main(int argc,
char **argv)
{
char *filein;
l_int32 i, n, ns;
BOX *box;
BOXA *boxa, *boxas;
PIX *pixs, *pixt;
PIXA *pixa, *pixas, *pixas2;
static char mainName[] = "sorttest";
if (argc != 2)
exit(ERROR_INT(" Syntax: sorttest filein", mainName, 1));
filein = argv[1];
if ((pixs = pixRead(filein)) == NULL)
exit(ERROR_INT("pixs not made", mainName, 1));
#if 0
boxa = pixConnComp(pixs, NULL, 8);
n = boxaGetCount(boxa);
boxas = boxaSort(boxa, L_SORT_BY_PERIMETER, L_SORT_DECREASING, NULL);
ns = boxaGetCount(boxas);
fprintf(stderr, "Number of cc: n = %d, ns = %d\n", n, ns);
boxaWrite("/tmp/junkboxa.ba", boxas);
for (i = 0; i < n; i++) {
box = boxaGetBox(boxas, i, L_CLONE);
pixRenderBox(pixs, box, 2, L_FLIP_PIXELS);
boxDestroy(&box);
}
pixWrite("/tmp/junkout.png", pixs, IFF_PNG);
boxaDestroy(&boxa);
boxaDestroy(&boxas);
#endif
#if 1
boxa = pixConnComp(pixs, &pixa, 8);
n = pixaGetCount(pixa);
pixas = pixaSort(pixa, L_SORT_BY_Y, L_SORT_INCREASING, NULL, L_CLONE);
ns = pixaGetCount(pixas);
fprintf(stderr, "Number of cc: n = %d, ns = %d\n", n, ns);
pixaWrite("/tmp/junkpixa.pa", pixas);
pixas2 = pixaRead("/tmp/junkpixa.pa");
pixaWrite("/tmp/junkpixa2.pa", pixas2);
pixt = pixaDisplayOnLattice(pixas, 100, 100);
pixWrite("/tmp/junkpix.png", pixt, IFF_PNG);
boxaWrite("/tmp/junkboxa.ba", pixas->boxa);
pixDestroy(&pixt);
pixaDestroy(&pixa);
pixaDestroy(&pixas);
pixaDestroy(&pixas2);
boxaDestroy(&boxa);
#endif
pixDestroy(&pixs);
return 0;
}
main(int argc,
char **argv)
{
l_int32 i, j, w, h;
l_int32 minsum[5] = { 2, 40, 50, 50, 70};
l_int32 skipdist[5] = { 5, 5, 10, 10, 30};
l_int32 delta[5] = { 2, 10, 10, 25, 40};
l_int32 maxbg[5] = {10, 15, 10, 20, 40};
BOX *box1, *box2, *box3, *box4;
BOXA *boxa;
PIX *pixs, *pixc, *pixt, *pixd, *pix32;
PIXA *pixas, *pixad;
L_REGPARAMS *rp;
if (regTestSetup(argc, argv, &rp))
return 1;
/* Generate and save 1 bpp masks */
pixas = pixaCreate(0);
pixs = pixCreate(300, 250, 1);
pixSetAll(pixs);
box1 = boxCreate(50, 0, 140, 25);
box2 = boxCreate(120, 100, 100, 25);
box3 = boxCreate(75, 170, 80, 20);
box4 = boxCreate(150, 80, 25, 70);
pixClearInRect(pixs, box1);
pixaAddPix(pixas, pixs, L_COPY);
pixt = pixRotateOrth(pixs, 1);
pixaAddPix(pixas, pixt, L_INSERT);
pixClearInRect(pixs, box2);
pixaAddPix(pixas, pixs, L_COPY);
pixt = pixRotateOrth(pixs, 1);
pixaAddPix(pixas, pixt, L_INSERT);
pixClearInRect(pixs, box3);
pixaAddPix(pixas, pixs, L_COPY);
pixt = pixRotateOrth(pixs, 1);
pixaAddPix(pixas, pixt, L_INSERT);
pixClearInRect(pixs, box4);
pixaAddPix(pixas, pixs, L_COPY);
pixt = pixRotateOrth(pixs, 1);
pixaAddPix(pixas, pixt, L_INSERT);
boxDestroy(&box1);
boxDestroy(&box2);
boxDestroy(&box3);
boxDestroy(&box4);
pixDestroy(&pixs);
/* Do 5 splittings on each of the 8 masks */
pixad = pixaCreate(0);
for (j = 0; j < 8; j++) {
pixt = pixaGetPix(pixas, j, L_CLONE);
pixGetDimensions(pixt, &w, &h, NULL);
pix32 = pixCreate(w, h, 32);
pixSetAll(pix32);
pixPaintThroughMask(pix32, pixt, 0, 0, 0xc0c0c000);
pixSaveTiled(pix32, pixad, 1, 1, 30, 32);
for (i = 0; i < 5; i++) {
pixc = pixCopy(NULL, pix32);
boxa = pixSplitComponentIntoBoxa(pixt, NULL, minsum[i], skipdist[i],
delta[i], maxbg[i], 0, 1);
/* boxaWriteStream(stderr, boxa); */
pixd = pixBlendBoxaRandom(pixc, boxa, 0.4);
pixRenderBoxaArb(pixd, boxa, 2, 255, 0, 0);
pixSaveTiled(pixd, pixad, 1, 0, 30, 32);
pixDestroy(&pixd);
pixDestroy(&pixc);
boxaDestroy(&boxa);
}
pixDestroy(&pixt);
pixDestroy(&pix32);
}
/* Display results */
pixd = pixaDisplay(pixad, 0, 0);
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 0 */
pixDisplayWithTitle(pixd, 100, 100, NULL, rp->display);
pixDestroy(&pixd);
pixaDestroy(&pixad);
/* Put the 8 masks all together, and split 5 ways */
pixad = pixaCreate(0);
pixs = pixaDisplayOnLattice(pixas, 325, 325);
pixGetDimensions(pixs, &w, &h, NULL);
pix32 = pixCreate(w, h, 32);
pixSetAll(pix32);
pixPaintThroughMask(pix32, pixs, 0, 0, 0xc0c0c000);
pixSaveTiled(pix32, pixad, 1, 1, 30, 32);
for (i = 0; i < 5; i++) {
pixc = pixCopy(NULL, pix32);
boxa = pixSplitIntoBoxa(pixs, minsum[i], skipdist[i],
delta[i], maxbg[i], 0, 1);
/* boxaWriteStream(stderr, boxa); */
pixd = pixBlendBoxaRandom(pixc, boxa, 0.4);
pixRenderBoxaArb(pixd, boxa, 2, 255, 0, 0);
pixSaveTiled(pixd, pixad, 1, 0, 30, 32);
pixDestroy(&pixd);
pixDestroy(&pixc);
boxaDestroy(&boxa);
}
pixDestroy(&pix32);
pixDestroy(&pixs);
/* Display results */
pixd = pixaDisplay(pixad, 0, 0);
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 1 */
pixDisplayWithTitle(pixd, 600, 100, NULL, rp->display);
pixDestroy(&pixd);
pixaDestroy(&pixad);
pixaDestroy(&pixas);
regTestCleanup(rp);
return 0;
}
/* ----------------------------------------------------- */
void ProcessDigits(l_int32 index)
{
char rootname[8] = "digit5";
char buf[64];
l_int32 i, nc, ns, same;
NUMA *na1;
PIX *pix1, *pix2, *pix3, *pix4, *pix5, *pix6;
PIXA *pixa1, *pixa2, *pixa3;
/* Read the unfiltered, unscaled pixa of twenty-five 5s */
snprintf(buf, sizeof(buf), "digits/%s.orig-25.pa", rootname);
pixa1 = pixaRead(buf);
/* Number and show the input images */
snprintf(buf, sizeof(buf), "/tmp/lept/digit/%s.orig-num", rootname);
PixaDisplayNumbered(pixa1, buf);
/* Remove some of them */
na1 = numaCreateFromString(removeset);
pixaRemoveSelected(pixa1, na1);
numaDestroy(&na1);
snprintf(buf, sizeof(buf), "/tmp/lept/digit/%s.filt.pa", rootname);
pixaWrite(buf, pixa1);
/* Number and show the filtered images */
snprintf(buf, sizeof(buf), "/tmp/lept/digit/%s.filt-num", rootname);
PixaDisplayNumbered(pixa1, buf);
/* Extract the largest c.c., clip to the foreground,
* and scale the result to a fixed size. */
nc = pixaGetCount(pixa1);
pixa2 = pixaCreate(nc);
for (i = 0; i < nc; i++) {
pix1 = pixaGetPix(pixa1, i, L_CLONE);
/* A threshold of 140 gives reasonable results */
pix2 = pixThresholdToBinary(pix1, 140);
/* Join nearly touching pieces */
pix3 = pixCloseSafeBrick(NULL, pix2, 5, 5);
/* Take the largest (by area) connected component */
pix4 = pixFilterComponentBySize(pix3, 0, L_SELECT_BY_AREA, 8, NULL);
/* Extract the original 1 bpp pixels that have been
* covered by the closing operation */
pixAnd(pix4, pix4, pix2);
/* Grab the result as an image with no surrounding whitespace */
pixClipToForeground(pix4, &pix5, NULL);
/* Rescale the result to the canonical size */
pix6 = pixScaleToSize(pix5, 20, 30);
pixaAddPix(pixa2, pix6, L_INSERT);
pixDestroy(&pix1);
pixDestroy(&pix2);
pixDestroy(&pix3);
pixDestroy(&pix4);
pixDestroy(&pix5);
}
/* Add the index (a "5") in the text field of each pix; save pixa2 */
snprintf(buf, sizeof(buf), "%d", index);
for (i = 0; i < nc; i++) {
pix1 = pixaGetPix(pixa2, i, L_CLONE);
pixSetText(pix1, buf);
pixDestroy(&pix1);
}
snprintf(buf, sizeof(buf), "/tmp/lept/digit/%s.comp.pa", rootname);
pixaWrite(buf, pixa2);
/* Number and show the resulting binary templates */
snprintf(buf, sizeof(buf), "/tmp/lept/digit/%s.comp-num", rootname);
PixaDisplayNumbered(pixa2, buf);
/* Save the binary templates as a packed tiling (tiff g4).
* This is the most efficient way to represent the templates. */
pix1 = pixaDisplayOnLattice(pixa2, 20, 30, NULL, NULL);
pixDisplay(pix1, 1000, 500);
snprintf(buf, sizeof(buf), "/tmp/lept/digit/%s.comp.tif", rootname);
pixWrite(buf, pix1, IFF_TIFF_G4);
/* The number of templates is in the pix text string; check it. */
pix2 = pixRead(buf);
if (sscanf(pixGetText(pix2), "n = %d", &ns) != 1)
fprintf(stderr, "Failed to read the number of templates!\n");
if (ns != nc)
fprintf(stderr, "(stored = %d) != (actual number = %d)\n", ns, nc);
/* Reconstruct the pixa of templates from the tiled compressed
* image, and verify that the resulting pixa is the same. */
pixa3 = pixaMakeFromTiledPix(pix1, 20, 30, 0, 0, NULL);
pixaEqual(pixa2, pixa3, 0, NULL, &same);
if (!same)
fprintf(stderr, "Pixa are not the same!\n");
pixDestroy(&pix1);
pixDestroy(&pix2);
pixaDestroy(&pixa1);
pixaDestroy(&pixa2);
pixaDestroy(&pixa3);
}
main(int argc,
char **argv)
{
l_int32 ws, hs;
BOX *box;
BOXA *boxa;
PIX *pixs, *pixc, *pix32, *pixt, *pixd;
PIXA *pixat, *pixas, *pixac;
static char mainName[] = "pixadisp_reg";
if (argc != 1)
exit(ERROR_INT(" Syntax: pixadisp_reg", mainName, 1));
if ((pixs = pixRead("feyn.tif")) == NULL)
exit(ERROR_INT("pixs not made", mainName, 1));
box = boxCreate(683, 799, 970, 479);
pixc = pixClipRectangle(pixs, box, NULL);
boxDestroy(&box);
pixDisplayWrite(pixc, 1);
if ((pix32 = pixRead("marge.jpg")) == NULL)
exit(ERROR_INT("pix32 not made", mainName, 1));
/* Generate pixas from pixs and pixac from pixc */
boxa = pixConnComp(pixs, &pixat, 8);
pixas = pixaSelectBySize(pixat, 60, 60, L_SELECT_IF_BOTH,
L_SELECT_IF_LTE, NULL);
pixaDestroy(&pixat);
boxaDestroy(&boxa);
boxa = pixConnComp(pixc, &pixac, 8);
boxaDestroy(&boxa);
/* pixaDisplay() */
pixGetDimensions(pixs, &ws, &hs, NULL);
pixd = pixaDisplay(pixas, ws, hs);
pixDisplayWrite(pixd, 1);
pixDestroy(&pixd);
/* pixaDisplayRandomCmap() */
pixd = pixaDisplayRandomCmap(pixas, ws, hs); /* black bg */
pixDisplayWrite(pixd, 1);
pixcmapResetColor(pixGetColormap(pixd), 0, 255, 255, 255); /* white bg */
pixDisplayWrite(pixd, 1);
pixDestroy(&pixd);
/* pixaDisplayOnLattice() */
pixd = pixaDisplayOnLattice(pixac, 50, 50);
pixDisplayWrite(pixd, 1);
pixDestroy(&pixd);
/* pixaDisplayUnsplit() */
pixat = pixaSplitPix(pix32, 5, 7, 10, 0x0000ff00);
pixd = pixaDisplayUnsplit(pixat, 5, 7, 10, 0x00ff0000);
pixDisplayWrite(pixd, 1);
pixaDestroy(&pixat);
pixDestroy(&pixd);
/* pixaDisplayTiled() */
pixd = pixaDisplayTiled(pixac, 1000, 0, 10);
pixDisplayWrite(pixd, 1);
pixDestroy(&pixd);
/* pixaDisplayTiledInRows() */
pixd = pixaDisplayTiledInRows(pixac, 1, 1000, 1.0, 0, 10, 2);
pixDisplayWrite(pixd, 1);
pixDestroy(&pixd);
/* pixaDisplayTiledAndScaled() */
pixd = pixaDisplayTiledAndScaled(pixac, 1, 25, 20, 0, 5, 0);
pixDisplayWrite(pixd, 1);
pixDestroy(&pixd);
pixat = pixaCreate(10);
pixd = pixRankFilter(pix32, 8, 8, 0.5);
pixaAddPix(pixat, pixd, L_INSERT);
pixt = pixScale(pix32, 0.5, 0.5);
pixd = pixRankFilter(pixt, 8, 8, 0.5);
pixaAddPix(pixat, pixd, L_INSERT);
pixDestroy(&pixt);
pixt = pixScale(pix32, 0.25, 0.25);
pixd = pixRankFilter(pixt, 8, 8, 0.5);
pixaAddPix(pixat, pixd, L_INSERT);
pixDestroy(&pixt);
pixd = pixaDisplayTiledAndScaled(pixat, 32, 500, 1, 0, 25, 0);
pixDisplayWrite(pixd, 1);
pixaDestroy(&pixat);
pixDestroy(&pixd);
pixaDestroy(&pixas);
pixaDestroy(&pixac);
pixDestroy(&pixs);
pixDestroy(&pixc);
pixDestroy(&pix32);
pixDisplayMultiple("/tmp/junk_write_display*");
return 0;
}
