100, NULL, rp->display); + pixDestroy(&pixd); + pixaDestroy(&pixa); + + return; +} |