/* ----------------------------------------------------- */
void PixaDisplayNumbered(PIXA *pixa,
const char *basename)
{
char buf[64];
l_int32 fill, color, d;
L_BMF *bmf;
PIX *pix1;
PIXA *pixa1, *pixa2;
bmf = bmfCreate(NULL, 4);
pixaGetPixDimensions(pixa, 0, NULL, NULL, &d);
fill = (d == 8) ? 0xff : 0;
color = (d == 8) ? 0x00000000 : 0xffffff00;
pixa1 = pixaAddBorderGeneral(NULL, pixa, 10, 10, 0, 0, fill);
pixa2 = pixaAddTextNumber(pixa1, bmf, NULL, color, L_ADD_BELOW);
snprintf(buf, sizeof(buf), "%s.pa", basename);
pixaWrite(buf, pixa2);
pix1 = pixaDisplayTiledInColumns(pixa2, 20, 2.5, 15, 2);
snprintf(buf, sizeof(buf), "%s.png", basename);
pixWrite(buf, pix1, IFF_PNG);
pixDisplay(pix1, 500, 500);
pixDestroy(&pix1);
pixaDestroy(&pixa1);
pixaDestroy(&pixa2);
bmfDestroy(&bmf);
}
int main(int argc,
char **argv)
{
l_float32 fcolor;
PIX *pix1, *pix2, *pix3, *pix4;
PIXA *pixadb;
static char mainName[] = "find_colorregions";
lept_mkdir("lept/color");
pix1 = pixRead("colorpage.030.jpg");
/* pix1 = pixRead("map.057.jpg"); */
/* More general method */
pixadb = pixaCreate(0);
pixFindColorRegions(pix1, NULL, 4, 200, 60, 10, 90, 0.05,
&fcolor, &pix3, &pix4, pixadb);
fprintf(stderr, "ncolor = %f\n", fcolor);
if (pix3) pixDisplay(pix3, 0, 800);
if (pix4) pixDisplay(pix4, 600, 800);
pix2 = pixaDisplayTiledInColumns(pixadb, 5, 0.3, 20, 2);
pixDisplay(pix2, 0, 0);
pixWrite("/tmp/lept/color/result1.png", pix2, IFF_PNG);
pixDestroy(&pix2);
pixDestroy(&pix3);
pixDestroy(&pix4);
pixaDestroy(&pixadb);
/* Method for pages with very light background */
pixadb = pixaCreate(0);
pixFindColorRegionsLight(pix1, NULL, 4, 60, 230, 40, 20,
&fcolor, &pix3, &pix4, pixadb);
fprintf(stderr, "ncolor = %f\n", fcolor);
if (pix3) pixDisplay(pix3, 1100, 800);
if (pix4) pixDisplay(pix4, 1700, 800);
pix2 = pixaDisplayTiledInColumns(pixadb, 5, 0.3, 20, 2);
pixDisplay(pix2, 1100, 0);
pixWrite("/tmp/lept/color/result2.png", pix2, IFF_PNG);
pixDestroy(&pix2);
pixDestroy(&pix3);
pixDestroy(&pix4);
pixaDestroy(&pixadb);
pixDestroy(&pix1);
return 0;
}
void static
PlotBoxa(L_REGPARAMS *rp,
l_int32 index)
{
BOXA *boxa1, *boxa2;
PIX *pix1, *pix2, *pix3;
PIXA *pixa;
boxa1 = boxaRead(boxafiles[index]);
/* Read and display initial boxa */
boxaPlotSizes(boxa1, NULL, NULL, NULL, &pix1);
boxaPlotSides(boxa1, NULL, NULL, NULL, NULL, NULL, &pix2);
pixa = pixaCreate(2);
pixaAddPix(pixa, pix1, L_INSERT);
pixaAddPix(pixa, pix2, L_INSERT);
pix3 = pixaDisplayTiledInColumns(pixa, 2, 1.0, 20, 2);
regTestWritePixAndCheck(rp, pix3, IFF_PNG); /* 39, 41, 43 */
pixDisplayWithTitle(pix3, 0 + 800 * index, 500, NULL, rp->display);
pixDestroy(&pix3);
pixaDestroy(&pixa);
/* Read and display reconciled boxa */
boxa2 = boxaReconcileSizeByMedian(boxa1, L_CHECK_BOTH, 0.05, 0.04, 1.03,
NULL, NULL, NULL);
boxaPlotSizes(boxa2, NULL, NULL, NULL, &pix1);
boxaPlotSides(boxa2, NULL, NULL, NULL, NULL, NULL, &pix2);
pixa = pixaCreate(2);
pixaAddPix(pixa, pix1, L_INSERT);
pixaAddPix(pixa, pix2, L_INSERT);
pix3 = pixaDisplayTiledInColumns(pixa, 2, 1.0, 20, 2);
regTestWritePixAndCheck(rp, pix3, IFF_PNG); /* 40, 42, 44 */
pixDisplayWithTitle(pix3, 0 + 800 * index, 920, NULL, rp->display);
pixDestroy(&pix3);
pixaDestroy(&pixa);
boxaDestroy(&boxa1);
boxaDestroy(&boxa2);
}
int main(int argc,
char **argv)
{
char dilateseq[512], erodeseq[512];
char openseq[512], closeseq[512];
char wtophatseq[512], btophatseq[512];
l_int32 w, h;
PIX *pixs, *pix1, *pix2, *pix3, *pix4, *pix5;
PIXA *pixa;
PIXACC *pacc;
PIXCMAP *cmap;
L_REGPARAMS *rp;
if (regTestSetup(argc, argv, &rp))
return 1;
pixs = pixRead("aneurisms8.jpg");
pixa = pixaCreate(0);
/* =========================================================== */
/* -------- Test gray morph, including interpreter ------------ */
pix1 = pixDilateGray(pixs, WSIZE, HSIZE);
sprintf(dilateseq, "D%d.%d", WSIZE, HSIZE);
pix2 = pixGrayMorphSequence(pixs, dilateseq, 0, 0);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 0 */
regTestComparePix(rp, pix1, pix2); /* 1 */
pixaAddPix(pixa, pix1, L_INSERT);
pixDestroy(&pix2);
pix1 = pixErodeGray(pixs, WSIZE, HSIZE);
sprintf(erodeseq, "E%d.%d", WSIZE, HSIZE);
pix2 = pixGrayMorphSequence(pixs, erodeseq, 0, 100);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 2 */
regTestComparePix(rp, pix1, pix2); /* 3 */
pixaAddPix(pixa, pix1, L_INSERT);
pixDestroy(&pix2);
pix1 = pixOpenGray(pixs, WSIZE, HSIZE);
sprintf(openseq, "O%d.%d", WSIZE, HSIZE);
pix2 = pixGrayMorphSequence(pixs, openseq, 0, 200);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 4 */
regTestComparePix(rp, pix1, pix2); /* 5 */
pixaAddPix(pixa, pix1, L_INSERT);
pixDestroy(&pix2);
pix1 = pixCloseGray(pixs, WSIZE, HSIZE);
sprintf(closeseq, "C%d.%d", WSIZE, HSIZE);
pix2 = pixGrayMorphSequence(pixs, closeseq, 0, 300);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 6 */
regTestComparePix(rp, pix1, pix2); /* 7 */
pixaAddPix(pixa, pix1, L_INSERT);
pixDestroy(&pix2);
pix1 = pixTophat(pixs, WSIZE, HSIZE, L_TOPHAT_WHITE);
sprintf(wtophatseq, "Tw%d.%d", WSIZE, HSIZE);
pix2 = pixGrayMorphSequence(pixs, wtophatseq, 0, 400);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 8 */
regTestComparePix(rp, pix1, pix2); /* 9 */
pixaAddPix(pixa, pix1, L_INSERT);
pixDestroy(&pix2);
pix1 = pixTophat(pixs, WSIZE, HSIZE, L_TOPHAT_BLACK);
sprintf(btophatseq, "Tb%d.%d", WSIZE, HSIZE);
pix2 = pixGrayMorphSequence(pixs, btophatseq, 0, 500);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 10 */
regTestComparePix(rp, pix1, pix2); /* 11 */
pixaAddPix(pixa, pix1, L_INSERT);
pixDestroy(&pix2);
/* ------------- Test erode/dilate duality -------------- */
pix1 = pixDilateGray(pixs, WSIZE, HSIZE);
pix2 = pixInvert(NULL, pixs);
pix3 = pixErodeGray(pix2, WSIZE, HSIZE);
pixInvert(pix3, pix3);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 12 */
regTestComparePix(rp, pix1, pix3); /* 13 */
pixaAddPix(pixa, pix1, L_INSERT);
pixDestroy(&pix2);
pixDestroy(&pix3);
/* ------------- Test open/close duality -------------- */
pix1 = pixOpenGray(pixs, WSIZE, HSIZE);
pix2 = pixInvert(NULL, pixs);
pix3 = pixCloseGray(pix2, WSIZE, HSIZE);
pixInvert(pix3, pix3);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 14 */
regTestComparePix(rp, pix1, pix3); /* 15 */
pixaAddPix(pixa, pix1, L_INSERT);
pixDestroy(&pix2);
pixDestroy(&pix3);
/* ------------- Test tophat duality -------------- */
pix1 = pixTophat(pixs, WSIZE, HSIZE, L_TOPHAT_WHITE);
pix2 = pixInvert(NULL, pixs);
pix3 = pixTophat(pix2, WSIZE, HSIZE, L_TOPHAT_BLACK);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 16 */
regTestComparePix(rp, pix1, pix3); /* 17 */
pixaAddPix(pixa, pix1, L_INSERT);
pixDestroy(&pix2);
pixDestroy(&pix3);
pix1 = pixGrayMorphSequence(pixs, "Tw9.5", 0, 100);
pix2 = pixInvert(NULL, pixs);
pix3 = pixGrayMorphSequence(pix2, "Tb9.5", 0, 300);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 18 */
regTestComparePix(rp, pix1, pix3); /* 19 */
pixaAddPix(pixa, pix1, L_INSERT);
pixDestroy(&pix2);
pixDestroy(&pix3);
/* ------------- Test opening/closing for large sels -------------- */
pix1 = pixGrayMorphSequence(pixs,
"C9.9 + C19.19 + C29.29 + C39.39 + C49.49", 0, 100);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 20 */
pixaAddPix(pixa, pix1, L_INSERT);
pix1 = pixGrayMorphSequence(pixs,
"O9.9 + O19.19 + O29.29 + O39.39 + O49.49", 0, 400);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 21 */
pixaAddPix(pixa, pix1, L_INSERT);
pix1 = pixaDisplayTiledInColumns(pixa, 4, 1.0, 20, 2);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 22 */
pixDisplayWithTitle(pix1, 0, 0, NULL, rp->display);
pixaDestroy(&pixa);
pixDestroy(&pix1);
/* =========================================================== */
pixa = pixaCreate(0);
/* ---------- Closing plus white tophat result ------------ *
* Parameters: wsize, hsize = 9, 29 *
* ---------------------------------------------------------*/
pix1 = pixCloseGray(pixs, 9, 9);
pix2 = pixTophat(pix1, 9, 9, L_TOPHAT_WHITE);
pix3 = pixGrayMorphSequence(pixs, "C9.9 + TW9.9", 0, 0);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 23 */
regTestComparePix(rp, pix2, pix3); /* 24 */
pixaAddPix(pixa, pix1, L_INSERT);
pix1 = pixMaxDynamicRange(pix2, L_LINEAR_SCALE);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 25 */
pixaAddPix(pixa, pix1, L_INSERT);
pixDestroy(&pix2);
pixDestroy(&pix3);
pix1 = pixCloseGray(pixs, 29, 29);
pix2 = pixTophat(pix1, 29, 29, L_TOPHAT_WHITE);
pix3 = pixGrayMorphSequence(pixs, "C29.29 + Tw29.29", 0, 0);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 26 */
regTestComparePix(rp, pix2, pix3); /* 27 */
pixaAddPix(pixa, pix1, L_INSERT);
pix1 = pixMaxDynamicRange(pix2, L_LINEAR_SCALE);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 28 */
pixaAddPix(pixa, pix1, L_INSERT);
pixDestroy(&pix2);
pixDestroy(&pix3);
/* --------- hdome with parameter height = 100 ------------*/
pix1 = pixHDome(pixs, 100, 4);
pix2 = pixMaxDynamicRange(pix1, L_LINEAR_SCALE);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 29 */
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 30 */
pixaAddPix(pixa, pix1, L_INSERT);
pixaAddPix(pixa, pix2, L_INSERT);
/* ----- Contrast enhancement with morph parameters 9, 9 -------*/
pixGetDimensions(pixs, &w, &h, NULL);
pix1 = pixInitAccumulate(w, h, 0x8000);
pixAccumulate(pix1, pixs, L_ARITH_ADD);
pixMultConstAccumulate(pix1, 3., 0x8000);
pix2 = pixOpenGray(pixs, 9, 9);
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 31 */
pixaAddPix(pixa, pix2, L_INSERT);
pixAccumulate(pix1, pix2, L_ARITH_SUBTRACT);
pix2 = pixCloseGray(pixs, 9, 9);
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 32 */
pixaAddPix(pixa, pix2, L_INSERT);
pixAccumulate(pix1, pix2, L_ARITH_SUBTRACT);
pix2 = pixFinalAccumulate(pix1, 0x8000, 8);
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 33 */
pixaAddPix(pixa, pix2, L_INSERT);
pixDestroy(&pix1);
/* Do the same thing with the Pixacc */
pacc = pixaccCreate(w, h, 1);
pixaccAdd(pacc, pixs);
pixaccMultConst(pacc, 3.);
pix1 = pixOpenGray(pixs, 9, 9);
pixaccSubtract(pacc, pix1);
pixDestroy(&pix1);
pix1 = pixCloseGray(pixs, 9, 9);
pixaccSubtract(pacc, pix1);
pixDestroy(&pix1);
pix1 = pixaccFinal(pacc, 8);
pixaccDestroy(&pacc);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 34 */
pixaAddPix(pixa, pix1, L_INSERT);
regTestComparePix(rp, pix1, pix2); /* 35 */
pix1 = pixaDisplayTiledInColumns(pixa, 4, 1.0, 20, 2);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 36 */
pixDisplayWithTitle(pix1, 1100, 0, NULL, rp->display);
pixaDestroy(&pixa);
pixDestroy(&pix1);
pixDestroy(&pixs);
/* =========================================================== */
pixa = pixaCreate(0);
/* ---- Tophat result on feynman stamp, to extract diagrams ----- */
pixs = pixRead("feynman-stamp.jpg");
pixGetDimensions(pixs, &w, &h, NULL);
/* Make output image to hold five intermediate images */
pix1 = pixCreate(5 * w + 18, h + 6, 32); /* composite output image */
pixSetAllArbitrary(pix1, 0x0000ff00); /* set to blue */
/* Paste in the input image */
pix2 = pixRemoveColormap(pixs, REMOVE_CMAP_TO_FULL_COLOR);
pixRasterop(pix1, 3, 3, w, h, PIX_SRC, pix2, 0, 0); /* 1st one */
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 37 */
pixaAddPix(pixa, pix2, L_INSERT);
/* Paste in the grayscale version */
cmap = pixGetColormap(pixs);
if (cmap)
pix2 = pixRemoveColormap(pixs, REMOVE_CMAP_TO_GRAYSCALE);
else
pix2 = pixConvertRGBToGray(pixs, 0.33, 0.34, 0.33);
pix3 = pixConvertTo32(pix2); /* 8 --> 32 bpp */
pixRasterop(pix1, w + 6, 3, w, h, PIX_SRC, pix3, 0, 0); /* 2nd one */
regTestWritePixAndCheck(rp, pix3, IFF_PNG); /* 38 */
pixaAddPix(pixa, pix3, L_INSERT);
/* Paste in a log dynamic range scaled version of the white tophat */
pix3 = pixTophat(pix2, 3, 3, L_TOPHAT_WHITE);
pix4 = pixMaxDynamicRange(pix3, L_LOG_SCALE);
pix5 = pixConvertTo32(pix4);
pixRasterop(pix1, 2 * w + 9, 3, w, h, PIX_SRC, pix5, 0, 0); /* 3rd */
regTestWritePixAndCheck(rp, pix5, IFF_PNG); /* 39 */
pixaAddPix(pixa, pix5, L_INSERT);
pixDestroy(&pix2);
pixDestroy(&pix4);
/* Stretch the range and threshold to binary; paste it in */
pix2 = pixGammaTRC(NULL, pix3, 1.0, 0, 80);
pix4 = pixThresholdToBinary(pix2, 70);
pix5 = pixConvertTo32(pix4);
pixRasterop(pix1, 3 * w + 12, 3, w, h, PIX_SRC, pix5, 0, 0); /* 4th */
regTestWritePixAndCheck(rp, pix5, IFF_PNG); /* 40 */
pixaAddPix(pixa, pix5, L_INSERT);
pixDestroy(&pix2);
pixDestroy(&pix3);
/* Invert; this is the final result */
pixInvert(pix4, pix4);
pix5 = pixConvertTo32(pix4);
pixRasterop(pix1, 4 * w + 15, 3, w, h, PIX_SRC, pix5, 0, 0); /* 5th */
regTestWritePixAndCheck(rp, pix5, IFF_PNG); /* 41 */
pixaAddPix(pixa, pix5, L_INSERT);
pixDestroy(&pix1);
pixDestroy(&pix4);
pix1 = pixaDisplayTiledInRows(pixa, 32, 1700, 1.0, 0, 20, 2);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 42 */
pixDisplayWithTitle(pix1, 0, 800, NULL, rp->display);
pixaDestroy(&pixa);
pixDestroy(&pix1);
pixDestroy(&pixs);
return regTestCleanup(rp);
}
int main(int argc,
char **argv)
{
char bufname[256];
l_int32 i, w, h;
l_float32 *mat1, *mat2, *mat3, *mat1i, *mat2i, *mat3i, *matdinv;
l_float32 matd[9], matdi[9];
BOXA *boxa, *boxa2;
PIX *pix, *pixs, *pixb, *pixg, *pixc, *pixcs;
PIX *pixd, *pix1, *pix2, *pix3;
PIXA *pixa;
PTA *ptas, *ptad;
L_REGPARAMS *rp;
if (regTestSetup(argc, argv, &rp))
return 1;
pix = pixRead("feyn.tif");
pixs = pixScale(pix, 0.22, 0.22);
pixDestroy(&pix);
#if ALL
/* Test invertability of sequential. */
fprintf(stderr, "Test invertability of sequential\n");
pixa = pixaCreate(0);
for (i = 0; i < 3; i++) {
pixb = pixAddBorder(pixs, ADDED_BORDER_PIXELS, 0);
MakePtas(i, &ptas, &ptad);
pix1 = pixAffineSequential(pixb, ptad, ptas, 0, 0);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 0,3,6 */
pixaAddPix(pixa, pix1, L_INSERT);
pix2 = pixAffineSequential(pix1, ptas, ptad, 0, 0);
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 1,4,7 */
pixaAddPix(pixa, pix2, L_INSERT);
pixd = pixRemoveBorder(pix2, ADDED_BORDER_PIXELS);
pixXor(pixd, pixd, pixs);
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 2,5,8 */
pixaAddPix(pixa, pixd, L_INSERT);
pixDestroy(&pixb);
ptaDestroy(&ptas);
ptaDestroy(&ptad);
}
pix1 = pixaDisplayTiledInColumns(pixa, 3, 1.0, 20, 3);
pix2 = pixScaleToGray(pix1, 0.2);
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 9 */
pixDisplayWithTitle(pix2, 0, 100, NULL, rp->display);
pixDestroy(&pix1);
pixDestroy(&pix2);
pixaDestroy(&pixa);
#endif
#if ALL
/* Test invertability of sampling */
fprintf(stderr, "Test invertability of sampling\n");
pixa = pixaCreate(0);
for (i = 0; i < 3; i++) {
pixb = pixAddBorder(pixs, ADDED_BORDER_PIXELS, 0);
MakePtas(i, &ptas, &ptad);
pix1 = pixAffineSampledPta(pixb, ptad, ptas, L_BRING_IN_WHITE);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 10,13,16 */
pixaAddPix(pixa, pix1, L_INSERT);
pix2 = pixAffineSampledPta(pix1, ptas, ptad, L_BRING_IN_WHITE);
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 11,14,17 */
pixaAddPix(pixa, pix2, L_INSERT);
pixd = pixRemoveBorder(pix2, ADDED_BORDER_PIXELS);
pixXor(pixd, pixd, pixs);
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 12,15,18 */
pixaAddPix(pixa, pixd, L_INSERT);
pixDestroy(&pixb);
ptaDestroy(&ptas);
ptaDestroy(&ptad);
}
pix1 = pixaDisplayTiledInColumns(pixa, 3, 1.0, 20, 3);
pix2 = pixScaleToGray(pix1, 0.2);
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 19 */
pixDisplayWithTitle(pix2, 200, 100, NULL, rp->display);
pixDestroy(&pix1);
pixDestroy(&pix2);
pixDestroy(&pixs);
pixaDestroy(&pixa);
#endif
#if ALL
/* Test invertability of interpolation on grayscale */
fprintf(stderr, "Test invertability of grayscale interpolation\n");
pix = pixRead("feyn.tif");
pixg = pixScaleToGray3(pix);
pixDestroy(&pix);
pixa = pixaCreate(0);
for (i = 0; i < 3; i++) {
pixb = pixAddBorder(pixg, ADDED_BORDER_PIXELS / 3, 255);
MakePtas(i, &ptas, &ptad);
pix1 = pixAffinePta(pixb, ptad, ptas, L_BRING_IN_WHITE);
regTestWritePixAndCheck(rp, pix1, IFF_JFIF_JPEG); /* 20,23,26 */
pixaAddPix(pixa, pix1, L_INSERT);
pix2 = pixAffinePta(pix1, ptas, ptad, L_BRING_IN_WHITE);
regTestWritePixAndCheck(rp, pix2, IFF_JFIF_JPEG); /* 21,24,27 */
pixaAddPix(pixa, pix2, L_INSERT);
pixd = pixRemoveBorder(pix2, ADDED_BORDER_PIXELS / 3);
pixXor(pixd, pixd, pixg);
pixInvert(pixd, pixd);
regTestWritePixAndCheck(rp, pixd, IFF_JFIF_JPEG); /* 22,25,28 */
pixaAddPix(pixa, pixd, L_INSERT);
pixDestroy(&pixb);
ptaDestroy(&ptas);
ptaDestroy(&ptad);
}
pix1 = pixaDisplayTiledInColumns(pixa, 3, 1.0, 20, 3);
pix2 = pixScale(pix1, 0.2, 0.2);
regTestWritePixAndCheck(rp, pix2, IFF_JFIF_JPEG); /* 29 */
pixDisplayWithTitle(pix2, 400, 100, NULL, rp->display);
pixDestroy(&pix1);
pixDestroy(&pix2);
pixDestroy(&pixg);
pixaDestroy(&pixa);
#endif
#if ALL
/* Test invertability of interpolation on color */
fprintf(stderr, "Test invertability of color interpolation\n");
pixa = pixaCreate(0);
pixc = pixRead("test24.jpg");
pixcs = pixScale(pixc, 0.3, 0.3);
for (i = 0; i < 3; i++) {
pixb = pixAddBorder(pixcs, ADDED_BORDER_PIXELS / 4, 0xffffff00);
MakePtas(i, &ptas, &ptad);
pix1 = pixAffinePta(pixb, ptad, ptas, L_BRING_IN_WHITE);
regTestWritePixAndCheck(rp, pix1, IFF_JFIF_JPEG); /* 30,33,36 */
pixaAddPix(pixa, pix1, L_INSERT);
pix2 = pixAffinePta(pix1, ptas, ptad, L_BRING_IN_WHITE);
regTestWritePixAndCheck(rp, pix2, IFF_JFIF_JPEG); /* 31,34,37 */
pixaAddPix(pixa, pix2, L_INSERT);
pixd = pixRemoveBorder(pix2, ADDED_BORDER_PIXELS / 4);
pixXor(pixd, pixd, pixcs);
pixInvert(pixd, pixd);
regTestWritePixAndCheck(rp, pixd, IFF_JFIF_JPEG); /* 32,35,38 */
pixaAddPix(pixa, pixd, L_INSERT);
pixDestroy(&pixb);
ptaDestroy(&ptas);
ptaDestroy(&ptad);
}
pix1 = pixaDisplayTiledInColumns(pixa, 3, 1.0, 20, 3);
pix2 = pixScale(pix1, 0.25, 0.25);
regTestWritePixAndCheck(rp, pix2, IFF_JFIF_JPEG); /* 39 */
pixDisplayWithTitle(pix2, 600, 100, NULL, rp->display);
pixDestroy(&pix1);
pixDestroy(&pix2);
pixDestroy(&pixc);
pixaDestroy(&pixa);
#endif
#if ALL
/* Comparison between sequential and sampling */
fprintf(stderr, "Compare sequential with sampling\n");
pix = pixRead("feyn.tif");
pixs = pixScale(pix, 0.22, 0.22);
pixDestroy(&pix);
MakePtas(3, &ptas, &ptad);
pixa = pixaCreate(0);
/* Use sequential transforms */
pix1 = pixAffineSequential(pixs, ptas, ptad,
ADDED_BORDER_PIXELS, ADDED_BORDER_PIXELS);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 40 */
pixaAddPix(pixa, pix1, L_INSERT);
/* Use sampled transform */
pix2 = pixAffineSampledPta(pixs, ptas, ptad, L_BRING_IN_WHITE);
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 41 */
pixaAddPix(pixa, pix2, L_COPY);
/* Compare the results */
pixXor(pix2, pix2, pix1);
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 42 */
pixaAddPix(pixa, pix2, L_INSERT);
pix1 = pixaDisplayTiledInColumns(pixa, 3, 1.0, 20, 3);
pix2 = pixScale(pix1, 0.5, 0.5);
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 43 */
pixDisplayWithTitle(pix2, 800, 100, NULL, rp->display);
pixDestroy(&pix1);
pixDestroy(&pix2);
pixDestroy(&pixs);
pixaDestroy(&pixa);
ptaDestroy(&ptas);
ptaDestroy(&ptad);
#endif
#if ALL
/* Test with large distortion */
fprintf(stderr, "Test with large distortion\n");
MakePtas(4, &ptas, &ptad);
pixa = pixaCreate(0);
pix = pixRead("feyn.tif");
pixg = pixScaleToGray6(pix);
pixDestroy(&pix);
pix1 = pixAffineSequential(pixg, ptas, ptad, 0, 0);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 44 */
pixaAddPix(pixa, pix1, L_COPY);
pix2 = pixAffineSampledPta(pixg, ptas, ptad, L_BRING_IN_WHITE);
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 45 */
pixaAddPix(pixa, pix2, L_COPY);
pix3 = pixAffinePta(pixg, ptas, ptad, L_BRING_IN_WHITE);
regTestWritePixAndCheck(rp, pix3, IFF_PNG); /* 46 */
pixaAddPix(pixa, pix3, L_INSERT);
pixXor(pix1, pix1, pix2);
pixInvert(pix1, pix1);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 47 */
pixaAddPix(pixa, pix1, L_INSERT);
pixXor(pix2, pix2, pix3);
pixInvert(pix2, pix2);
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 48 */
pixaAddPix(pixa, pix2, L_INSERT);
pix1 = pixaDisplayTiledInColumns(pixa, 5, 1.0, 20, 3);
pix2 = pixScale(pix1, 0.8, 0.8);
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 49 */
pixDisplayWithTitle(pix2, 1000, 100, NULL, rp->display);
pixDestroy(&pix1);
pixDestroy(&pix2);
pixDestroy(&pixg);
pixaDestroy(&pixa);
ptaDestroy(&ptas);
ptaDestroy(&ptad);
#endif
#if ALL
/* Set up pix and boxa */
fprintf(stderr, "Test affine transforms and inverses on pix and boxa\n");
pixa = pixaCreate(0);
pix = pixRead("lucasta.1.300.tif");
pixTranslate(pix, pix, 70, 0, L_BRING_IN_WHITE);
pix1 = pixCloseBrick(NULL, pix, 14, 5);
pixOpenBrick(pix1, pix1, 1, 2);
boxa = pixConnComp(pix1, NULL, 8);
pixs = pixConvertTo32(pix);
pixGetDimensions(pixs, &w, &h, NULL);
pixc = pixCopy(NULL, pixs);
RenderHashedBoxa(pixc, boxa, 113);
regTestWritePixAndCheck(rp, pixc, IFF_PNG); /* 50 */
pixaAddPix(pixa, pixc, L_INSERT);
pixDestroy(&pix);
pixDestroy(&pix1);
/* Set up an affine transform in matd, and apply it to boxa */
mat1 = createMatrix2dTranslate(SHIFTX, SHIFTY);
mat2 = createMatrix2dScale(SCALEX, SCALEY);
mat3 = createMatrix2dRotate(w / 2, h / 2, ROTATION);
l_productMat3(mat3, mat2, mat1, matd, 3);
boxa2 = boxaAffineTransform(boxa, matd);
/* Set up the inverse transform --> matdi */
mat1i = createMatrix2dTranslate(-SHIFTX, -SHIFTY);
mat2i = createMatrix2dScale(1.0/ SCALEX, 1.0 / SCALEY);
mat3i = createMatrix2dRotate(w / 2, h / 2, -ROTATION);
l_productMat3(mat1i, mat2i, mat3i, matdi, 3);
/* Invert the original affine transform --> matdinv */
affineInvertXform(matd, &matdinv);
if (rp->display) {
fprintf(stderr, " Affine transform, applied to boxa\n");
for (i = 0; i < 9; i++) {
if (i && (i % 3 == 0)) fprintf(stderr, "\n");
fprintf(stderr, " %7.3f ", matd[i]);
}
fprintf(stderr, "\n Inverse transform, by composing inverse parts");
for (i = 0; i < 9; i++) {
if (i % 3 == 0) fprintf(stderr, "\n");
fprintf(stderr, " %7.3f ", matdi[i]);
}
fprintf(stderr, "\n Inverse transform, by inverting affine xform");
for (i = 0; i < 6; i++) {
if (i % 3 == 0) fprintf(stderr, "\n");
fprintf(stderr, " %7.3f ", matdinv[i]);
}
fprintf(stderr, "\n");
}
/* Apply the inverted affine transform --> pixs */
pixd = pixAffine(pixs, matdinv, L_BRING_IN_WHITE);
RenderHashedBoxa(pixd, boxa2, 513);
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 51 */
pixaAddPix(pixa, pixd, L_INSERT);
pix1 = pixaDisplayTiledInColumns(pixa, 2, 1.0, 30, 2);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 52 */
pixDisplayWithTitle(pix1, 1200, 100, NULL, rp->display);
pixDestroy(&pix1);
pixaDestroy(&pixa);
pixDestroy(&pixs);
boxaDestroy(&boxa);
boxaDestroy(&boxa2);
lept_free(mat1);
lept_free(mat2);
lept_free(mat3);
lept_free(mat1i);
lept_free(mat2i);
lept_free(mat3i);
lept_free(matdinv);
#endif
return regTestCleanup(rp);
}
