/*====================================================================* - 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. *====================================================================*/ /* * texturefill_reg.c * * This demonstrates a method for filling in a region using nearby * patches and mirrored tiling to generate the texture. * * For each of a set of possible tiles to use, convert to gray * and compute the mean and standard deviation of the intensity. * Then determine the specific tile to use for filling by selecting * the one that (1) has a mean value within 1.0 stdev of the median * of average intensities, and (2) of that set has the smallest * standard deviation of intensity. * * We can choose tiles looking either horizontally or vertically * away from the region to be textured, or both. If both, the * selected tiles are blended before painting the resulting * texture through a mask. */ #ifdef HAVE_CONFIG_H #include #endif /* HAVE_CONFIG_H */ #include "allheaders.h" /* Designed to work with amoris.2.150.jpg */ static PIX *MakeReplacementMask(PIX *pixs); l_int32 main(int argc, char **argv) { l_int32 bx, by, bw, bh; l_uint32 pixval; BOX *box1, *box2; BOXA *boxa; PIX *pixs, *pixm, *pixd; PIX *pix0, *pix1, *pix2, *pix3, *pix4, *pix5, *pix6; L_REGPARAMS *rp; if (regTestSetup(argc, argv, &rp)) return 1; /* Find a mask for repainting pixels */ pixs = pixRead("amoris.2.150.jpg"); pix1 = MakeReplacementMask(pixs); boxa = pixConnCompBB(pix1, 8); box1 = boxaGetBox(boxa, 0, L_COPY); boxaDestroy(&boxa); /*--------------------------------------------------------* * Show the individual steps * *--------------------------------------------------------*/ /* Locate a good tile to use */ pixFindRepCloseTile(pixs, box1, L_VERT, 20, 30, 7, &box2, 1); pix0 = pixCopy(NULL, pix1); pixRenderBox(pix0, box2, 2, L_SET_PIXELS); /* Make a patch using this tile */ boxGetGeometry(box1, &bx, &by, &bw, &bh); pix2 = pixClipRectangle(pixs, box2, NULL); regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 0 */ pixDisplayWithTitle(pix2, 400, 100, NULL, rp->display); pix3 = pixMirroredTiling(pix2, bw, bh); regTestWritePixAndCheck(rp, pix3, IFF_PNG); /* 1 */ pixDisplayWithTitle(pix3, 1000, 0, NULL, rp->display); /* Paint the patch through the mask */ pixd = pixCopy(NULL, pixs); pixm = pixClipRectangle(pix1, box1, NULL); pixCombineMaskedGeneral(pixd, pix3, pixm, bx, by); regTestWritePixAndCheck(rp, pixd, IFF_JFIF_JPEG); /* 2 */ pixDisplayWithTitle(pixd, 0, 0, NULL, rp->display); boxDestroy(&box2); pixDestroy(&pixm); pixDestroy(&pixd); pixDestroy(&pix2); /* Blend two patches and then overlay. Use the previous * tile found vertically and a new one found horizontally. */ pixFindRepCloseTile(pixs, box1, L_HORIZ, 20, 30, 7, &box2, 1); pixRenderBox(pix0, box2, 2, L_SET_PIXELS); regTestWritePixAndCheck(rp, pix0, IFF_TIFF_G4); /* 3 */ pixDisplayWithTitle(pix0, 100, 100, NULL, rp->display); pix2 = pixClipRectangle(pixs, box2, NULL); pix4 = pixMirroredTiling(pix2, bw, bh); regTestWritePixAndCheck(rp, pix4, IFF_PNG); /* 4 */ pixDisplayWithTitle(pix4, 1100, 0, NULL, rp->display); pix5 = pixBlend(pix3, pix4, 0, 0, 0.5); regTestWritePixAndCheck(rp, pix5, IFF_PNG); /* 5 */ pixDisplayWithTitle(pix5, 1200, 0, NULL, rp->display); pix6 = pixClipRectangle(pix1, box1, NULL); pixd = pixCopy(NULL, pixs); pixCombineMaskedGeneral(pixd, pix5, pix6, bx, by); regTestWritePixAndCheck(rp, pixd, IFF_JFIF_JPEG); /* 6 */ pixDisplayWithTitle(pixd, 700, 200, NULL, rp->display); boxDestroy(&box2); pixDestroy(&pixd); pixDestroy(&pix0); pixDestroy(&pix2); pixDestroy(&pix3); pixDestroy(&pix4); pixDestroy(&pix5); pixDestroy(&pix6); /*--------------------------------------------------------* * Show painting from a color near region * *--------------------------------------------------------*/ pix2 = pixCopy(NULL, pixs); pixGetColorNearMaskBoundary(pix2, pix1, box1, 20, &pixval, 0); pix3 = pixClipRectangle(pix1, box1, NULL); boxGetGeometry(box1, &bx, &by, NULL, NULL); pixSetMaskedGeneral(pix2, pix3, pixval, bx, by); regTestWritePixAndCheck(rp, pix2, IFF_JFIF_JPEG); /* 7 */ pixDisplayWithTitle(pix2, 0, 0, NULL, rp->display); boxDestroy(&box1); pixDestroy(&pix2); pixDestroy(&pix3); /*--------------------------------------------------------* * Use the higher-level function * *--------------------------------------------------------*/ /* Use various tile selections and tile blending with one component */ pix2 = pixCopy(NULL, pixs); pix3 = pixCopy(NULL, pixs); pix4 = pixCopy(NULL, pixs); pixPaintSelfThroughMask(pix2, pix1, 0, 0, L_HORIZ, 30, 50, 5, 10); pixPaintSelfThroughMask(pix3, pix1, 0, 0, L_VERT, 30, 50, 5, 0); pixPaintSelfThroughMask(pixs, pix1, 0, 0, L_BOTH_DIRECTIONS, 30, 50, 5, 20); regTestWritePixAndCheck(rp, pix2, IFF_JFIF_JPEG); /* 8 */ regTestWritePixAndCheck(rp, pix3, IFF_JFIF_JPEG); /* 9 */ regTestWritePixAndCheck(rp, pixs, IFF_JFIF_JPEG); /* 10 */ pixDisplayWithTitle(pix2, 300, 0, NULL, rp->display); pixDisplayWithTitle(pix3, 500, 0, NULL, rp->display); pixDisplayWithTitle(pixs, 700, 0, NULL, rp->display); /* Test with two components; */ pix5 = pixFlipLR(NULL, pix1); pixOr(pix5, pix5, pix1); pixPaintSelfThroughMask(pix4, pix5, 0, 0, L_BOTH_DIRECTIONS, 50, 100, 5, 9); regTestWritePixAndCheck(rp, pix4, IFF_JFIF_JPEG); /* 11 */ pixDisplayWithTitle(pix4, 900, 0, NULL, rp->display); pixDestroy(&pixs); pixDestroy(&pix1); pixDestroy(&pix2); pixDestroy(&pix3); pixDestroy(&pix4); pixDestroy(&pix5); return regTestCleanup(rp); } PIX * MakeReplacementMask(PIX *pixs) { PIX *pix1, *pix2, *pix3, *pix4; pix1 = pixMaskOverColorPixels(pixs, 95, 3); pix2 = pixMorphSequence(pix1, "o15.15", 0); pixSeedfillBinary(pix2, pix2, pix1, 8); pix3 = pixMorphSequence(pix2, "c15.15 + d61.31", 0); pix4 = pixRemoveBorderConnComps(pix3, 8); pixXor(pix4, pix4, pix3); pixDestroy(&pix1); pixDestroy(&pix2); pixDestroy(&pix3); return pix4; }