Pix Pix::ThresholdTo4bpp(int nlevels, int cmapflag)
{
if(IsEmpty())
return Pix();
PIX *dPix = pixThresholdTo4bpp(pix, nlevels, cmapflag);
if(!dPix)
return Pix();
return Pix(&dPix);
} // END Pix::ThresholdTo4bpp()
l_int32 main(int argc,
char **argv)
{
l_int32 irval, igval, ibval;
l_float32 rval, gval, bval, fract, fgfract;
L_BMF *bmf;
BOX *box;
BOXA *boxa;
FPIX *fpix;
PIX *pixs, *pix1, *pix2, *pix3, *pix4, *pix5, *pix6, *pix7;
PIX *pix8, *pix9, *pix10, *pix11, *pix12, *pix13, *pix14, *pix15;
PIXA *pixa;
L_REGPARAMS *rp;
if (regTestSetup(argc, argv, &rp))
return 1;
pixa = pixaCreate(0);
pixs = pixRead("breviar38.150.jpg");
/* pixs = pixRead("breviar32.150.jpg"); */
pixaAddPix(pixa, pixs, L_CLONE);
regTestWritePixAndCheck(rp, pixs, IFF_JFIF_JPEG); /* 0 */
pixDisplayWithTitle(pixs, 0, 0, "Input image", rp->display);
/* Extract the blue component, which is small in all the text
* regions, including in the highlight color region */
pix1 = pixGetRGBComponent(pixs, COLOR_BLUE);
pixaAddPix(pixa, pix1, L_CLONE);
regTestWritePixAndCheck(rp, pix1, IFF_JFIF_JPEG); /* 1 */
pixDisplayWithTitle(pix1, 200, 0, "Blue component", rp->display);
/* Do a background normalization, with the background set to
* approximately 200 */
pix2 = pixBackgroundNormSimple(pix1, NULL, NULL);
pixaAddPix(pixa, pix2, L_COPY);
regTestWritePixAndCheck(rp, pix2, IFF_JFIF_JPEG); /* 2 */
pixDisplayWithTitle(pix2, 400, 0, "BG normalized to 200", rp->display);
/* Do a linear transform on the gray pixels, with 50 going to
* black and 160 going to white. 50 is sufficiently low to
* make both the red and black print quite dark. Quantize
* to a few equally spaced gray levels. This is the image
* to which highlight color will be applied. */
pixGammaTRC(pix2, pix2, 1.0, 50, 160);
pix3 = pixThresholdOn8bpp(pix2, 7, 1);
pixaAddPix(pixa, pix3, L_CLONE);
regTestWritePixAndCheck(rp, pix3, IFF_JFIF_JPEG); /* 3 */
pixDisplayWithTitle(pix3, 600, 0, "Basic quantized with white bg",
rp->display);
/* Identify the regions of red text. First, make a mask
* consisting of all pixels such that (R-B)/B is larger
* than 2.0. This will have all the red, plus a lot of
* the dark pixels. */
fpix = pixComponentFunction(pixs, 1.0, 0.0, -1.0, 0.0, 0.0, 1.0);
pix4 = fpixThresholdToPix(fpix, 2.0);
pixInvert(pix4, pix4); /* red plus some dark text */
pixaAddPix(pixa, pix4, L_CLONE);
regTestWritePixAndCheck(rp, pix4, IFF_PNG); /* 4 */
pixDisplayWithTitle(pix4, 800, 0, "Red plus dark pixels", rp->display);
/* Make a mask consisting of all the red and background pixels */
pix5 = pixGetRGBComponent(pixs, COLOR_RED);
pix6 = pixThresholdToBinary(pix5, 128);
pixInvert(pix6, pix6); /* red plus background (white) */
/* Intersect the two masks to get a mask consisting of pixels
* that are almost certainly red. This is the seed. */
pix7 = pixAnd(NULL, pix4, pix6); /* red only (seed) */
pixaAddPix(pixa, pix7, L_COPY);
regTestWritePixAndCheck(rp, pix7, IFF_PNG); /* 5 */
pixDisplayWithTitle(pix7, 0, 600, "Seed for red color", rp->display);
/* Make the clipping mask by thresholding the image with
* the background cleaned to white. */
pix8 = pixThresholdToBinary(pix2, 230); /* mask */
pixaAddPix(pixa, pix8, L_CLONE);
regTestWritePixAndCheck(rp, pix8, IFF_PNG); /* 6 */
pixDisplayWithTitle(pix8, 200, 600, "Clipping mask for red components",
rp->display);
/* Fill into the mask from the seed */
pixSeedfillBinary(pix7, pix7, pix8, 8); /* filled: red plus touching */
regTestWritePixAndCheck(rp, pix7, IFF_PNG); /* 7 */
pixDisplayWithTitle(pix7, 400, 600, "Red component mask filled",
rp->display);
/* Remove long horizontal and vertical lines from the filled result */
pix9 = pixMorphSequence(pix7, "o40.1", 0);
pixSubtract(pix7, pix7, pix9); /* remove long horizontal lines */
pixDestroy(&pix9);
pix9 = pixMorphSequence(pix7, "o1.40", 0);
pixSubtract(pix7, pix7, pix9); /* remove long vertical lines */
/* Close the regions to be colored */
pix10 = pixMorphSequence(pix7, "c5.1", 0);
pixaAddPix(pixa, pix10, L_CLONE);
regTestWritePixAndCheck(rp, pix10, IFF_PNG); /* 8 */
pixDisplayWithTitle(pix10, 600, 600,
"Components defining regions allowing coloring",
rp->display);
/* Sanity check on amount to be colored. Only accept images
* with less than 10% of all the pixels with highlight color */
pixForegroundFraction(pix10, &fgfract);
if (fgfract >= 0.10) {
L_INFO("too much highlighting: fract = %6.3f; removing it\n",
rp->testname, fgfract);
pixClearAll(pix10);
pixSetPixel(pix10, 0, 0, 1);
}
/* Get the bounding boxes of the regions to be colored */
boxa = pixConnCompBB(pix10, 8);
/* Get a color to paint that is representative of the
* actual highlight color in the image. Scale each
* color component up from the average by an amount necessary
* to saturate the red. Then divide the green and
* blue components by 2.0. */
pixGetAverageMaskedRGB(pixs, pix7, 0, 0, 1, L_MEAN_ABSVAL,
&rval, &gval, &bval);
fract = 255.0 / rval;
irval = lept_roundftoi(fract * rval);
igval = lept_roundftoi(fract * gval / 2.0);
ibval = lept_roundftoi(fract * bval / 2.0);
fprintf(stderr, "(r,g,b) = (%d,%d,%d)\n", irval, igval, ibval);
/* Color the quantized gray version in the selected regions */
pix11 = pixColorGrayRegions(pix3, boxa, L_PAINT_DARK, 220, irval,
igval, ibval);
pixaAddPix(pixa, pix11, L_CLONE);
regTestWritePixAndCheck(rp, pix11, IFF_PNG); /* 9 */
pixDisplayWithTitle(pix11, 800, 600, "Final colored result", rp->display);
pixaAddPix(pixa, pixs, L_CLONE);
/* Test colorization on gray and cmapped gray */
pix12 = pixColorGrayRegions(pix2, boxa, L_PAINT_DARK, 220, 0, 255, 0);
pixaAddPix(pixa, pix12, L_CLONE);
regTestWritePixAndCheck(rp, pix12, IFF_PNG); /* 10 */
pixDisplayWithTitle(pix12, 900, 600, "Colorizing boxa gray", rp->display);
box = boxCreate(200, 200, 250, 350);
pix13 = pixCopy(NULL, pix2);
pixColorGray(pix13, box, L_PAINT_DARK, 220, 0, 0, 255);
pixaAddPix(pixa, pix13, L_CLONE);
regTestWritePixAndCheck(rp, pix13, IFF_PNG); /* 11 */
pixDisplayWithTitle(pix13, 1000, 600, "Colorizing box gray", rp->display);
pix14 = pixThresholdTo4bpp(pix2, 6, 1);
pix15 = pixColorGrayRegions(pix14, boxa, L_PAINT_DARK, 220, 0, 0, 255);
pixaAddPix(pixa, pix15, L_CLONE);
regTestWritePixAndCheck(rp, pix15, IFF_PNG); /* 12 */
pixDisplayWithTitle(pix15, 1100, 600, "Colorizing boxa cmap", rp->display);
pixColorGrayCmap(pix14, box, L_PAINT_DARK, 0, 255, 255);
pixaAddPix(pixa, pix14, L_CLONE);
regTestWritePixAndCheck(rp, pix14, IFF_PNG); /* 13 */
pixDisplayWithTitle(pix14, 1200, 600, "Colorizing box cmap", rp->display);
boxDestroy(&box);
/* Generate a pdf of the intermediate results */
lept_mkdir("lept");
L_INFO("Writing to /tmp/lept/colorize.pdf\n", rp->testname);
pixaConvertToPdf(pixa, 90, 1.0, 0, 0, "Colorizing highlighted text",
"/tmp/lept/colorize.pdf");
pixaDestroy(&pixa);
fpixDestroy(&fpix);
boxDestroy(&box);
boxaDestroy(&boxa);
pixDestroy(&pixs);
pixDestroy(&pix1);
pixDestroy(&pix2);
pixDestroy(&pix3);
pixDestroy(&pix4);
pixDestroy(&pix5);
pixDestroy(&pix6);
pixDestroy(&pix7);
pixDestroy(&pix8);
pixDestroy(&pix9);
pixDestroy(&pix10);
pixDestroy(&pix11);
pixDestroy(&pix12);
pixDestroy(&pix13);
pixDestroy(&pix14);
pixDestroy(&pix15);
/* Test the color detector */
pixa = pixaCreate(7);
bmf = bmfCreate("./fonts", 4);
pix1 = TestForRedColor(rp, "brev06.75.jpg", 1, bmf); /* 14 */
pixaAddPix(pixa, pix1, L_INSERT);
pix1 = TestForRedColor(rp, "brev10.75.jpg", 0, bmf); /* 15 */
pixaAddPix(pixa, pix1, L_INSERT);
pix1 = TestForRedColor(rp, "brev14.75.jpg", 1, bmf); /* 16 */
pixaAddPix(pixa, pix1, L_INSERT);
pix1 = TestForRedColor(rp, "brev20.75.jpg", 1, bmf); /* 17 */
pixaAddPix(pixa, pix1, L_INSERT);
pix1 = TestForRedColor(rp, "brev36.75.jpg", 0, bmf); /* 18 */
pixaAddPix(pixa, pix1, L_INSERT);
pix1 = TestForRedColor(rp, "brev53.75.jpg", 1, bmf); /* 19 */
pixaAddPix(pixa, pix1, L_INSERT);
pix1 = TestForRedColor(rp, "brev56.75.jpg", 1, bmf); /* 20 */
pixaAddPix(pixa, pix1, L_INSERT);
/* Generate a pdf of the color detector results */
L_INFO("Writing to /tmp/lept/colordetect.pdf\n", rp->testname);
pixaConvertToPdf(pixa, 45, 1.0, 0, 0, "Color detection",
"/tmp/lept/colordetect.pdf");
pixaDestroy(&pixa);
bmfDestroy(&bmf);
return regTestCleanup(rp);
}
main(int argc,
char **argv)
{
char *errorstr;
l_int32 same, error;
PIX *pixs1, *pixs2, *pixs4, *pixs8, *pixs16, *pixs32, *pixd;
PIX *pixc2, *pixc4, *pixc8;
PIX *pixt1, *pixt2, *pixt3, *pixt4, *pixt5, *pixt6;
PIXCMAP *cmap;
SARRAY *sa;
static char mainName[] = "convert_reg";
if (argc != 1)
exit(ERROR_INT(" Syntax: convert_rt", mainName, 1));
if ((pixs1 = pixRead("test1.png")) == NULL)
exit(ERROR_INT("pixs1 not made", mainName, 1));
if ((pixs2 = pixRead("dreyfus2.png")) == NULL)
exit(ERROR_INT("pixs2 not made", mainName, 1));
if ((pixc2 = pixRead("weasel2.4c.png")) == NULL)
exit(ERROR_INT("pixc2 not made", mainName, 1));
if ((pixs4 = pixRead("weasel4.16g.png")) == NULL)
exit(ERROR_INT("pixs4 not made", mainName, 1));
if ((pixc4 = pixRead("weasel4.11c.png")) == NULL)
exit(ERROR_INT("pixc4 not made", mainName, 1));
if ((pixs8 = pixRead("karen8.jpg")) == NULL)
exit(ERROR_INT("pixs8 not made", mainName, 1));
if ((pixc8 = pixRead("weasel8.240c.png")) == NULL)
exit(ERROR_INT("pixc8 not made", mainName, 1));
if ((pixs16 = pixRead("test16.tif")) == NULL)
exit(ERROR_INT("pixs16 not made", mainName, 1));
if ((pixs32 = pixRead("marge.jpg")) == NULL)
exit(ERROR_INT("pixs32 not made", mainName, 1));
error = FALSE;
sa = sarrayCreate(0);
/* Conversion: 1 bpp --> 8 bpp --> 1 bpp */
pixt1 = pixConvertTo8(pixs1, FALSE);
pixt2 = pixThreshold8(pixt1, 1, 0, 0);
pixEqual(pixs1, pixt2, &same);
if (!same) {
pixDisplayWithTitle(pixs1, 100, 100, "1 bpp, no cmap", DFLAG);
pixDisplayWithTitle(pixt2, 500, 100, "1 bpp, no cmap", DFLAG);
error = TRUE;
sarrayAddString(sa, (char *)"conversion 1 bpp <==> 8 bpp", L_COPY);
} else
fprintf(stderr, "OK: conversion 1 bpp <==> 8 bpp\n");
pixDestroy(&pixt1);
pixDestroy(&pixt2);
/* Conversion: 2 bpp --> 8 bpp --> 2 bpp */
/* Conversion: 2 bpp cmap --> 8 bpp cmap --> 2 bpp cmap */
pixt1 = pixRemoveColormap(pixs2, REMOVE_CMAP_TO_GRAYSCALE);
pixt2 = pixThreshold8(pixt1, 2, 4, 0);
pixt3 = pixConvertTo8(pixt2, FALSE);
pixt4 = pixThreshold8(pixt3, 2, 4, 0);
pixEqual(pixt2, pixt4, &same);
if (!same) {
pixDisplayWithTitle(pixt2, 100, 100, "2 bpp, no cmap", DFLAG);
pixDisplayWithTitle(pixt4, 500, 100, "2 bpp, no cmap", DFLAG);
error = TRUE;
sarrayAddString(sa, (char *)"conversion 2 bpp <==> 8 bpp", L_COPY);
} else
fprintf(stderr, "OK: conversion 2 bpp <==> 8 bpp\n");
pixt5 = pixConvertTo8(pixs2, TRUE);
pixt6 = pixThreshold8(pixt5, 2, 4, 1);
pixEqual(pixs2, pixt6, &same);
if (!same) {
pixDisplayWithTitle(pixs2, 100, 100, "2 bpp, cmap", DFLAG);
pixDisplayWithTitle(pixt6, 500, 100, "2 bpp, cmap", DFLAG);
error = TRUE;
sarrayAddString(sa, (char *)"conversion 2 bpp <==> 8 bpp; cmap",
L_COPY);
} else
fprintf(stderr, "OK: conversion 2 bpp <==> 8 bpp; cmap\n");
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
pixDestroy(&pixt5);
pixDestroy(&pixt6);
/* Conversion: 4 bpp --> 8 bpp --> 4 bpp */
/* Conversion: 4 bpp cmap --> 8 bpp cmap --> 4 bpp cmap */
pixt1 = pixRemoveColormap(pixs4, REMOVE_CMAP_TO_GRAYSCALE);
pixt2 = pixThreshold8(pixt1, 4, 16, 0);
pixt3 = pixConvertTo8(pixt2, FALSE);
pixt4 = pixThreshold8(pixt3, 4, 16, 0);
pixEqual(pixt2, pixt4, &same);
if (!same) {
pixDisplayWithTitle(pixt2, 100, 100, "4 bpp, no cmap", DFLAG);
pixDisplayWithTitle(pixt4, 500, 100, "4 bpp, no cmap", DFLAG);
error = TRUE;
sarrayAddString(sa, (char *)"conversion 4 bpp <==> 8 bpp", L_COPY);
} else
fprintf(stderr, "OK: conversion 4 bpp <==> 8 bpp\n");
pixt5 = pixConvertTo8(pixs4, TRUE);
pixt6 = pixThreshold8(pixt5, 4, 16, 1);
pixEqual(pixs4, pixt6, &same);
if (!same) {
pixDisplayWithTitle(pixs4, 100, 100, "4 bpp, cmap", DFLAG);
pixDisplayWithTitle(pixt6, 500, 100, "4 bpp, cmap", DFLAG);
error = TRUE;
sarrayAddString(sa, (char *)"conversion 4 bpp <==> 8 bpp, cmap",
L_COPY);
} else
fprintf(stderr, "OK: conversion 4 bpp <==> 8 bpp; cmap\n");
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
pixDestroy(&pixt5);
pixDestroy(&pixt6);
/* Conversion: 2 bpp cmap --> 2 bpp --> 2 bpp cmap --> 2 bpp */
pixt1 = pixRemoveColormap(pixs2, REMOVE_CMAP_TO_GRAYSCALE);
pixt2 = pixConvertGrayToColormap(pixt1);
pixt3 = pixRemoveColormap(pixt2, REMOVE_CMAP_TO_GRAYSCALE);
pixt4 = pixThresholdTo2bpp(pixt3, 4, 1);
pixEqual(pixt1, pixt4, &same);
if (!same) {
pixDisplayWithTitle(pixs2, 100, 100, "2 bpp, cmap", DFLAG);
pixDisplayWithTitle(pixt4, 500, 100, "2 bpp, cmap", DFLAG);
error = TRUE;
sarrayAddString(sa, (char *)"conversion 2 bpp <==> 2 bpp", L_COPY);
} else
fprintf(stderr, "OK: conversion 2 bpp <==> 2 bpp\n");
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
/* Conversion: 4 bpp cmap --> 4 bpp --> 4 bpp cmap --> 4 bpp */
pixt1 = pixRemoveColormap(pixs4, REMOVE_CMAP_TO_GRAYSCALE);
pixt2 = pixConvertGrayToColormap(pixt1);
pixt3 = pixRemoveColormap(pixt2, REMOVE_CMAP_TO_GRAYSCALE);
pixt4 = pixThresholdTo4bpp(pixt3, 16, 1);
pixEqual(pixt1, pixt4, &same);
if (!same) {
pixDisplayWithTitle(pixs4, 100, 100, "4 bpp, cmap", DFLAG);
pixDisplayWithTitle(pixt4, 500, 100, "4 bpp, cmap", DFLAG);
error = TRUE;
sarrayAddString(sa, (char *)"conversion 4 bpp <==> 4 bpp", L_COPY);
} else
fprintf(stderr, "OK: conversion 4 bpp <==> 4 bpp\n");
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
/* Conversion: 8 bpp --> 8 bpp cmap --> 8 bpp */
pixt1 = pixConvertTo8(pixs8, TRUE);
pixt2 = pixConvertTo8(pixt1, FALSE);
pixEqual(pixs8, pixt2, &same);
if (!same) {
pixDisplayWithTitle(pixt1, 100, 100, "8 bpp, cmap", DFLAG);
pixDisplayWithTitle(pixt2, 500, 100, "8 bpp, no cmap", DFLAG);
error = TRUE;
sarrayAddString(sa, (char *)"conversion 8 bpp <==> 8 bpp", L_COPY);
} else
fprintf(stderr, "OK: conversion 8 bpp <==> 8 bpp\n");
pixDestroy(&pixt1);
pixDestroy(&pixt2);
/* Conversion: 2 bpp cmap --> 32 bpp --> 2 bpp cmap */
pixt1 = pixConvertTo8(pixc2, TRUE);
pixt2 = pixConvertTo32(pixt1);
pixt3 = pixConvertTo32(pixc2);
pixEqual(pixt2, pixt3, &same);
if (!same) {
pixDisplayWithTitle(pixt2, 100, 100, "32 bpp", DFLAG);
pixDisplayWithTitle(pixt3, 500, 100, "32 bpp", DFLAG);
error = TRUE;
sarrayAddString(sa, (char *)"conversion 2 bpp ==> 32 bpp", L_COPY);
} else
fprintf(stderr, "OK: conversion 2 bpp <==> 32 bpp\n");
cmap = pixGetColormap(pixc2);
pixt4 = pixOctcubeQuantFromCmap(pixt3, cmap, 2, 4, L_EUCLIDEAN_DISTANCE);
pixEqual(pixc2, pixt4, &same);
if (!same) {
pixDisplayWithTitle(pixc2, 100, 100, "4 bpp, cmap", DFLAG);
pixDisplayWithTitle(pixt4, 500, 100, "4 bpp, cmap", DFLAG);
error = TRUE;
sarrayAddString(sa, (char *)"conversion 2 bpp <==> 32 bpp", L_COPY);
} else
fprintf(stderr, "OK: conversion 2 bpp <==> 32 bpp\n");
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
/* Conversion: 4 bpp cmap --> 32 bpp --> 4 bpp cmap */
pixt1 = pixConvertTo8(pixc4, TRUE);
pixt2 = pixConvertTo32(pixt1);
pixt3 = pixConvertTo32(pixc4);
pixEqual(pixt2, pixt3, &same);
if (!same) {
pixDisplayWithTitle(pixt2, 100, 100, "32 bpp", DFLAG);
pixDisplayWithTitle(pixt3, 500, 100, "32 bpp", DFLAG);
error = TRUE;
sarrayAddString(sa, (char *)"conversion 4 bpp ==> 32 bpp", L_COPY);
} else
fprintf(stderr, "OK: conversion 4 bpp <==> 32 bpp\n");
cmap = pixGetColormap(pixc4);
pixt4 = pixOctcubeQuantFromCmap(pixt3, cmap, 2, 4, L_EUCLIDEAN_DISTANCE);
pixEqual(pixc4, pixt4, &same);
if (!same) {
pixDisplayWithTitle(pixc4, 100, 100, "4 bpp, cmap", DFLAG);
pixDisplayWithTitle(pixt4, 500, 100, "4 bpp, cmap", DFLAG);
error = TRUE;
sarrayAddString(sa, (char *)"conversion 4 bpp <==> 32 bpp", L_COPY);
} else
fprintf(stderr, "OK: conversion 4 bpp <==> 32 bpp\n");
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
/* Conversion: 8 bpp --> 32 bpp --> 8 bpp */
pixt1 = pixConvertTo32(pixs8);
pixt2 = pixConvertTo8(pixt1, FALSE);
pixEqual(pixs8, pixt2, &same);
if (!same) {
pixDisplayWithTitle(pixs8, 100, 100, "8 bpp", DFLAG);
pixDisplayWithTitle(pixt2, 500, 100, "8 bpp", DFLAG);
error = TRUE;
sarrayAddString(sa, (char *)"conversion 8 bpp <==> 32 bpp", L_COPY);
} else
fprintf(stderr, "OK: conversion 8 bpp <==> 32 bpp\n");
pixDestroy(&pixt1);
pixDestroy(&pixt2);
/* Conversion: 8 bpp --> 16 bpp --> 8 bpp */
pixt1 = pixConvert8To16(pixs8, 8);
pixt2 = pixConvertTo8(pixt1, FALSE);
pixEqual(pixs8, pixt2, &same);
if (!same) {
pixDisplayWithTitle(pixs8, 100, 100, "8 bpp", DFLAG);
pixDisplayWithTitle(pixt2, 500, 100, "8 bpp", DFLAG);
error = TRUE;
sarrayAddString(sa, (char *)"conversion 8 bpp <==> 16 bpp", L_COPY);
} else
fprintf(stderr, "OK: conversion 8 bpp <==> 16 bpp\n");
pixDestroy(&pixt1);
pixDestroy(&pixt2);
/* Conversion: 16 bpp --> 8 bpp --> 16 bpp */
pixt1 = pixConvert16To8(pixs16, 1);
pixt2 = pixConvertTo16(pixt1);
pixWrite("/tmp/junkpix.png", pixt2, IFF_PNG);
pixEqual(pixs16, pixt2, &same);
if (!same) {
pixDisplayWithTitle(pixs16, 100, 100, "16 bpp", DFLAG);
pixDisplayWithTitle(pixt2, 500, 100, "16 bpp", DFLAG);
error = TRUE;
sarrayAddString(sa, (char *)"conversion 16 bpp <==> 8 bpp", L_COPY);
} else
fprintf(stderr, "OK: conversion 16 bpp <==> 8 bpp\n");
pixDestroy(&pixt1);
pixDestroy(&pixt2);
/* Conversion: 8 bpp cmap --> 32 bpp --> 8 bpp cmap */
/* Required to go to level 6 of octcube to get identical result */
pixt1 = pixConvertTo32(pixc8);
cmap = pixGetColormap(pixc8);
pixt2 = pixOctcubeQuantFromCmap(pixt1, cmap, 2, 6, L_EUCLIDEAN_DISTANCE);
pixEqual(pixc8, pixt2, &same);
if (!same) {
pixDisplayWithTitle(pixc8, 100, 100, "8 bpp cmap", DFLAG);
pixDisplayWithTitle(pixt2, 500, 100, "8 bpp cmap", DFLAG);
error = TRUE;
sarrayAddString(sa, (char *)"conversion 8 bpp cmap <==> 32 bpp cmap",
L_COPY);
} else
fprintf(stderr, "OK: conversion 8 bpp <==> 32 bpp\n");
pixDestroy(&pixt1);
pixDestroy(&pixt2);
/* Summarize results */
if (error == FALSE)
fprintf(stderr, "No errors found\n");
else {
errorstr = sarrayToString(sa, 1);
fprintf(stderr, "Errors in the following:\n %s", errorstr);
lept_free(errorstr);
}
sarrayDestroy(&sa);
pixDestroy(&pixs1);
pixDestroy(&pixs2);
pixDestroy(&pixs4);
pixDestroy(&pixc2);
pixDestroy(&pixc4);
pixDestroy(&pixs8);
pixDestroy(&pixc8);
pixDestroy(&pixs16);
pixDestroy(&pixs32);
return 0;
}
main(int argc,
char **argv)
{
l_int32 errorfound, same;
PIX *pixs, *pixt1, *pixt2, *pixt3, *pixt4;
static char mainName[] = "equal_reg";
if (argc != 1)
exit(ERROR_INT(" Syntax: equal_reg", mainName, 1));
errorfound = FALSE;
pixs = pixRead(FEYN1);
pixWrite("/tmp/junkfeyn.png", pixs, IFF_PNG);
pixt1 = pixRead("/tmp/junkfeyn.png");
pixEqual(pixs, pixt1, &same);
if (same)
L_INFO("equal for feyn1", mainName);
else {
L_INFO("FAILURE for equal for feyn1", mainName);
errorfound = TRUE;
}
pixDestroy(&pixs);
pixDestroy(&pixt1);
pixs = pixRead(DREYFUS2);
pixt1 = pixRemoveColormap(pixs, REMOVE_CMAP_BASED_ON_SRC);
pixWrite("/tmp/junkdrey2-1.png", pixt1, IFF_PNG);
pixt2 = pixRemoveColormap(pixs, REMOVE_CMAP_TO_FULL_COLOR);
pixWrite("/tmp/junkdrey2-2.png", pixt2, IFF_PNG);
pixt3 = pixOctreeQuantNumColors(pixt2, 64, 1);
pixWrite("/tmp/junkdrey2-3.png", pixt3, IFF_PNG);
pixt4 = pixConvertRGBToColormap(pixt2, 1);
pixWrite("/tmp/junkdrey2-4.png", pixt4, IFF_PNG);
pixEqual(pixs, pixt1, &same);
if (same)
L_INFO("equal for pixt1 of dreyfus2", mainName);
else {
L_INFO("FAILURE for pixt1 of dreyfus2", mainName);
errorfound = TRUE;
}
pixEqual(pixs, pixt2, &same);
if (same)
L_INFO("equal for pixt2 of dreyfus2", mainName);
else {
L_INFO("FAILURE for pixt2 of dreyfus2", mainName);
errorfound = TRUE;
}
pixEqual(pixs, pixt3, &same);
if (same)
L_INFO("equal for pixt3 of dreyfus2", mainName);
else {
L_INFO("FAILURE for pixt3 of dreyfus2", mainName);
errorfound = TRUE;
}
pixEqual(pixs, pixt4, &same);
if (same)
L_INFO("equal for pixt4 of dreyfus2", mainName);
else {
L_INFO("FAILURE for pixt4 of dreyfus2", mainName);
errorfound = TRUE;
}
pixDestroy(&pixs);
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
pixs = pixRead(DREYFUS4);
pixt1 = pixRemoveColormap(pixs, REMOVE_CMAP_BASED_ON_SRC);
pixWrite("/tmp/junkdrey4-1.png", pixt1, IFF_PNG);
pixt2 = pixRemoveColormap(pixs, REMOVE_CMAP_TO_FULL_COLOR);
pixWrite("/tmp/junkdrey4-2.png", pixt2, IFF_PNG);
pixt3 = pixOctreeQuantNumColors(pixt2, 256, 1);
pixWrite("/tmp/junkdrey4-3.png", pixt3, IFF_PNG);
pixt4 = pixConvertRGBToColormap(pixt2, 1);
pixWrite("/tmp/junkdrey4-4.png", pixt4, IFF_PNG);
pixEqual(pixs, pixt1, &same);
if (same)
L_INFO("equal for pixt1 of dreyfus4", mainName);
else {
L_INFO("FAILURE for pixt1 of dreyfus4", mainName);
errorfound = TRUE;
}
pixEqual(pixs, pixt2, &same);
if (same)
L_INFO("equal for pixt2 of dreyfus4", mainName);
else {
L_INFO("FAILURE for pixt2 of dreyfus4", mainName);
errorfound = TRUE;
}
pixEqual(pixs, pixt3, &same);
if (same)
L_INFO("equal for pixt3 of dreyfus4", mainName);
else {
L_INFO("FAILURE for pixt3 of dreyfus4", mainName);
errorfound = TRUE;
}
pixEqual(pixs, pixt4, &same);
if (same)
L_INFO("equal for pixt4 of dreyfus4", mainName);
else {
L_INFO("FAILURE for pixt4 of dreyfus4", mainName);
errorfound = TRUE;
}
pixDestroy(&pixs);
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
pixs = pixRead(DREYFUS8);
pixt1 = pixRemoveColormap(pixs, REMOVE_CMAP_BASED_ON_SRC);
pixWrite("/tmp/junkdrey8-1.png", pixt1, IFF_PNG);
pixt2 = pixRemoveColormap(pixs, REMOVE_CMAP_TO_FULL_COLOR);
pixWrite("/tmp/junkdrey8-2.png", pixt2, IFF_PNG);
pixt3 = pixConvertRGBToColormap(pixt2, 1);
pixWrite("/tmp/junkdrey8-3.png", pixt3, IFF_PNG);
pixEqual(pixs, pixt1, &same);
if (same)
L_INFO("equal for pixt1 of dreyfus8", mainName);
else {
L_INFO("FAILURE for pixt1 of dreyfus8", mainName);
errorfound = TRUE;
}
pixEqual(pixs, pixt2, &same);
if (same)
L_INFO("equal for pixt2 of dreyfus8", mainName);
else {
L_INFO("FAILURE for pixt2 of dreyfus8", mainName);
errorfound = TRUE;
}
pixDestroy(&pixs);
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixDestroy(&pixt3);
pixs = pixRead(KAREN8);
pixt1 = pixThresholdTo4bpp(pixs, 16, 1);
pixWrite("/tmp/junkkar8-1.png", pixt1, IFF_PNG);
pixt2 = pixRemoveColormap(pixt1, REMOVE_CMAP_BASED_ON_SRC);
pixWrite("/tmp/junkkar8-2.png", pixt2, IFF_PNG);
pixt3 = pixRemoveColormap(pixt1, REMOVE_CMAP_TO_FULL_COLOR);
pixWrite("/tmp/junkkar8-3.png", pixt3, IFF_PNG);
pixt4 = pixConvertRGBToColormap(pixt3, 1);
pixEqual(pixt1, pixt2, &same);
if (same)
L_INFO("equal for pixt2 of karen8", mainName);
else {
L_INFO("FAILURE for pixt2 of karen8", mainName);
errorfound = TRUE;
}
pixEqual(pixt1, pixt3, &same);
if (same)
L_INFO("equal for pixt3 of karen8", mainName);
else {
L_INFO("FAILURE for pixt3 of karen8", mainName);
errorfound = TRUE;
}
pixEqual(pixt1, pixt4, &same);
if (same)
L_INFO("equal for pixt4 of karen8", mainName);
else {
L_INFO("FAILURE for pixt4 of karen8", mainName);
errorfound = TRUE;
}
pixDestroy(&pixs);
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
pixs = pixRead(MARGE32);
pixt1 = pixOctreeQuantNumColors(pixs, 32, 0);
pixWrite("/tmp/junkmarge8-1.png", pixt1, IFF_PNG);
pixt2 = pixRemoveColormap(pixt1, REMOVE_CMAP_TO_FULL_COLOR);
pixWrite("/tmp/junkmarge8-2.png", pixt2, IFF_PNG);
pixt3 = pixConvertRGBToColormap(pixt2, 1);
pixWrite("/tmp/junkmarge8-3.png", pixt3, IFF_PNG);
pixt4 = pixOctreeQuantNumColors(pixt2, 64, 0);
pixWrite("/tmp/junkmarge8-4.png", pixt4, IFF_PNG);
pixEqual(pixt1, pixt2, &same);
if (same)
L_INFO("equal for pixt2 of marge32", mainName);
else {
L_INFO("FAILURE for pixt2 of marge32", mainName);
errorfound = TRUE;
}
pixEqual(pixt1, pixt3, &same);
if (same)
L_INFO("equal for pixt3 of marge32", mainName);
else {
L_INFO("FAILURE for pixt3 of marge32", mainName);
errorfound = TRUE;
}
pixEqual(pixt1, pixt4, &same);
if (same)
L_INFO("equal for pixt4 of marge32", mainName);
else {
L_INFO("FAILURE for pixt4 of marge32", mainName);
errorfound = TRUE;
}
pixDestroy(&pixs);
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
if (errorfound)
L_INFO("FAILURE in processing this test", mainName);
else
L_INFO("SUCCESS in processing this test", mainName);
exit(0);
}
int main(int argc,
char **argv)
{
l_int32 i, j, sindex, wb, hb, ws, hs, delx, dely, x, y, y0;
PIX *pixs, *pixb, *pix1, *pix2;
PIXA *pixa;
PIXCMAP *cmap;
setLeptDebugOK(1);
lept_mkdir("lept/blend");
pixa = pixaCreate(0);
pixs = pixRead("rabi.png"); /* blendee */
pixb = pixRead("weasel4.11c.png"); /* blender */
/* Fade the blender */
pixcmapShiftIntensity(pixGetColormap(pixb), FADE_FRACTION);
/* Downscale the input */
wb = pixGetWidth(pixb);
hb = pixGetHeight(pixb);
pix1 = pixScaleToGray4(pixs);
/* Threshold to 5 levels, 4 bpp */
ws = pixGetWidth(pix1);
hs = pixGetHeight(pix1);
pix2 = pixThresholdTo4bpp(pix1, 5, 1);
pixaAddPix(pixa, pix2, L_COPY);
pixaAddPix(pixa, pixb, L_COPY);
cmap = pixGetColormap(pix2);
pixcmapWriteStream(stderr, cmap);
/* Overwrite the white pixels (at sindex in pix2) */
pixcmapGetIndex(cmap, 255, 255, 255, &sindex);
/* Blend the weasel 20 times */
delx = ws / NX;
dely = hs / NY;
for (i = 0; i < NY; i++) {
y = 20 + i * dely;
if (y >= hs + hb)
continue;
for (j = 0; j < NX; j++) {
x = 30 + j * delx;
y0 = y;
if (j & 1) {
y0 = y + dely / 2;
if (y0 >= hs + hb)
continue;
}
if (x >= ws + wb)
continue;
pixBlendCmap(pix2, pixb, x, y0, sindex);
}
}
pixaAddPix(pixa, pix2, L_COPY);
cmap = pixGetColormap(pix2);
pixcmapWriteStream(stderr, cmap);
fprintf(stderr, "Writing to: /tmp/lept/blend/blendcmap.pdf\n");
pixaConvertToPdf(pixa, 0, 1.0, L_FLATE_ENCODE, 0, "cmap-blendtest",
"/tmp/lept/blend/blendcmap.pdf");
pixDestroy(&pixs);
pixDestroy(&pixb);
pixDestroy(&pix1);
pixDestroy(&pix2);
pixaDestroy(&pixa);
return 0;
}
int main(int argc,
char **argv)
{
l_int32 index;
l_uint32 val32;
BOX *box, *box1, *box2, *box3, *box4, *box5;
BOXA *boxa;
L_KERNEL *kel;
PIX *pixs, *pixg, *pixb, *pixd, *pixt, *pix1, *pix2, *pix3, *pix4;
PIXA *pixa;
PIXCMAP *cmap;
L_REGPARAMS *rp;
if (regTestSetup(argc, argv, &rp))
return 1;
pixa = pixaCreate(0);
/* Color non-white pixels on RGB */
pixs = pixRead("lucasta-frag.jpg");
pixt = pixConvert8To32(pixs);
box = boxCreate(120, 30, 200, 200);
pixColorGray(pixt, box, L_PAINT_DARK, 220, 0, 0, 255);
regTestWritePixAndCheck(rp, pixt, IFF_JFIF_JPEG); /* 0 */
pixaAddPix(pixa, pixt, L_COPY);
pixColorGray(pixt, NULL, L_PAINT_DARK, 220, 255, 100, 100);
regTestWritePixAndCheck(rp, pixt, IFF_JFIF_JPEG); /* 1 */
pixaAddPix(pixa, pixt, L_INSERT);
boxDestroy(&box);
/* Color non-white pixels on colormap */
pixt = pixThresholdTo4bpp(pixs, 6, 1);
box = boxCreate(120, 30, 200, 200);
pixColorGray(pixt, box, L_PAINT_DARK, 220, 0, 0, 255);
regTestWritePixAndCheck(rp, pixt, IFF_PNG); /* 2 */
pixaAddPix(pixa, pixt, L_COPY);
pixColorGray(pixt, NULL, L_PAINT_DARK, 220, 255, 100, 100);
regTestWritePixAndCheck(rp, pixt, IFF_PNG); /* 3 */
pixaAddPix(pixa, pixt, L_INSERT);
boxDestroy(&box);
/* Color non-black pixels on RGB */
pixt = pixConvert8To32(pixs);
box = boxCreate(120, 30, 200, 200);
pixColorGray(pixt, box, L_PAINT_LIGHT, 20, 0, 0, 255);
regTestWritePixAndCheck(rp, pixt, IFF_PNG); /* 4 */
pixaAddPix(pixa, pixt, L_COPY);
pixColorGray(pixt, NULL, L_PAINT_LIGHT, 80, 255, 100, 100);
regTestWritePixAndCheck(rp, pixt, IFF_PNG); /* 5 */
pixaAddPix(pixa, pixt, L_INSERT);
boxDestroy(&box);
/* Color non-black pixels on colormap */
pixt = pixThresholdTo4bpp(pixs, 6, 1);
box = boxCreate(120, 30, 200, 200);
pixColorGray(pixt, box, L_PAINT_LIGHT, 20, 0, 0, 255);
regTestWritePixAndCheck(rp, pixt, IFF_PNG); /* 6 */
pixaAddPix(pixa, pixt, L_COPY);
pixColorGray(pixt, NULL, L_PAINT_LIGHT, 20, 255, 100, 100);
regTestWritePixAndCheck(rp, pixt, IFF_PNG); /* 7 */
pixaAddPix(pixa, pixt, L_INSERT);
boxDestroy(&box);
/* Add highlight color to RGB */
pixt = pixConvert8To32(pixs);
box = boxCreate(507, 5, 385, 45);
pixg = pixClipRectangle(pixs, box, NULL);
pixb = pixThresholdToBinary(pixg, 180);
pixInvert(pixb, pixb);
pixDisplayWrite(pixb, 1);
composeRGBPixel(50, 0, 250, &val32);
pixPaintThroughMask(pixt, pixb, box->x, box->y, val32);
boxDestroy(&box);
pixDestroy(&pixg);
pixDestroy(&pixb);
box = boxCreate(236, 107, 262, 40);
pixg = pixClipRectangle(pixs, box, NULL);
pixb = pixThresholdToBinary(pixg, 180);
pixInvert(pixb, pixb);
composeRGBPixel(250, 0, 50, &val32);
pixPaintThroughMask(pixt, pixb, box->x, box->y, val32);
boxDestroy(&box);
pixDestroy(&pixg);
pixDestroy(&pixb);
box = boxCreate(222, 208, 247, 43);
pixg = pixClipRectangle(pixs, box, NULL);
pixb = pixThresholdToBinary(pixg, 180);
pixInvert(pixb, pixb);
composeRGBPixel(60, 250, 60, &val32);
pixPaintThroughMask(pixt, pixb, box->x, box->y, val32);
regTestWritePixAndCheck(rp, pixt, IFF_PNG); /* 8 */
pixaAddPix(pixa, pixt, L_INSERT);
boxDestroy(&box);
pixDestroy(&pixg);
pixDestroy(&pixb);
/* Add highlight color to colormap */
pixt = pixThresholdTo4bpp(pixs, 5, 1);
cmap = pixGetColormap(pixt);
pixcmapGetIndex(cmap, 255, 255, 255, &index);
box = boxCreate(507, 5, 385, 45);
pixSetSelectCmap(pixt, box, index, 50, 0, 250);
boxDestroy(&box);
box = boxCreate(236, 107, 262, 40);
pixSetSelectCmap(pixt, box, index, 250, 0, 50);
boxDestroy(&box);
box = boxCreate(222, 208, 247, 43);
pixSetSelectCmap(pixt, box, index, 60, 250, 60);
regTestWritePixAndCheck(rp, pixt, IFF_PNG); /* 9 */
pixaAddPix(pixa, pixt, L_INSERT);
boxDestroy(&box);
/* Paint lines on RGB */
pixt = pixConvert8To32(pixs);
pixRenderLineArb(pixt, 450, 20, 850, 320, 5, 200, 50, 125);
pixRenderLineArb(pixt, 30, 40, 440, 40, 5, 100, 200, 25);
box = boxCreate(70, 80, 300, 245);
pixRenderBoxArb(pixt, box, 3, 200, 200, 25);
regTestWritePixAndCheck(rp, pixt, IFF_JFIF_JPEG); /* 10 */
pixaAddPix(pixa, pixt, L_INSERT);
boxDestroy(&box);
/* Paint lines on colormap */
pixt = pixThresholdTo4bpp(pixs, 5, 1);
pixRenderLineArb(pixt, 450, 20, 850, 320, 5, 200, 50, 125);
pixRenderLineArb(pixt, 30, 40, 440, 40, 5, 100, 200, 25);
box = boxCreate(70, 80, 300, 245);
pixRenderBoxArb(pixt, box, 3, 200, 200, 25);
regTestWritePixAndCheck(rp, pixt, IFF_PNG); /* 11 */
pixaAddPix(pixa, pixt, L_INSERT);
boxDestroy(&box);
/* Blend lines on RGB */
pixt = pixConvert8To32(pixs);
pixRenderLineBlend(pixt, 450, 20, 850, 320, 5, 200, 50, 125, 0.35);
pixRenderLineBlend(pixt, 30, 40, 440, 40, 5, 100, 200, 25, 0.35);
box = boxCreate(70, 80, 300, 245);
pixRenderBoxBlend(pixt, box, 3, 200, 200, 25, 0.6);
regTestWritePixAndCheck(rp, pixt, IFF_JFIF_JPEG); /* 12 */
pixaAddPix(pixa, pixt, L_INSERT);
boxDestroy(&box);
/* Colorize gray on cmapped image. */
pix1 = pixRead("lucasta.150.jpg");
pix2 = pixThresholdTo4bpp(pix1, 7, 1);
box1 = boxCreate(73, 206, 140, 27);
pixColorGrayCmap(pix2, box1, L_PAINT_LIGHT, 130, 207, 43);
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 13 */
pixaAddPix(pixa, pix2, L_COPY);
if (rp->display)
pixPrintStreamInfo(stderr, pix2, "One box added");
box2 = boxCreate(255, 404, 197, 25);
pixColorGrayCmap(pix2, box2, L_PAINT_LIGHT, 230, 67, 119);
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 14 */
pixaAddPix(pixa, pix2, L_COPY);
if (rp->display)
pixPrintStreamInfo(stderr, pix2, "Two boxes added");
box3 = boxCreate(122, 756, 224, 22);
pixColorGrayCmap(pix2, box3, L_PAINT_DARK, 230, 67, 119);
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 15 */
pixaAddPix(pixa, pix2, L_COPY);
if (rp->display)
pixPrintStreamInfo(stderr, pix2, "Three boxes added");
box4 = boxCreate(11, 780, 147, 22);
pixColorGrayCmap(pix2, box4, L_PAINT_LIGHT, 70, 137, 229);
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 16 */
pixaAddPix(pixa, pix2, L_COPY);
if (rp->display)
pixPrintStreamInfo(stderr, pix2, "Four boxes added");
box5 = boxCreate(163, 605, 78, 22);
pixColorGrayCmap(pix2, box5, L_PAINT_LIGHT, 70, 137, 229);
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 17 */
pixaAddPix(pixa, pix2, L_INSERT);
if (rp->display)
pixPrintStreamInfo(stderr, pix2, "Five boxes added");
pixDestroy(&pix1);
boxDestroy(&box1);
boxDestroy(&box2);
boxDestroy(&box3);
boxDestroy(&box4);
boxDestroy(&box5);
pixDestroy(&pixs);
/* Make a gray image and identify the fg pixels (val > 230) */
pixs = pixRead("feyn-fract.tif");
pix1 = pixConvertTo8(pixs, 0);
kel = makeGaussianKernel(2, 2, 1.5, 1.0);
pix2 = pixConvolve(pix1, kel, 8, 1);
pix3 = pixThresholdToBinary(pix2, 230);
boxa = pixConnComp(pix3, NULL, 8);
pixDestroy(&pixs);
pixDestroy(&pix1);
pixDestroy(&pix3);
kernelDestroy(&kel);
/* Color the individual components in the gray image */
pix4 = pixColorGrayRegions(pix2, boxa, L_PAINT_DARK, 230, 255, 0, 0);
regTestWritePixAndCheck(rp, pix4, IFF_PNG); /* 18 */
pixaAddPix(pixa, pix4, L_INSERT);
pixDisplayWithTitle(pix4, 0, 0, NULL, rp->display);
/* Threshold to 10 levels of gray */
pix3 = pixThresholdOn8bpp(pix2, 10, 1);
regTestWritePixAndCheck(rp, pix3, IFF_PNG); /* 19 */
pixaAddPix(pixa, pix3, L_COPY);
/* Color the individual components in the cmapped image */
pix4 = pixColorGrayRegions(pix3, boxa, L_PAINT_DARK, 230, 255, 0, 0);
regTestWritePixAndCheck(rp, pix4, IFF_PNG); /* 20 */
pixaAddPix(pixa, pix4, L_INSERT);
pixDisplayWithTitle(pix4, 0, 100, NULL, rp->display);
boxaDestroy(&boxa);
/* Color the entire gray image (not component-wise) */
pixColorGray(pix2, NULL, L_PAINT_DARK, 230, 255, 0, 0);
regTestWritePixAndCheck(rp, pix2, IFF_PNG); /* 21 */
pixaAddPix(pixa, pix2, L_INSERT);
/* Color the entire cmapped image (not component-wise) */
pixColorGray(pix3, NULL, L_PAINT_DARK, 230, 255, 0, 0);
regTestWritePixAndCheck(rp, pix3, IFF_PNG); /* 22 */
pixaAddPix(pixa, pix3, L_INSERT);
/* Reconstruct cmapped images */
pixd = ReconstructByValue(rp, "weasel2.4c.png");
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 23 */
pixaAddPix(pixa, pixd, L_INSERT);
pixd = ReconstructByValue(rp, "weasel4.11c.png");
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 24 */
pixaAddPix(pixa, pixd, L_INSERT);
pixd = ReconstructByValue(rp, "weasel8.240c.png");
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 25 */
pixaAddPix(pixa, pixd, L_INSERT);
/* Fake reconstruct cmapped images, with one color into a band */
pixd = FakeReconstructByBand(rp, "weasel2.4c.png");
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 26 */
pixaAddPix(pixa, pixd, L_INSERT);
pixd = FakeReconstructByBand(rp, "weasel4.11c.png");
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 27 */
pixaAddPix(pixa, pixd, L_INSERT);
pixd = FakeReconstructByBand(rp, "weasel8.240c.png");
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 28 */
pixaAddPix(pixa, pixd, L_INSERT);
/* If in testing mode, make a pdf */
if (rp->display) {
pixaConvertToPdf(pixa, 100, 1.0, L_FLATE_ENCODE, 0,
"Colorize and paint", "/tmp/lept/regout/paint.pdf");
L_INFO("Output pdf: /tmp/lept/regout/paint.pdf\n", rp->testname);
}
pixaDestroy(&pixa);
return regTestCleanup(rp);
}
int main(int argc,
char **argv)
{
char buffer[512];
char *tempfile1, *tempfile2;
l_uint8 *data;
l_int32 i, j, w, h, seq, ret, same;
size_t nbytes;
const char *title;
BOX *box;
BOXA *boxa1, *boxa2;
L_BYTEA *ba;
L_PDF_DATA *lpd;
PIX *pix1, *pix2, *pix3, *pix4, *pix5, *pix6;
PIX *pixs, *pixt, *pixg, *pixgc, *pixc;
static char mainName[] = "pdfiotest";
if (argc != 1)
return ERROR_INT("syntax: pdfiotest", mainName, 1);
l_pdfSetDateAndVersion(0);
lept_mkdir("lept/pdf");
#if 1
/* --------------- Single image tests ------------------- */
fprintf(stderr, "\n*** Writing single images as pdf files\n");
convertToPdf("weasel2.4c.png", L_FLATE_ENCODE, 0, "/tmp/lept/pdf/file01.pdf",
0, 0, 72, "weasel2.4c.png", NULL, 0);
convertToPdf("test24.jpg", L_JPEG_ENCODE, 0, "/tmp/lept/pdf/file02.pdf",
0, 0, 72, "test24.jpg", NULL, 0);
convertToPdf("feyn.tif", L_G4_ENCODE, 0, "/tmp/lept/pdf/file03.pdf",
0, 0, 300, "feyn.tif", NULL, 0);
pixs = pixRead("feyn.tif");
pixConvertToPdf(pixs, L_G4_ENCODE, 0, "/tmp/lept/pdf/file04.pdf", 0, 0, 300,
"feyn.tif", NULL, 0);
pixDestroy(&pixs);
pixs = pixRead("test24.jpg");
pixConvertToPdf(pixs, L_JPEG_ENCODE, 5, "/tmp/lept/pdf/file05.pdf",
0, 0, 72, "test24.jpg", NULL, 0);
pixDestroy(&pixs);
pixs = pixRead("feyn.tif");
pixt = pixScaleToGray2(pixs);
pixWrite("/tmp/lept/pdf/feyn8.png", pixt, IFF_PNG);
convertToPdf("/tmp/lept/pdf/feyn8.png", L_JPEG_ENCODE, 0,
"/tmp/lept/pdf/file06.pdf", 0, 0, 150, "feyn8.png", NULL, 0);
pixDestroy(&pixs);
pixDestroy(&pixt);
convertToPdf("weasel4.16g.png", L_FLATE_ENCODE, 0,
"/tmp/lept/pdf/file07.pdf", 0, 0, 30,
"weasel4.16g.png", NULL, 0);
pixs = pixRead("test24.jpg");
pixg = pixConvertTo8(pixs, 0);
box = boxCreate(100, 100, 100, 100);
pixc = pixClipRectangle(pixs, box, NULL);
pixgc = pixClipRectangle(pixg, box, NULL);
pixWrite("/tmp/lept/pdf/pix32.jpg", pixc, IFF_JFIF_JPEG);
pixWrite("/tmp/lept/pdf/pix8.jpg", pixgc, IFF_JFIF_JPEG);
convertToPdf("/tmp/lept/pdf/pix32.jpg", L_FLATE_ENCODE, 0,
"/tmp/lept/pdf/file08.pdf", 0, 0, 72, "pix32.jpg", NULL, 0);
convertToPdf("/tmp/lept/pdf/pix8.jpg", L_FLATE_ENCODE, 0,
"/tmp/lept/pdf/file09.pdf", 0, 0, 72, "pix8.jpg", NULL, 0);
pixDestroy(&pixs);
pixDestroy(&pixg);
pixDestroy(&pixc);
pixDestroy(&pixgc);
boxDestroy(&box);
#endif
#if 1
/* --------------- Multiple image tests ------------------- */
fprintf(stderr, "\n*** Writing multiple images as single page pdf files\n");
pix1 = pixRead("feyn-fract.tif");
pix2 = pixRead("weasel8.240c.png");
/* l_pdfSetDateAndVersion(0); */
/* First, write the 1 bpp image through the mask onto the weasels */
for (i = 0; i < 5; i++) {
for (j = 0; j < 10; j++) {
seq = (i == 0 && j == 0) ? L_FIRST_IMAGE : L_NEXT_IMAGE;
title = (i == 0 && j == 0) ? "feyn-fract.tif" : NULL;
pixConvertToPdf(pix2, L_FLATE_ENCODE, 0, NULL, 100 * j,
100 * i, 70, title, &lpd, seq);
}
}
pixConvertToPdf(pix1, L_G4_ENCODE, 0, "/tmp/lept/pdf/file10.pdf", 0, 0, 80,
NULL, &lpd, L_LAST_IMAGE);
/* Now, write the 1 bpp image over the weasels */
l_pdfSetG4ImageMask(0);
for (i = 0; i < 5; i++) {
for (j = 0; j < 10; j++) {
seq = (i == 0 && j == 0) ? L_FIRST_IMAGE : L_NEXT_IMAGE;
title = (i == 0 && j == 0) ? "feyn-fract.tif" : NULL;
pixConvertToPdf(pix2, L_FLATE_ENCODE, 0, NULL, 100 * j,
100 * i, 70, title, &lpd, seq);
}
}
pixConvertToPdf(pix1, L_G4_ENCODE, 0, "/tmp/lept/pdf/file11.pdf", 0, 0, 80,
NULL, &lpd, L_LAST_IMAGE);
l_pdfSetG4ImageMask(1);
pixDestroy(&pix1);
pixDestroy(&pix2);
#endif
#if 1
/* -------- pdf convert segmented with no image regions -------- */
fprintf(stderr, "\n*** Writing segmented images without image regions\n");
pix1 = pixRead("rabi.png");
pix2 = pixScaleToGray2(pix1);
pixWrite("/tmp/lept/pdf/rabi8.jpg", pix2, IFF_JFIF_JPEG);
pix3 = pixThresholdTo4bpp(pix2, 16, 1);
pixWrite("/tmp/lept/pdf/rabi4.png", pix3, IFF_PNG);
pixDestroy(&pix1);
pixDestroy(&pix2);
pixDestroy(&pix3);
/* 1 bpp input */
convertToPdfSegmented("rabi.png", 300, L_G4_ENCODE, 128, NULL, 0, 0,
NULL, "/tmp/lept/pdf/file12.pdf");
convertToPdfSegmented("rabi.png", 300, L_JPEG_ENCODE, 128, NULL, 0, 0,
NULL, "/tmp/lept/pdf/file13.pdf");
convertToPdfSegmented("rabi.png", 300, L_FLATE_ENCODE, 128, NULL, 0, 0,
NULL, "/tmp/lept/pdf/file14.pdf");
/* 8 bpp input, no cmap */
convertToPdfSegmented("/tmp/lept/pdf/rabi8.jpg", 150, L_G4_ENCODE, 128,
NULL, 0, 0, NULL, "/tmp/lept/pdf/file15.pdf");
convertToPdfSegmented("/tmp/lept/pdf/rabi8.jpg", 150, L_JPEG_ENCODE, 128,
NULL, 0, 0, NULL, "/tmp/lept/pdf/file16.pdf");
convertToPdfSegmented("/tmp/lept/pdf/rabi8.jpg", 150, L_FLATE_ENCODE, 128,
NULL, 0, 0, NULL, "/tmp/lept/pdf/file17.pdf");
/* 4 bpp input, cmap */
convertToPdfSegmented("/tmp/lept/pdf/rabi4.png", 150, L_G4_ENCODE, 128,
NULL, 0, 0, NULL, "/tmp/lept/pdf/file18.pdf");
convertToPdfSegmented("/tmp/lept/pdf/rabi4.png", 150, L_JPEG_ENCODE, 128,
NULL, 0, 0, NULL, "/tmp/lept/pdf/file19.pdf");
convertToPdfSegmented("/tmp/lept/pdf/rabi4.png", 150, L_FLATE_ENCODE, 128,
NULL, 0, 0, NULL, "/tmp/lept/pdf/file20.pdf");
#endif
#if 1
/* ---------- pdf convert segmented with image regions ---------- */
fprintf(stderr, "\n*** Writing segmented images with image regions\n");
/* Get the image region(s) for rabi.png. There are two
* small bogus regions at the top, but we'll keep them for
* the demonstration. */
pix1 = pixRead("rabi.png");
pixSetResolution(pix1, 300, 300);
pixGetDimensions(pix1, &w, &h, NULL);
pix2 = pixGenerateHalftoneMask(pix1, NULL, NULL, NULL);
pix3 = pixMorphSequence(pix2, "c20.1 + c1.20", 0);
boxa1 = pixConnComp(pix3, NULL, 8);
boxa2 = boxaTransform(boxa1, 0, 0, 0.5, 0.5);
pixDestroy(&pix1);
pixDestroy(&pix2);
pixDestroy(&pix3);
/* 1 bpp input */
convertToPdfSegmented("rabi.png", 300, L_G4_ENCODE, 128, boxa1,
0, 0.25, NULL, "/tmp/lept/pdf/file21.pdf");
convertToPdfSegmented("rabi.png", 300, L_JPEG_ENCODE, 128, boxa1,
0, 0.25, NULL, "/tmp/lept/pdf/file22.pdf");
convertToPdfSegmented("rabi.png", 300, L_FLATE_ENCODE, 128, boxa1,
0, 0.25, NULL, "/tmp/lept/pdf/file23.pdf");
/* 8 bpp input, no cmap */
convertToPdfSegmented("/tmp/lept/pdf/rabi8.jpg", 150, L_G4_ENCODE, 128,
boxa2, 0, 0.5, NULL, "/tmp/lept/pdf/file24.pdf");
convertToPdfSegmented("/tmp/lept/pdf/rabi8.jpg", 150, L_JPEG_ENCODE, 128,
boxa2, 0, 0.5, NULL, "/tmp/lept/pdf/file25.pdf");
convertToPdfSegmented("/tmp/lept/pdf/rabi8.jpg", 150, L_FLATE_ENCODE, 128,
boxa2, 0, 0.5, NULL, "/tmp/lept/pdf/file26.pdf");
/* 4 bpp input, cmap */
convertToPdfSegmented("/tmp/lept/pdf/rabi4.png", 150, L_G4_ENCODE, 128,
boxa2, 0, 0.5, NULL, "/tmp/lept/pdf/file27.pdf");
convertToPdfSegmented("/tmp/lept/pdf/rabi4.png", 150, L_JPEG_ENCODE, 128,
boxa2, 0, 0.5, NULL, "/tmp/lept/pdf/file28.pdf");
convertToPdfSegmented("/tmp/lept/pdf/rabi4.png", 150, L_FLATE_ENCODE, 128,
boxa2, 0, 0.5, NULL, "/tmp/lept/pdf/file29.pdf");
/* 4 bpp input, cmap, data output */
data = NULL;
convertToPdfDataSegmented("/tmp/lept/pdf/rabi4.png", 150, L_G4_ENCODE,
128, boxa2, 0, 0.5, NULL, &data, &nbytes);
l_binaryWrite("/tmp/lept/pdf/file30.pdf", "w", data, nbytes);
lept_free(data);
convertToPdfDataSegmented("/tmp/lept/pdf/rabi4.png", 150, L_JPEG_ENCODE,
128, boxa2, 0, 0.5, NULL, &data, &nbytes);
l_binaryWrite("/tmp/lept/pdf/file31.pdf", "w", data, nbytes);
lept_free(data);
convertToPdfDataSegmented("/tmp/lept/pdf/rabi4.png", 150, L_FLATE_ENCODE,
128, boxa2, 0, 0.5, NULL, &data, &nbytes);
l_binaryWrite("/tmp/lept/pdf/file32.pdf", "w", data, nbytes);
lept_free(data);
boxaDestroy(&boxa1);
boxaDestroy(&boxa2);
#endif
#if 1
/* -------- pdf convert segmented from color image -------- */
fprintf(stderr, "\n*** Writing color segmented images\n");
pix1 = pixRead("candelabrum.011.jpg");
pix2 = pixScale(pix1, 3.0, 3.0);
pixWrite("/tmp/lept/pdf/candelabrum3.jpg", pix2, IFF_JFIF_JPEG);
GetImageMask(pix2, 200, &boxa1, "/tmp/lept/pdf/seg1.jpg");
convertToPdfSegmented("/tmp/lept/pdf/candelabrum3.jpg", 200, L_G4_ENCODE,
100, boxa1, 0, 0.25, NULL,
"/tmp/lept/pdf/file33.pdf");
convertToPdfSegmented("/tmp/lept/pdf/candelabrum3.jpg", 200, L_JPEG_ENCODE,
100, boxa1, 0, 0.25, NULL,
"/tmp/lept/pdf/file34.pdf");
convertToPdfSegmented("/tmp/lept/pdf/candelabrum3.jpg", 200, L_FLATE_ENCODE,
100, boxa1, 0, 0.25, NULL,
"/tmp/lept/pdf/file35.pdf");
pixDestroy(&pix1);
pixDestroy(&pix2);
boxaDestroy(&boxa1);
pix1 = pixRead("lion-page.00016.jpg");
pix2 = pixScale(pix1, 3.0, 3.0);
pixWrite("/tmp/lept/pdf/lion16.jpg", pix2, IFF_JFIF_JPEG);
pix3 = pixRead("lion-mask.00016.tif");
boxa1 = pixConnComp(pix3, NULL, 8);
boxa2 = boxaTransform(boxa1, 0, 0, 3.0, 3.0);
convertToPdfSegmented("/tmp/lept/pdf/lion16.jpg", 200, L_G4_ENCODE,
190, boxa2, 0, 0.5, NULL, "/tmp/lept/pdf/file36.pdf");
convertToPdfSegmented("/tmp/lept/pdf/lion16.jpg", 200, L_JPEG_ENCODE,
190, boxa2, 0, 0.5, NULL, "/tmp/lept/pdf/file37.pdf");
convertToPdfSegmented("/tmp/lept/pdf/lion16.jpg", 200, L_FLATE_ENCODE,
190, boxa2, 0, 0.5, NULL, "/tmp/lept/pdf/file38.pdf");
/* Quantize the non-image part and flate encode.
* This is useful because it results in a smaller file than
* when you flate-encode the un-quantized non-image regions. */
pix4 = pixScale(pix3, 3.0, 3.0); /* higher res mask, for combining */
pix5 = QuantizeNonImageRegion(pix2, pix4, 12);
pixWrite("/tmp/lept/pdf/lion16-quant.png", pix5, IFF_PNG);
convertToPdfSegmented("/tmp/lept/pdf/lion16-quant.png", 200, L_FLATE_ENCODE,
190, boxa2, 0, 0.5, NULL, "/tmp/lept/pdf/file39.pdf");
pixDestroy(&pix1);
pixDestroy(&pix2);
pixDestroy(&pix3);
pixDestroy(&pix4);
pixDestroy(&pix5);
boxaDestroy(&boxa1);
boxaDestroy(&boxa2);
#endif
#if 1
/* ------------------ Test multipage pdf generation ----------------- */
fprintf(stderr, "\n*** Writing multipage pdfs from single page pdfs\n");
/* Generate a multi-page pdf from all these files */
startTimer();
concatenatePdf("/tmp/lept/pdf", "file", "/tmp/lept/pdf/cat_lept.pdf");
fprintf(stderr,
"All files have been concatenated: /tmp/lept/pdf/cat_lept.pdf\n"
"Concatenation time: %7.3f\n", stopTimer());
#endif
#if 1
/* ----------- Test corruption recovery by concatenation ------------ */
/* Put two good pdf files in a directory */
lept_rmdir("lept/good");
lept_mkdir("lept/good");
lept_cp("testfile1.pdf", "lept/good", NULL, NULL);
lept_cp("testfile2.pdf", "lept/good", NULL, NULL);
concatenatePdf("/tmp/lept/good", "file", "/tmp/lept/pdf/good.pdf");
/* Make a bad version with the pdf id removed, so that it is not
* recognized as a pdf */
lept_rmdir("lept/bad");
lept_mkdir("lept/bad");
ba = l_byteaInitFromFile("testfile2.pdf");
data = l_byteaGetData(ba, &nbytes);
l_binaryWrite("/tmp/lept/bad/testfile0.notpdf.pdf", "w",
data + 10, nbytes - 10);
/* Make a version with a corrupted trailer */
if (data)
data[2297] = '2'; /* munge trailer object 6: change 458 --> 428 */
l_binaryWrite("/tmp/lept/bad/testfile2.bad.pdf", "w", data, nbytes);
l_byteaDestroy(&ba);
/* Copy testfile1.pdf to the /tmp/lept/bad directory. Then
* run concat on the bad files. The "not pdf" file should be
* ignored, and the corrupted pdf file should be properly parsed,
* so the resulting concatenated pdf files should be identical. */
fprintf(stderr, "\nWe attempt to build from the bad directory\n");
lept_cp("testfile1.pdf", "lept/bad", NULL, NULL);
concatenatePdf("/tmp/lept/bad", "file", "/tmp/lept/pdf/bad.pdf");
filesAreIdentical("/tmp/lept/pdf/good.pdf", "/tmp/lept/pdf/bad.pdf", &same);
if (same)
fprintf(stderr, "Fixed: files are the same\n"
"Attempt succeeded\n");
else
fprintf(stderr, "Busted: files are different\n");
#endif
#if 0
fprintf(stderr, "\n*** pdftk writes multipage pdfs from images\n");
tempfile1 = genPathname("/tmp/lept/pdf", "file*.pdf");
tempfile2 = genPathname("/tmp/lept/pdf", "cat_pdftk.pdf");
snprintf(buffer, sizeof(buffer), "pdftk %s output %s",
tempfile1, tempfile2);
ret = system(buffer); /* pdftk */
lept_free(tempfile1);
lept_free(tempfile2);
#endif
#if 1
/* -- Test simple interface for generating multi-page pdf from images -- */
fprintf(stderr, "\n*** Writing multipage pdfs from images\n");
/* Put four image files in a directory. They will be encoded thus:
* file1.png: flate (8 bpp, only 10 colors)
* file2.jpg: dct (8 bpp, 256 colors because of the jpeg encoding)
* file3.tif: g4 (1 bpp)
* file4.jpg: dct (32 bpp) */
lept_mkdir("lept/image");
pix1 = pixRead("feyn.tif");
pix2 = pixRead("rabi.png");
pix3 = pixScaleToGray3(pix1);
pix4 = pixScaleToGray3(pix2);
pix5 = pixScale(pix1, 0.33, 0.33);
pix6 = pixRead("test24.jpg");
pixWrite("/tmp/lept/image/file1.png", pix3, IFF_PNG); /* 10 colors */
pixWrite("/tmp/lept/image/file2.jpg", pix4, IFF_JFIF_JPEG); /* 256 colors */
pixWrite("/tmp/lept/image/file3.tif", pix5, IFF_TIFF_G4);
pixWrite("/tmp/lept/image/file4.jpg", pix6, IFF_JFIF_JPEG);
startTimer();
convertFilesToPdf("/tmp/lept/image", "file", 100, 0.8, 0, 75, "4 file test",
"/tmp/lept/pdf/fourimages.pdf");
fprintf(stderr, "4-page pdf generated: /tmp/lept/pdf/fourimages.pdf\n"
"Time: %7.3f\n", stopTimer());
pixDestroy(&pix1);
pixDestroy(&pix2);
pixDestroy(&pix3);
pixDestroy(&pix4);
pixDestroy(&pix5);
pixDestroy(&pix6);
#endif
return 0;
}
main(int argc,
char **argv)
{
l_int32 same;
l_uint32 *rtab, *gtab, *btab;
l_int32 *cmaptab;
BOX *box;
PIX *pixs, *pixt1, *pixt2, *pixt3, *pixt4;
PIXCMAP *cmap;
static char mainName[] = "cmapquant_reg";
pixs = pixRead("lucasta-frag.jpg");
if (argc != 1)
exit(ERROR_INT("syntax: cmapquant_req", mainName, 1));
/* Convert to 4 bpp with 6 levels and a colormap */
pixt1 = pixThresholdTo4bpp(pixs, 6, 1);
/* Color some non-white pixels, preserving antialiasing, and
* adding these colors to the colormap */
box = boxCreate(120, 30, 200, 200);
pixColorGray(pixt1, box, L_PAINT_DARK, 220, 0, 0, 255);
pixDisplayWrite(pixt1, 1);
boxDestroy(&box);
/* Scale up by 1.5; losing the colormap */
startTimer();
pixt2 = pixScale(pixt1, 1.5, 1.5);
fprintf(stderr, "Time to scale by 1.5x = %7.3f sec\n", stopTimer());
pixDisplayWrite(pixt2, 1);
/* Re-quantize using the same colormap */
startTimer();
cmap = pixGetColormap(pixt1);
pixt3 = pixOctcubeQuantFromCmap(pixt2, cmap, MIN_DEPTH,
LEVEL, L_EUCLIDEAN_DISTANCE);
fprintf(stderr, "Time to requantize to cmap = %7.3f sec\n", stopTimer());
pixDisplayWrite(pixt3, 1);
/* Re-quantize first making the tables and then
* using the lower-level function */
startTimer();
makeRGBToIndexTables(&rtab, >ab, &btab, LEVEL);
cmaptab = pixcmapToOctcubeLUT(cmap, LEVEL, L_EUCLIDEAN_DISTANCE);
fprintf(stderr, "Time to make tables = %7.3f sec\n", stopTimer());
startTimer();
pixt4 = pixOctcubeQuantFromCmapLUT(pixt2, cmap, MIN_DEPTH,
cmaptab, rtab, gtab, btab);
fprintf(stderr, "Time for lowlevel re-quant = %7.3f sec\n", stopTimer());
pixDisplayWrite(pixt4, 1);
pixEqual(pixt3, pixt4, &same);
if (same)
fprintf(stderr, "Correct: images are the same\n");
else
fprintf(stderr, "Error: images differ\n");
FREE(cmaptab);
FREE(rtab);
FREE(gtab);
FREE(btab);
pixDisplayMultiple("/tmp/junk_write_display*");
pixDestroy(&pixs);
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
return 0;
}
main(int argc,
char **argv)
{
const char *str;
l_int32 equal, index, w, h;
BOX *box;
PIX *pixs, *pixd, *pixt, *pixd1, *pixd2, *pixd3;
PIX *pixt0, *pixt1, *pixt2, *pixt3, *pixt4;
PIXA *pixa;
PIXCMAP *cmap;
static char mainName[] = "grayquant_reg";
if ((pixs = pixRead("test8.jpg")) == NULL)
exit(ERROR_INT("pixs not made", mainName, 1));
pixa = pixaCreate(0);
pixSaveTiled(pixs, pixa, 1, 1, 20, 8);
/* threshold to 1 bpp */
pixd = pixThresholdToBinary(pixs, THRESHOLD);
pixSaveTiled(pixd, pixa, 1, 1, 20, 0);
pixWrite("/tmp/junkthr0.png", pixd, IFF_PNG);
pixDestroy(&pixd);
/* dither to 2 bpp, with and without colormap */
pixd = pixDitherTo2bpp(pixs, 1);
pixt = pixDitherTo2bpp(pixs, 0);
pixt2 = pixConvertGrayToColormap(pixt);
pixSaveTiled(pixd, pixa, 1, 1, 20, 0);
pixSaveTiled(pixt, pixa, 1, 0, 20, 0);
pixSaveTiled(pixt2, pixa, 1, 0, 20, 0);
pixWrite("/tmp/junkthr1.png", pixd, IFF_PNG);
pixWrite("/tmp/junkthr2.png", pixt, IFF_PNG);
pixWrite("/tmp/junkthr3.png", pixt2, IFF_PNG);
/* pixcmapWriteStream(stderr, pixGetColormap(pixd)); */
pixEqual(pixd, pixt2, &equal);
if (!equal)
fprintf(stderr, "Error: thr2 != thr3\n");
pixDestroy(&pixt);
pixDestroy(&pixt2);
pixDestroy(&pixd);
/* threshold to 2 bpp, with and without colormap */
pixd = pixThresholdTo2bpp(pixs, 4, 1);
pixt = pixThresholdTo2bpp(pixs, 4, 0);
pixt2 = pixConvertGrayToColormap(pixt);
pixSaveTiled(pixd, pixa, 1, 1, 20, 0);
pixSaveTiled(pixt, pixa, 1, 0, 20, 0);
pixSaveTiled(pixt2, pixa, 1, 0, 20, 0);
pixWrite("/tmp/junkthr4.png", pixd, IFF_PNG);
pixWrite("/tmp/junkthr5.png", pixt2, IFF_PNG);
pixEqual(pixd, pixt2, &equal);
if (!equal)
fprintf(stderr, "Error: thr4 != thr5\n");
pixDestroy(&pixt);
pixDestroy(&pixt2);
pixDestroy(&pixd);
pixd = pixThresholdTo2bpp(pixs, 3, 1);
pixt = pixThresholdTo2bpp(pixs, 3, 0);
pixSaveTiled(pixd, pixa, 1, 1, 20, 0);
pixSaveTiled(pixt, pixa, 1, 0, 20, 0);
pixWrite("/tmp/junkthr6.png", pixd, IFF_PNG);
pixWrite("/tmp/junkthr7.png", pixt, IFF_PNG);
pixDestroy(&pixt);
pixDestroy(&pixd);
/* threshold to 4 bpp, with and without colormap */
pixd = pixThresholdTo4bpp(pixs, 9, 1);
pixt = pixThresholdTo4bpp(pixs, 9, 0);
pixt2 = pixConvertGrayToColormap(pixt);
pixSaveTiled(pixd, pixa, 1, 1, 20, 0);
pixSaveTiled(pixt, pixa, 1, 0, 20, 0);
pixSaveTiled(pixt2, pixa, 1, 0, 20, 0);
pixWrite("/tmp/junkthr8.png", pixd, IFF_PNG);
pixWrite("/tmp/junkthr9.png", pixt, IFF_PNG);
pixWrite("/tmp/junkthr10.png", pixt2, IFF_PNG);
/* pixcmapWriteStream(stderr, pixGetColormap(pixd)); */
pixDestroy(&pixt);
pixDestroy(&pixt2);
pixDestroy(&pixd);
/* threshold on 8 bpp, with and without colormap */
pixd = pixThresholdOn8bpp(pixs, 9, 1);
pixt = pixThresholdOn8bpp(pixs, 9, 0);
pixt2 = pixConvertGrayToColormap(pixt);
pixSaveTiled(pixd, pixa, 1, 1, 20, 0);
pixSaveTiled(pixt, pixa, 1, 0, 20, 0);
pixSaveTiled(pixt2, pixa, 1, 0, 20, 0);
pixWrite("/tmp/junkthr11.png", pixd, IFF_PNG);
pixWrite("/tmp/junkthr12.png", pixt2, IFF_PNG);
/* pixcmapWriteStream(stderr, pixGetColormap(pixd)); */
pixEqual(pixd, pixt2, &equal);
if (!equal)
fprintf(stderr, "Error: thr11 != thr12\n");
pixDestroy(&pixt);
pixDestroy(&pixt2);
pixDestroy(&pixd);
pixd1 = pixaDisplay(pixa, 0, 0);
pixDisplay(pixd1, 100, 100);
pixWrite("/tmp/junkpixd1.jpg", pixd1, IFF_JFIF_JPEG);
pixDestroy(&pixd1);
pixaDestroy(&pixa);
pixa = pixaCreate(0);
pixSaveTiled(pixs, pixa, 1, 1, 20, 32);
/* highlight 2 bpp with colormap */
pixd = pixThresholdTo2bpp(pixs, 3, 1);
cmap = pixGetColormap(pixd);
pixcmapWriteStream(stderr, cmap);
box = boxCreate(278, 35, 122, 50);
pixSetSelectCmap(pixd, box, 2, 255, 255, 100);
pixcmapWriteStream(stderr, cmap);
pixDisplay(pixd, 0, 0);
pixSaveTiled(pixd, pixa, 1, 1, 20, 0);
pixWrite("/tmp/junkthr13.png", pixd, IFF_PNG);
pixDestroy(&pixd);
boxDestroy(&box);
/* test pixThreshold8() */
pixd = pixThreshold8(pixs, 1, 2, 1); /* cmap */
pixSaveTiled(pixd, pixa, 1, 1, 20, 0);
pixWrite("/tmp/junkthr14.png", pixd, IFF_PNG);
pixDisplay(pixd, 100, 0);
pixDestroy(&pixd);
pixd = pixThreshold8(pixs, 1, 2, 0); /* no cmap */
pixSaveTiled(pixd, pixa, 1, 0, 20, 0);
pixWrite("/tmp/junkthr15.png", pixd, IFF_PNG);
pixDisplay(pixd, 200, 0);
pixDestroy(&pixd);
pixd = pixThreshold8(pixs, 2, 3, 1); /* highlight one box */
pixSaveTiled(pixd, pixa, 1, 0, 20, 0);
box = boxCreate(278, 35, 122, 50);
pixSetSelectCmap(pixd, box, 2, 255, 255, 100);
pixWrite("/tmp/junkthr16.png", pixd, IFF_PNG);
pixDisplay(pixd, 300, 0);
cmap = pixGetColormap(pixd);
pixcmapWriteStream(stderr, cmap);
boxDestroy(&box);
pixDestroy(&pixd);
pixd = pixThreshold8(pixs, 2, 4, 0); /* no cmap */
pixSaveTiled(pixd, pixa, 1, 0, 20, 0);
pixWrite("/tmp/junkthr17.png", pixd, IFF_PNG);
pixDisplay(pixd, 400, 0);
pixDestroy(&pixd);
pixd = pixThreshold8(pixs, 4, 6, 1); /* highlight one box */
box = boxCreate(278, 35, 122, 50);
pixSetSelectCmap(pixd, box, 5, 255, 255, 100);
pixSaveTiled(pixd, pixa, 1, 0, 20, 0);
pixWrite("/tmp/junkthr18.png", pixd, IFF_PNG);
cmap = pixGetColormap(pixd);
pixcmapWriteStream(stderr, cmap);
boxDestroy(&box);
pixDisplay(pixd, 500, 0);
pixDestroy(&pixd);
pixd = pixThreshold8(pixs, 4, 6, 0); /* no cmap */
pixSaveTiled(pixd, pixa, 1, 0, 20, 0);
pixWrite("/tmp/junkthr19.png", pixd, IFF_PNG);
pixDisplay(pixd, 600, 0);
pixDestroy(&pixd);
/* highlight 4 bpp with 2 colormap entries */
/* Note: We use 5 levels (0-4) for gray. */
/* 5 & 6 are used for highlight color. */
pixd = pixThresholdTo4bpp(pixs, 5, 1);
cmap = pixGetColormap(pixd);
pixcmapGetIndex(cmap, 255, 255, 255, &index);
box = boxCreate(278, 35, 122, 50);
pixSetSelectCmap(pixd, box, index, 255, 255, 100); /* use 5 */
boxDestroy(&box);
box = boxCreate(4, 6, 157, 33);
pixSetSelectCmap(pixd, box, index, 100, 255, 255); /* use 6 */
boxDestroy(&box);
pixcmapWriteStream(stderr, cmap);
pixSaveTiled(pixd, pixa, 1, 1, 20, 0);
pixDisplay(pixd, 700, 0);
pixWrite("/tmp/junkthr20.png", pixd, IFF_PNG);
pixDestroy(&pixd);
/* comparison 8 bpp jpeg with 2 bpp (highlight) */
pixDestroy(&pixs);
pixs = pixRead("feyn.tif");
pixt = pixScaleToGray4(pixs);
pixt2 = pixReduceRankBinaryCascade(pixs, 2, 2, 0, 0);
pixd = pixThresholdTo2bpp(pixt, 3, 1);
box = boxCreate(175, 208, 228, 88);
pixSetSelectCmap(pixd, box, 2, 255, 255, 100);
pixDisplay(pixd, 100, 200);
cmap = pixGetColormap(pixd);
pixcmapWriteStream(stderr, cmap);
pixSaveTiled(pixt, pixa, 1, 1, 20, 0);
pixSaveTiled(pixt2, pixa, 1, 0, 20, 0);
pixSaveTiled(pixd, pixa, 1, 0, 20, 0);
pixWrite("/tmp/junkthr21.jpg", pixt, IFF_JFIF_JPEG);
pixWrite("/tmp/junkthr22.png", pixt2, IFF_PNG);
pixWrite("/tmp/junkthr23.png", pixd, IFF_PNG);
pixDestroy(&pixd);
pixDestroy(&pixt2);
boxDestroy(&box);
/* thresholding to 4 bpp (highlight); use pixt from above */
pixd = pixThresholdTo4bpp(pixt, NLEVELS, 1);
box = boxCreate(175, 208, 228, 83);
pixSetSelectCmap(pixd, box, NLEVELS - 1, 255, 255, 100);
boxDestroy(&box);
box = boxCreate(232, 298, 110, 25);
pixSetSelectCmap(pixd, box, NLEVELS - 1, 100, 255, 255);
boxDestroy(&box);
box = boxCreate(21, 698, 246, 82);
pixSetSelectCmap(pixd, box, NLEVELS - 1, 225, 100, 255);
boxDestroy(&box);
pixDisplay(pixd, 500, 200);
cmap = pixGetColormap(pixd);
pixcmapWriteStream(stderr, cmap);
pixt2 = pixReduceRankBinaryCascade(pixs, 2, 2, 0, 0);
pixSaveTiled(pixt2, pixa, 1, 1, 20, 0);
pixSaveTiled(pixd, pixa, 1, 0, 20, 0);
pixWrite("/tmp/junkthr24.png", pixt2, IFF_PNG);
pixWrite("/tmp/junkthr25.png", pixd, IFF_PNG);
pixDestroy(&pixt2);
pixDestroy(&pixd);
/* Thresholding to 4 bpp at 2, 3, 4, 5 and 6 levels */
box = boxCreate(25, 202, 136, 37);
pixt1 = pixClipRectangle(pixt, box, NULL);
pixt2 = pixScale(pixt1, 6., 6.);
pixGetDimensions(pixt2, &w, &h, NULL);
pixSaveTiled(pixt2, pixa, 1, 1, 20, 0);
pixDisplay(pixt2, 0, 0);
pixWrite("/tmp/junk-8.jpg", pixt2, IFF_JFIF_JPEG);
pixd = pixCreate(w, 6 * h, 8);
pixRasterop(pixd, 0, 0, w, h, PIX_SRC, pixt2, 0, 0);
pixt3 = pixThresholdTo4bpp(pixt2, 6, 1);
pixt4 = pixRemoveColormap(pixt3, REMOVE_CMAP_TO_GRAYSCALE);
pixRasterop(pixd, 0, h, w, h, PIX_SRC, pixt4, 0, 0);
pixSaveTiled(pixt3, pixa, 1, 0, 20, 0);
pixDisplay(pixt3, 0, 100);
pixWrite("/tmp/junk-4-6.png", pixt3, IFF_PNG);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
pixt3 = pixThresholdTo4bpp(pixt2, 5, 1);
pixt4 = pixRemoveColormap(pixt3, REMOVE_CMAP_TO_GRAYSCALE);
pixRasterop(pixd, 0, 2 * h, w, h, PIX_SRC, pixt4, 0, 0);
pixSaveTiled(pixt3, pixa, 1, 0, 20, 0);
pixDisplay(pixt3, 0, 200);
pixWrite("/tmp/junk-4-5.png", pixt3, IFF_PNG);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
pixt3 = pixThresholdTo4bpp(pixt2, 4, 1);
pixt4 = pixRemoveColormap(pixt3, REMOVE_CMAP_TO_GRAYSCALE);
pixRasterop(pixd, 0, 3 * h, w, h, PIX_SRC, pixt4, 0, 0);
pixSaveTiled(pixt3, pixa, 1, 0, 20, 0);
pixDisplay(pixt3, 0, 300);
pixWrite("/tmp/junk-4-4.png", pixt3, IFF_PNG);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
pixt3 = pixThresholdTo4bpp(pixt2, 3, 1);
pixt4 = pixRemoveColormap(pixt3, REMOVE_CMAP_TO_GRAYSCALE);
pixRasterop(pixd, 0, 4 * h, w, h, PIX_SRC, pixt4, 0, 0);
pixSaveTiled(pixt3, pixa, 1, 1, 20, 0);
pixDisplay(pixt3, 0, 400);
pixWrite("/tmp/junk-4-3.png", pixt3, IFF_PNG);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
pixt3 = pixThresholdTo4bpp(pixt2, 2, 1);
pixt4 = pixRemoveColormap(pixt3, REMOVE_CMAP_TO_GRAYSCALE);
pixRasterop(pixd, 0, 5 * h, w, h, PIX_SRC, pixt4, 0, 0);
pixDisplay(pixt3, 0, 500);
pixSaveTiled(pixt3, pixa, 1, 0, 20, 0);
pixWrite("/tmp/junk-4-2.png", pixt3, IFF_PNG);
pixDestroy(&pixt3);
pixDestroy(&pixt4);
pixWrite("/tmp/junk-all.png", pixd, IFF_PNG);
pixDestroy(&pixd);
pixd2 = pixaDisplay(pixa, 0, 0);
pixDisplay(pixd2, 100, 100);
pixWrite("/tmp/junkpixd2.jpg", pixd2, IFF_JFIF_JPEG);
pixDestroy(&pixd2);
pixaDestroy(&pixa);
#if 0 /* upscale 2x and threshold to 1 bpp; e.g., use test8.jpg */
startTimer();
pixd = pixScaleGray2xLIThresh(pixs, THRESHOLD);
fprintf(stderr, " time for scale/dither = %7.3f sec\n", stopTimer());
pixWrite(fileout, pixd, IFF_PNG);
pixDestroy(&pixd);
#endif
#if 0 /* upscale 4x and threshold to 1 bpp; e.g., use test8.jpg */
startTimer();
pixd = pixScaleGray4xLIThresh(pixs, THRESHOLD);
fprintf(stderr, " time for scale/dither = %7.3f sec\n", stopTimer());
pixWrite(fileout, pixd, IFF_PNG);
pixDestroy(&pixd);
#endif
boxDestroy(&box);
pixDestroy(&pixt);
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixDestroy(&pixs);
/* Thresholding with fixed and arbitrary bin boundaries */
pixa = pixaCreate(0);
pixs = pixRead("stampede2.jpg");
pixSaveTiled(pixs, pixa, 1, 1, 20, 8);
pixt = pixThresholdTo4bpp(pixs, 5, 1);
pixSaveTiled(pixt, pixa, 1, 0, 20, 0);
pixDestroy(&pixt);
pixt = pixThresholdTo4bpp(pixs, 7, 1);
cmap = pixGetColormap(pixt);
pixcmapWriteStream(stderr, cmap);
pixSaveTiled(pixt, pixa, 1, 0, 20, 0);
pixDestroy(&pixt);
pixt = pixThresholdTo4bpp(pixs, 11, 1);
pixSaveTiled(pixt, pixa, 1, 0, 20, 0);
pixDestroy(&pixt);
pixSaveTiled(pixs, pixa, 1, 1, 20, 8);
str = "45 75 115 185";
pixt = pixThresholdGrayArb(pixs, str, 8, 0, 0, 0);
pixSaveTiled(pixt, pixa, 1, 0, 20, 0);
pixDestroy(&pixt);
str = "38 65 85 115 160 210";
pixt = pixThresholdGrayArb(pixs, str, 8, 0, 1, 1);
cmap = pixGetColormap(pixt);
pixcmapWriteStream(stderr, cmap);
pixSaveTiled(pixt, pixa, 1, 0, 20, 0);
pixDestroy(&pixt);
str = "38 60 75 90 110 130 155 185 208 239";
pixt = pixThresholdGrayArb(pixs, str, 8, 0, 0, 0);
pixSaveTiled(pixt, pixa, 1, 0, 20, 0);
pixDestroy(&pixt);
pixSaveTiled(pixs, pixa, 1, 1, 20, 8);
str = "45 75 115 185";
pixt = pixThresholdGrayArb(pixs, str, 0, 1, 0, 1);
pixSaveTiled(pixt, pixa, 1, 0, 20, 0);
pixDestroy(&pixt);
str = "38 65 85 115 160 210";
pixt = pixThresholdGrayArb(pixs, str, 0, 1, 0, 1);
cmap = pixGetColormap(pixt);
pixcmapWriteStream(stderr, cmap);
pixSaveTiled(pixt, pixa, 1, 0, 20, 0);
pixDestroy(&pixt);
str = "38 60 75 90 110 130 155 185 208 239";
pixt = pixThresholdGrayArb(pixs, str, 4, 1, 0, 1);
pixSaveTiled(pixt, pixa, 1, 0, 20, 0);
pixDestroy(&pixt);
pixd3 = pixaDisplay(pixa, 0, 0);
pixDisplay(pixd3, 100, 100);
pixWrite("/tmp/junkpixd3.jpg", pixd3, IFF_JFIF_JPEG);
pixDestroy(&pixd3);
pixaDestroy(&pixa);
pixDestroy(&pixs);
return 0;
}
int main(int argc,
char **argv)
{
BOX *box;
PIX *pixs, *pixs8, *pixm, *pixt1, *pixt2, *pixd;
PIXA *pixa;
L_REGPARAMS *rp;
if (regTestSetup(argc, argv, &rp))
return 1;
pixa = pixaCreate(0);
/* Start with a 32 bpp image and a mask. Use the
* same mask for all clip/masked operations. */
pixs = pixRead("test24.jpg");
pixt1 = pixRead("rabi.png");
box = boxCreate(303, 1983, 800, 500);
pixm = pixClipRectangle(pixt1, box, NULL);
pixInvert(pixm, pixm);
boxDestroy(&box);
box = boxCreate(100, 100, 800, 500); /* clips on pixs and derivatives */
pixt2 = pixClipRectangle(pixs, box, NULL);
regTestWritePixAndCheck(rp, pixt2, IFF_JFIF_JPEG); /* 0 */
pixaAddPix(pixa, pixt2, L_INSERT);
pixDestroy(&pixt1);
/* Clip 32 bpp RGB */
pixd = pixClipMasked(pixs, pixm, 100, 100, 0x03c08000);
regTestWritePixAndCheck(rp, pixd, IFF_JFIF_JPEG); /* 1 */
pixaAddPix(pixa, pixd, L_INSERT);
/* Clip 8 bpp colormapped */
pixt1 = pixMedianCutQuant(pixs, 0);
pixt2 = pixClipRectangle(pixt1, box, NULL);
regTestWritePixAndCheck(rp, pixt2, IFF_PNG); /* 2 */
pixaAddPix(pixa, pixt2, L_INSERT);
pixd = pixClipMasked(pixt1, pixm, 100, 100, 0x03c08000);
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 3 */
pixaAddPix(pixa, pixd, L_INSERT);
pixDestroy(&pixt1);
/* Clip 4 bpp colormapped */
pixt1 = pixOctreeQuantNumColors(pixs, 16, 1);
pixt2 = pixClipRectangle(pixt1, box, NULL);
regTestWritePixAndCheck(rp, pixt2, IFF_PNG); /* 4 */
pixaAddPix(pixa, pixt2, L_INSERT);
pixd = pixClipMasked(pixt1, pixm, 100, 100, 0x03c08000);
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 5 */
pixaAddPix(pixa, pixd, L_INSERT);
pixDestroy(&pixt1);
/* Clip 2 bpp colormapped */
pixt1 = pixMedianCutQuantGeneral(pixs, 0, 2, 4, 5, 1, 1);
pixt2 = pixClipRectangle(pixt1, box, NULL);
regTestWritePixAndCheck(rp, pixt2, IFF_PNG); /* 6 */
pixaAddPix(pixa, pixt2, L_INSERT);
pixd = pixClipMasked(pixt1, pixm, 100, 100, 0x03608000);
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 7 */
pixaAddPix(pixa, pixd, L_INSERT);
pixDestroy(&pixt1);
/* Clip 8 bpp gray */
pixs8 = pixConvertRGBToLuminance(pixs);
pixt2 = pixClipRectangle(pixs8, box, NULL);
regTestWritePixAndCheck(rp, pixt2, IFF_JFIF_JPEG); /* 8 */
pixaAddPix(pixa, pixt2, L_INSERT);
pixd = pixClipMasked(pixs8, pixm, 100, 100, 90);
regTestWritePixAndCheck(rp, pixd, IFF_JFIF_JPEG); /* 9 */
pixaAddPix(pixa, pixd, L_INSERT);
/* Clip 4 bpp gray */
pixt1 = pixThresholdTo4bpp(pixs8, 16, 0);
pixt2 = pixClipRectangle(pixt1, box, NULL);
regTestWritePixAndCheck(rp, pixt2, IFF_PNG); /* 10 */
pixaAddPix(pixa, pixt2, L_INSERT);
pixd = pixClipMasked(pixt1, pixm, 100, 100, 0);
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 11 */
pixaAddPix(pixa, pixd, L_INSERT);
pixd = pixClipMasked(pixt1, pixm, 100, 100, 5);
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 12 */
pixaAddPix(pixa, pixd, L_INSERT);
pixd = pixClipMasked(pixt1, pixm, 100, 100, 15);
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 13 */
pixaAddPix(pixa, pixd, L_INSERT);
pixDestroy(&pixt1);
/* Clip 4 bpp gray, colormapped */
pixt1 = pixThresholdTo4bpp(pixs8, 16, 1);
pixt2 = pixClipRectangle(pixt1, box, NULL);
regTestWritePixAndCheck(rp, pixt2, IFF_PNG); /* 14 */
pixaAddPix(pixa, pixt2, L_INSERT);
pixd = pixClipMasked(pixt1, pixm, 100, 100, 0x55555500);
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 15 */
pixaAddPix(pixa, pixd, L_INSERT);
pixDestroy(&pixt1);
/* Clip 2 bpp gray */
pixt1 = pixThresholdTo2bpp(pixs8, 4, 0);
pixt2 = pixClipRectangle(pixt1, box, NULL);
regTestWritePixAndCheck(rp, pixt2, IFF_PNG); /* 16 */
pixaAddPix(pixa, pixt2, L_INSERT);
pixd = pixClipMasked(pixt1, pixm, 100, 100, 1);
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 17 */
pixaAddPix(pixa, pixd, L_INSERT);
pixDestroy(&pixt1);
/* Clip 2 bpp gray, colormapped */
pixt1 = pixThresholdTo2bpp(pixs8, 4, 1);
pixt2 = pixClipRectangle(pixt1, box, NULL);
pixd = pixClipMasked(pixt1, pixm, 100, 100, 0x55555500);
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 18 */
pixaAddPix(pixa, pixd, L_INSERT);
pixDestroy(&pixt1);
pixDestroy(&pixt2);
pixDestroy(&pixm);
pixDestroy(&pixs);
pixDestroy(&pixs8);
boxDestroy(&box);
/* Finally, do the 1 bpp painting through clipped region.
* We start with two 1 bpp text sources, use the inverse
* of the 2nd for the mask (so we take all of the 1st
* pixels under this mask), and for the remainder, which
* are the fg pixels in the 2nd, we paint them black (1).
* So this is a simple and fast blending of two 1 bpp pix. */
pixs = pixRead("feyn.tif");
box = boxCreate(670, 827, 800, 500);
pixt2 = pixClipRectangle(pixs, box, NULL);
regTestWritePixAndCheck(rp, pixt2, IFF_PNG); /* 19 */
pixaAddPix(pixa, pixt2, L_INSERT);
boxDestroy(&box);
pixt1 = pixRead("rabi.png");
box = boxCreate(303, 1983, 800, 500);
pixm = pixClipRectangle(pixt1, box, NULL);
pixInvert(pixm, pixm);
regTestWritePixAndCheck(rp, pixm, IFF_PNG); /* 20 */
pixaAddPix(pixa, pixm, L_INSERT);
pixd = pixClipMasked(pixs, pixm, 670, 827, 1);
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 21 */
pixaAddPix(pixa, pixd, L_INSERT);
pixDestroy(&pixs);
pixDestroy(&pixt1);
boxDestroy(&box);
/* If in testing mode, make a pdf */
if (rp->display) {
pixaConvertToPdf(pixa, 100, 1.0, L_FLATE_ENCODE, 0,
"Paint through mask", "/tmp/lept/regout/paintmask.pdf");
L_INFO("Output pdf: /tmp/lept/regout/paintmask.pdf\n", rp->testname);
}
pixaDestroy(&pixa);
return regTestCleanup(rp);
}
main(int argc,
char **argv)
{
char outname[256];
l_int32 loc, display, success;
L_BMF *bmf, *bmftop;
FILE *fp;
PIX *pixs, *pixt, *pixd;
PIX *pix1, *pix2, *pix3, *pix4, *pix5, *pix6, *pix7, *pix8;
PIXA *pixa;
if (regTestSetup(argc, argv, &fp, &display, &success, NULL))
return 1;
bmf = bmfCreate("./fonts", 6);
bmftop = bmfCreate("./fonts", 10);
pixs = pixRead("lucasta-47.jpg");
pix1 = pixScale(pixs, 0.4, 0.4); /* 8 bpp grayscale */
pix2 = pixConvertTo32(pix1); /* 32 bpp rgb */
pix3 = pixThresholdOn8bpp(pix1, 12, 1); /* 8 bpp cmapped */
pix4 = pixThresholdTo4bpp(pix1, 10, 1); /* 4 bpp cmapped */
pix5 = pixThresholdTo4bpp(pix1, 10, 0); /* 4 bpp not cmapped */
pix6 = pixThresholdTo2bpp(pix1, 3, 1); /* 2 bpp cmapped */
pix7 = pixThresholdTo2bpp(pix1, 3, 0); /* 2 bpp not cmapped */
pix8 = pixThresholdToBinary(pix1, 160); /* 1 bpp */
for (loc = 1; loc < 5; loc++) {
pixa = pixaCreate(0);
AddTextAndSave(pixa, pix1, bmf, textstr[0], loc, 190);
AddTextAndSave(pixa, pix2, bmf, textstr[1], loc, 0xff000000);
AddTextAndSave(pixa, pix3, bmf, textstr[2], loc, 0x00ff0000);
AddTextAndSave(pixa, pix4, bmf, textstr[3], loc, 0x0000ff00);
AddTextAndSave(pixa, pix5, bmf, textstr[4], loc, 11);
AddTextAndSave(pixa, pix6, bmf, textstr[5], loc, 0xff000000);
AddTextAndSave(pixa, pix7, bmf, textstr[6], loc, 2);
AddTextAndSave(pixa, pix8, bmf, textstr[7], loc, 1);
pixt = pixaDisplay(pixa, 0, 0);
pixd = pixAddSingleTextblock(pixt, bmftop, topstr[loc - 1],
0xff00ff00, L_ADD_ABOVE, NULL);
snprintf(outname, 240, "/tmp/writetext.%d.png", loc - 1);
pixWrite(outname, pixd, IFF_PNG);
regTestCheckFile(fp, argv, outname, loc - 1, &success);
pixDisplayWithTitle(pixd, 50 * loc, 50, NULL, display);
pixDestroy(&pixt);
pixDestroy(&pixd);
pixaDestroy(&pixa);
}
pixDestroy(&pixs);
pixDestroy(&pix1);
pixDestroy(&pix2);
pixDestroy(&pix3);
pixDestroy(&pix4);
pixDestroy(&pix5);
pixDestroy(&pix6);
pixDestroy(&pix7);
pixDestroy(&pix8);
bmfDestroy(&bmf);
bmfDestroy(&bmftop);
regTestCleanup(argc, argv, fp, success, NULL);
return 0;
}
main(int argc,
char **argv)
{
char outname[256], buf[512];
l_int32 loc, i;
L_BMF *bmf, *bmftop;
PIX *pixs, *pixt, *pixd;
PIX *pix1, *pix2, *pix3, *pix4, *pix5, *pix6, *pix7, *pix8;
PIXA *pixa;
L_REGPARAMS *rp;
SARRAY *sa;
if (regTestSetup(argc, argv, &rp))
return 1;
bmf = bmfCreate("./fonts", 6);
bmftop = bmfCreate("./fonts", 10);
pixs = pixRead("lucasta-47.jpg");
pix1 = pixScale(pixs, 0.4, 0.4); /* 8 bpp grayscale */
pix2 = pixConvertTo32(pix1); /* 32 bpp rgb */
pix3 = pixThresholdOn8bpp(pix1, 12, 1); /* 8 bpp cmapped */
pix4 = pixThresholdTo4bpp(pix1, 10, 1); /* 4 bpp cmapped */
pix5 = pixThresholdTo4bpp(pix1, 10, 0); /* 4 bpp not cmapped */
pix6 = pixThresholdTo2bpp(pix1, 3, 1); /* 2 bpp cmapped */
pix7 = pixThresholdTo2bpp(pix1, 3, 0); /* 2 bpp not cmapped */
pix8 = pixThresholdToBinary(pix1, 160); /* 1 bpp */
for (loc = 1; loc < 5; loc++) {
pixa = pixaCreate(0);
AddTextAndSave(pixa, pix1, bmf, textstr[0], loc, 800);
AddTextAndSave(pixa, pix2, bmf, textstr[1], loc, 0xff000000);
AddTextAndSave(pixa, pix3, bmf, textstr[2], loc, 0x00ff0000);
AddTextAndSave(pixa, pix4, bmf, textstr[3], loc, 0x0000ff00);
AddTextAndSave(pixa, pix5, bmf, textstr[4], loc, 800);
AddTextAndSave(pixa, pix6, bmf, textstr[5], loc, 0xff000000);
AddTextAndSave(pixa, pix7, bmf, textstr[6], loc, 800);
AddTextAndSave(pixa, pix8, bmf, textstr[7], loc, 800);
pixt = pixaDisplay(pixa, 0, 0);
pixd = pixAddSingleTextblock(pixt, bmftop, topstr[loc - 1],
0xff00ff00, L_ADD_ABOVE, NULL);
regTestWritePixAndCheck(rp, pixd, IFF_PNG); /* 0 - 4 */
pixDisplayWithTitle(pixd, 50 * loc, 50, NULL, rp->display);
pixDestroy(&pixt);
pixDestroy(&pixd);
pixaDestroy(&pixa);
}
pixDestroy(&pixs);
pixDestroy(&pix1);
pixDestroy(&pix2);
pixDestroy(&pix3);
pixDestroy(&pix4);
pixDestroy(&pix5);
pixDestroy(&pix6);
pixDestroy(&pix7);
pixDestroy(&pix8);
bmfDestroy(&bmf);
bmfDestroy(&bmftop);
/* Write multiple lines in different colors, filling up
* the colormap and requesting even more colors. */
pixs = pixRead("weasel4.11c.png");
pix1 = pixConvertTo8(pixs, 0);
pix2 = pixScale(pixs, 8.0, 8.0);
pix3 = pixQuantFromCmap(pix2, pixGetColormap(pixs), 4, 5,
L_EUCLIDEAN_DISTANCE);
regTestWritePixAndCheck(rp, pix3, IFF_PNG); /* 5 */
pixDisplayWithTitle(pix3, 0, 500, NULL, rp->display);
bmf = bmfCreate("fonts", 10);
sa = sarrayCreate(6);
for (i = 0; i < 6; i++) {
snprintf(buf, sizeof(buf), "This is textline %d\n", i);
sarrayAddString(sa, buf, L_COPY);
}
for (i = 0; i < 6; i++) {
pixSetTextline(pix3, bmf, sarrayGetString(sa, i, L_NOCOPY),
colors[i], 50, 120 + 60 * i, NULL, NULL);
}
regTestWritePixAndCheck(rp, pix3, IFF_PNG); /* 6 */
pixDisplayWithTitle(pix3, 600, 500, NULL, rp->display);
pixDestroy(&pixs);
pixDestroy(&pix1);
pixDestroy(&pix2);
pixDestroy(&pix3);
bmfDestroy(&bmf);
sarrayDestroy(&sa);
return regTestCleanup(rp);
}
int main(int argc,
char **argv)
{
BOX *box;
PIX *pixs, *pix1, *pix2, *pix3, *pix4, *pix5, *pix6, *pix7;
PIX *pix8, *pix9;
PIXCMAP *cmap;
L_REGPARAMS *rp;
if (regTestSetup(argc, argv, &rp))
return 1;
pixs = pixRead("lucasta-frag.jpg");
/* Convert to 4 bpp with 6 levels and a colormap */
pix1 = pixThresholdTo4bpp(pixs, 6, 1);
/* Color some non-white pixels, preserving antialiasing, and
* adding these colors to the colormap */
box = boxCreate(120, 30, 200, 200);
pixColorGray(pix1, box, L_PAINT_DARK, 220, 0, 0, 255);
regTestWritePixAndCheck(rp, pix1, IFF_PNG); /* 0 */
pixDisplayWithTitle(pix1, 0, 0, NULL, rp->display);
boxDestroy(&box);
/* Scale up by 1.5; losing the colormap */
pix2 = pixScale(pix1, 1.5, 1.5);
regTestWritePixAndCheck(rp, pix2, IFF_JFIF_JPEG); /* 1 */
pixDisplayWithTitle(pix2, 0, 0, NULL, rp->display);
/* Octcube quantize using the same colormap */
startTimer();
cmap = pixGetColormap(pix1);
pix3 = pixOctcubeQuantFromCmap(pix2, cmap, MIN_DEPTH,
LEVEL, L_EUCLIDEAN_DISTANCE);
fprintf(stderr, "Time to re-quantize to cmap = %7.3f sec\n", stopTimer());
regTestWritePixAndCheck(rp, pix3, IFF_PNG); /* 2 */
pixDisplayWithTitle(pix3, 0, 0, NULL, rp->display);
/* Convert the quantized image to rgb */
pix4 = pixConvertTo32(pix3);
/* Re-quantize using median cut */
pix5 = pixMedianCutQuant(pix4, 0);
regTestWritePixAndCheck(rp, pix5, IFF_PNG); /* 3 */
pixDisplayWithTitle(pix5, 0, 0, NULL, rp->display);
/* Re-quantize to few colors using median cut */
pix6 = pixFewColorsMedianCutQuantMixed(pix4, 30, 30, 100, 0, 0, 0);
regTestWritePixAndCheck(rp, pix6, IFF_PNG); /* 4 */
pixDisplayWithTitle(pix6, 0, 0, NULL, rp->display);
/* Octcube quantize mixed with gray */
startTimer();
pix7 = pixOctcubeQuantMixedWithGray(pix2, 4, 5, 5);
fprintf(stderr, "Time to re-quantize mixed = %7.3f sec\n", stopTimer());
regTestWritePixAndCheck(rp, pix7, IFF_PNG); /* 5 */
pixDisplayWithTitle(pix7, 0, 0, NULL, rp->display);
/* Fixed octcube quantization */
startTimer();
pix8 = pixFixedOctcubeQuant256(pix2, 0);
fprintf(stderr, "Time to re-quantize 256 = %7.3f sec\n", stopTimer());
regTestWritePixAndCheck(rp, pix8, IFF_PNG); /* 6 */
pixDisplayWithTitle(pix8, 0, 0, NULL, rp->display);
/* Remove unused colors */
startTimer();
pix9 = pixCopy(NULL, pix8);
pixRemoveUnusedColors(pix9);
fprintf(stderr, "Time to remove unused colors = %7.3f sec\n", stopTimer());
regTestWritePixAndCheck(rp, pix9, IFF_PNG); /* 7 */
pixDisplayWithTitle(pix8, 0, 0, NULL, rp->display);
/* Compare before and after colors removed */
regTestComparePix(rp, pix8, pix9); /* 8 */
pixDestroy(&pixs);
pixDestroy(&pix1);
pixDestroy(&pix2);
pixDestroy(&pix3);
pixDestroy(&pix4);
pixDestroy(&pix5);
pixDestroy(&pix6);
pixDestroy(&pix7);
pixDestroy(&pix8);
pixDestroy(&pix9);
return regTestCleanup(rp);
}
