/*====================================================================* - 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. *====================================================================*/ /* * blend5_reg.c * * Regression test for these functions in blend.c: * - pixSnapColor(): used here to color the background on images * in index.html * - pixLinearEdgeFade() */ #ifdef HAVE_CONFIG_H #include #endif /* HAVE_CONFIG_H */ #include "allheaders.h" static const l_uint32 LEPTONICA_YELLOW = 0xffffe400; int main(int argc, char **argv) { l_uint32 val32; PIX *pixs, *pix1, *pix2; PIXA *pixa; L_REGPARAMS *rp; if (regTestSetup(argc, argv, &rp)) return 1; pixa = pixaCreate(0); /* First, snap the color directly on the input rgb image. */ pixs = pixRead("Leptonica.jpg"); pixaAddPix(pixa, pixs, L_COPY); pixDisplayWithTitle(pixs, 0, 0, NULL, rp->display); pix1 = pixSnapColor(NULL, pixs, 0xffffff00, LEPTONICA_YELLOW, 30); pixaAddPix(pixa, pix1, L_INSERT); regTestWritePixAndCheck(rp, pix1, IFF_JFIF_JPEG); /* 0 */ pixDisplayWithTitle(pix1, 480, 0, NULL, rp->display); /* Then make a colormapped version and snap the color */ pix1 = pixOctreeQuantNumColors(pixs, 250, 0); pixaAddPix(pixa, pix1, L_COPY); pixSnapColor(pix1, pix1, 0xffffff00, LEPTONICA_YELLOW, 30); pixaAddPix(pixa, pix1, L_INSERT); regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 1 */ pixDisplayWithTitle(pix1, 880, 0, NULL, rp->display); pixDestroy(&pixs); /* Set the background of the google searchbox to yellow. * The input image is colormapped with all 256 colors used. */ pixs = pixRead("google-searchbox.png"); pixaAddPix(pixa, pixs, L_INSERT); pixDisplayWithTitle(pixs, 0, 200, NULL, rp->display); pix1 = pixSnapColor(NULL, pixs, 0xffffff00, LEPTONICA_YELLOW, 30); pixaAddPix(pixa, pix1, L_INSERT); regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 2 */ pixDisplayWithTitle(pix1, 220, 200, NULL, rp->display); /* A couple of more, setting pixels near white to strange colors */ pixs = pixRead("weasel4.11c.png"); pixaAddPix(pixa, pixs, L_INSERT); pixDisplayWithTitle(pixs, 0, 300, NULL, rp->display); pix1 = pixSnapColor(NULL, pixs, 0xfefefe00, 0x80800000, 50); pixaAddPix(pixa, pix1, L_INSERT); regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 3 */ pixDisplayWithTitle(pix1, 200, 300, NULL, rp->display); pixs = pixRead("wyom.jpg"); pix1 = pixFixedOctcubeQuant256(pixs, 0); pixaAddPix(pixa, pix1, L_INSERT); regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 4 */ pixDisplayWithTitle(pix1, 0, 450, NULL, rp->display); pix2 = pixSnapColor(NULL, pix1, 0xf0f0f000, 0x80008000, 100); pixaAddPix(pixa, pix2, L_INSERT); regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 5 */ pixDisplayWithTitle(pix2, 900, 450, NULL, rp->display); pixDestroy(&pixs); /* --- Display results --- */ pix1 = pixaDisplayTiledInColumns(pixa, 2, 1.0, 25, 2); regTestWritePixAndCheck(rp, pix1, IFF_JFIF_JPEG); /* 6 */ pixDisplayWithTitle(pix1, 500, 0, NULL, rp->display); pixDestroy(&pix1); pixaDestroy(&pixa); /* Test linear fade to black */ composeRGBPixel(90, 170, 145, &val32); pix1 = pixCreate(300, 300, 32); pixSetAllArbitrary(pix1, val32); pixLinearEdgeFade(pix1, L_FROM_LEFT, L_BLEND_TO_BLACK, 0.5, 0.8); pixLinearEdgeFade(pix1, L_FROM_RIGHT, L_BLEND_TO_BLACK, 0.5, 0.8); regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 7 */ pixDisplayWithTitle(pix1, 900, 0, NULL, rp->display); pixDestroy(&pix1); pix1 = pixCreate(300, 300, 32); pixSetAllArbitrary(pix1, val32); pixLinearEdgeFade(pix1, L_FROM_TOP, L_BLEND_TO_BLACK, 0.5, 0.8); pixLinearEdgeFade(pix1, L_FROM_BOT, L_BLEND_TO_BLACK, 0.5, 0.8); regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 8 */ pixDisplayWithTitle(pix1, 1250, 0, NULL, rp->display); pixDestroy(&pix1); pix1 = pixCreate(300, 300, 32); pixSetAllArbitrary(pix1, val32); pixLinearEdgeFade(pix1, L_FROM_LEFT, L_BLEND_TO_BLACK, 0.5, 0.8); pixLinearEdgeFade(pix1, L_FROM_RIGHT, L_BLEND_TO_BLACK, 0.5, 0.8); pixLinearEdgeFade(pix1, L_FROM_TOP, L_BLEND_TO_BLACK, 0.5, 0.8); pixLinearEdgeFade(pix1, L_FROM_BOT, L_BLEND_TO_BLACK, 0.5, 0.8); regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 9 */ pixDisplayWithTitle(pix1, 1600, 0, NULL, rp->display); pixDestroy(&pix1); pix1 = pixCreate(300, 300, 8); /* 8 bpp */ pixSetAll(pix1); pixLinearEdgeFade(pix1, L_FROM_LEFT, L_BLEND_TO_BLACK, 0.5, 0.8); pixLinearEdgeFade(pix1, L_FROM_RIGHT, L_BLEND_TO_BLACK, 0.5, 0.8); pixLinearEdgeFade(pix1, L_FROM_TOP, L_BLEND_TO_BLACK, 0.5, 0.8); pixLinearEdgeFade(pix1, L_FROM_BOT, L_BLEND_TO_BLACK, 0.5, 0.8); regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 10 */ pixDisplayWithTitle(pix1, 1950, 0, NULL, rp->display); pixDestroy(&pix1); /* Test linear fade to white */ composeRGBPixel(170, 110, 200, &val32); pix1 = pixCreate(300, 300, 32); pixSetAllArbitrary(pix1, val32); pixLinearEdgeFade(pix1, L_FROM_LEFT, L_BLEND_TO_WHITE, 0.5, 0.8); pixLinearEdgeFade(pix1, L_FROM_RIGHT, L_BLEND_TO_WHITE, 0.5, 0.8); regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 11 */ pixDisplayWithTitle(pix1, 900, 380, NULL, rp->display); pixDestroy(&pix1); pix1 = pixCreate(300, 300, 32); pixSetAllArbitrary(pix1, val32); pixLinearEdgeFade(pix1, L_FROM_TOP, L_BLEND_TO_WHITE, 0.5, 0.8); pixLinearEdgeFade(pix1, L_FROM_BOT, L_BLEND_TO_WHITE, 0.5, 0.8); regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 12 */ pixDisplayWithTitle(pix1, 1250, 380, NULL, rp->display); pixDestroy(&pix1); pix1 = pixCreate(300, 300, 32); pixSetAllArbitrary(pix1, val32); pixLinearEdgeFade(pix1, L_FROM_LEFT, L_BLEND_TO_WHITE, 0.5, 0.8); pixLinearEdgeFade(pix1, L_FROM_RIGHT, L_BLEND_TO_WHITE, 0.5, 0.8); pixLinearEdgeFade(pix1, L_FROM_TOP, L_BLEND_TO_WHITE, 0.5, 0.8); pixLinearEdgeFade(pix1, L_FROM_BOT, L_BLEND_TO_WHITE, 0.5, 0.8); regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 13 */ pixDisplayWithTitle(pix1, 1600, 380, NULL, rp->display); pixDestroy(&pix1); pix1 = pixCreate(300, 300, 8); /* 8 bpp */ pixLinearEdgeFade(pix1, L_FROM_LEFT, L_BLEND_TO_WHITE, 0.5, 0.8); pixLinearEdgeFade(pix1, L_FROM_RIGHT, L_BLEND_TO_WHITE, 0.5, 0.8); pixLinearEdgeFade(pix1, L_FROM_TOP, L_BLEND_TO_WHITE, 0.5, 0.8); pixLinearEdgeFade(pix1, L_FROM_BOT, L_BLEND_TO_WHITE, 0.5, 0.8); regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 14 */ pixDisplayWithTitle(pix1, 1950, 380, NULL, rp->display); pixDestroy(&pix1); return regTestCleanup(rp); }