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)
{
char label[512];
l_int32 rval, gval, bval, w, h, i, j, rwhite, gwhite, bwhite, count;
l_uint32 pixel;
GPLOT *gplot1, *gplot2;
NUMA *naseq, *na;
NUMAA *naa1, *naa2;
PIX *pixs, *pixt, *pixt0, *pixt1, *pixt2;
PIX *pixr, *pixg, *pixb;
PIXA *pixa;
PIXCMAP *cmap;
static char mainName[] = "colorspacetest";
if (argc != 2)
return ERROR_INT(" Syntax: colorspacetest filein", mainName, 1);
if ((pixs = pixRead(argv[1])) == NULL)
return ERROR_INT("pixs not made", mainName, 1);
/* Generate colors by sampling hue with max sat and value.
* This was used to make the color strip 19-colors.png. */
pixa = pixaCreate(19);
for (i = 0; i < 19; i++) {
convertHSVToRGB((240 * i / 18), 255, 255, &rval, &gval, &bval);
composeRGBPixel(rval, gval, bval, &pixel);
pixt1 = pixCreate(50, 100, 32);
pixSetAllArbitrary(pixt1, pixel);
pixaAddPix(pixa, pixt1, L_INSERT);
}
pixt2 = pixaDisplayTiledInRows(pixa, 32, 1100, 1.0, 0, 0, 0);
pixDisplayWrite(pixt2, 1);
pixDestroy(&pixt2);
pixaDestroy(&pixa);
/* Colorspace conversion in rgb */
pixDisplayWrite(pixs, 1);
pixt = pixConvertRGBToHSV(NULL, pixs);
pixDisplayWrite(pixt, 1);
pixConvertHSVToRGB(pixt, pixt);
pixDisplayWrite(pixt, 1);
pixDestroy(&pixt);
/* Colorspace conversion on a colormap */
pixt = pixOctreeQuantNumColors(pixs, 25, 0);
pixDisplayWrite(pixt, 1);
cmap = pixGetColormap(pixt);
pixcmapWriteStream(stderr, cmap);
pixcmapConvertRGBToHSV(cmap);
pixcmapWriteStream(stderr, cmap);
pixDisplayWrite(pixt, 1);
pixcmapConvertHSVToRGB(cmap);
pixcmapWriteStream(stderr, cmap);
pixDisplayWrite(pixt, 1);
pixDestroy(&pixt);
/* Color content extraction */
pixColorContent(pixs, 0, 0, 0, 0, &pixr, &pixg, &pixb);
pixDisplayWrite(pixr, 1);
pixDisplayWrite(pixg, 1);
pixDisplayWrite(pixb, 1);
pixDestroy(&pixr);
pixDestroy(&pixg);
pixDestroy(&pixb);
/* Color content measurement */
pixa = pixaCreate(20);
naseq = numaMakeSequence(100, 5, 20);
naa1 = numaaCreate(6);
naa2 = numaaCreate(6);
for (i = 0; i < 6; i++) {
na = numaCreate(20);
numaaAddNuma(naa1, na, L_COPY);
numaaAddNuma(naa2, na, L_INSERT);
}
pixGetDimensions(pixs, &w, &h, NULL);
for (i = 0; i < 20; i++) {
rwhite = 100 + 5 * i;
gwhite = 200 - 5 * i;
bwhite = 150;
pixt0 = pixGlobalNormRGB(NULL, pixs, rwhite, gwhite, bwhite, 255);
pixaAddPix(pixa, pixt0, L_INSERT);
pixt1 = pixColorMagnitude(pixs, rwhite, gwhite, bwhite,
L_MAX_DIFF_FROM_AVERAGE_2);
for (j = 0; j < 6; j++) {
pixt2 = pixThresholdToBinary(pixt1, 30 + 10 * j);
pixInvert(pixt2, pixt2);
pixCountPixels(pixt2, &count, NULL);
na = numaaGetNuma(naa1, j, L_CLONE);
numaAddNumber(na, (l_float32)count / (l_float32)(w * h));
numaDestroy(&na);
pixDestroy(&pixt2);
}
pixDestroy(&pixt1);
pixt1 = pixColorMagnitude(pixs, rwhite, gwhite, bwhite,
L_MAX_MIN_DIFF_FROM_2);
for (j = 0; j < 6; j++) {
pixt2 = pixThresholdToBinary(pixt1, 30 + 10 * j);
pixInvert(pixt2, pixt2);
pixCountPixels(pixt2, &count, NULL);
na = numaaGetNuma(naa2, j, L_CLONE);
numaAddNumber(na, (l_float32)count / (l_float32)(w * h));
numaDestroy(&na);
pixDestroy(&pixt2);
}
pixDestroy(&pixt1);
}
gplot1 = gplotCreate("/tmp/junkplot1", GPLOT_X11,
"Fraction with given color (diff from average)",
"white point space for red", "amount of color");
gplot2 = gplotCreate("/tmp/junkplot2", GPLOT_X11,
"Fraction with given color (min diff)",
"white point space for red", "amount of color");
for (j = 0; j < 6; j++) {
na = numaaGetNuma(naa1, j, L_CLONE);
sprintf(label, "thresh %d", 30 + 10 * j);
gplotAddPlot(gplot1, naseq, na, GPLOT_LINES, label);
numaDestroy(&na);
na = numaaGetNuma(naa2, j, L_CLONE);
gplotAddPlot(gplot2, naseq, na, GPLOT_LINES, label);
numaDestroy(&na);
}
gplotMakeOutput(gplot1);
gplotMakeOutput(gplot2);
gplotDestroy(&gplot1);
gplotDestroy(&gplot2);
pixt1 = pixaDisplayTiledAndScaled(pixa, 32, 250, 4, 0, 10, 2);
pixWrite("/tmp/junkcolormag", pixt1, IFF_PNG);
pixDisplayWithTitle(pixt1, 0, 100, "Color magnitude", 1);
pixDestroy(&pixt1);
pixaDestroy(&pixa);
numaDestroy(&naseq);
numaaDestroy(&naa1);
numaaDestroy(&naa2);
pixDisplayMultiple("/tmp/display/file*");
pixDestroy(&pixs);
return 0;
}
static l_int32
TestImage(const char *filename,
l_int32 i,
L_REGPARAMS *rp)
{
char buf[256];
l_int32 w, h;
l_float32 factor;
PIX *pix, *pixs, *pixc, *pix32, *pixt, *pixd;
PIXA *pixa;
PROCNAME("TestImage");
if ((pix = pixRead(filename)) == NULL) {
rp->success = FALSE;
return ERROR_INT("pix not made", procName, 1);
}
pixGetDimensions(pix, &w, &h, NULL);
if (w > MAX_WIDTH) {
factor = (l_float32)MAX_WIDTH / (l_float32)w;
pixs = pixScale(pix, factor, factor);
}
else
pixs = pixClone(pix);
pixDestroy(&pix);
pixa = pixaCreate(0);
/* Median cut quantizer (no dither; 5 sigbits) */
pixSaveTiled(pixs, pixa, 1.0, 1, SPACE, 32);
pixc = pixMedianCutQuantGeneral(pixs, 0, 0, 16, 5, 1, 1);
PixSave32(pixa, pixc, rp);
pixc = pixMedianCutQuantGeneral(pixs, 0, 0, 128, 5, 1, 1);
PixSave32(pixa, pixc, rp);
pixc = pixMedianCutQuantGeneral(pixs, 0, 0, 256, 5, 1, 1);
PixSave32(pixa, pixc, rp);
/* Median cut quantizer (with dither; 5 sigbits) */
pixSaveTiled(pixs, pixa, 1.0, 1, SPACE, 0);
pixc = pixMedianCutQuantGeneral(pixs, 1, 0, 16, 5, 1, 1);
PixSave32(pixa, pixc, rp);
pixc = pixMedianCutQuantGeneral(pixs, 1, 0, 128, 5, 1, 1);
PixSave32(pixa, pixc, rp);
pixc = pixMedianCutQuantGeneral(pixs, 1, 0, 256, 5, 1, 1);
PixSave32(pixa, pixc, rp);
/* Median cut quantizer (no dither; 6 sigbits) */
pixSaveTiled(pixs, pixa, 1.0, 1, SPACE, 32);
pixc = pixMedianCutQuantGeneral(pixs, 0, 0, 16, 6, 1, 1);
PixSave32(pixa, pixc, rp);
pixc = pixMedianCutQuantGeneral(pixs, 0, 0, 128, 6, 1, 1);
PixSave32(pixa, pixc, rp);
pixc = pixMedianCutQuantGeneral(pixs, 0, 0, 256, 6, 1, 1);
PixSave32(pixa, pixc, rp);
/* Median cut quantizer (with dither; 6 sigbits) */
pixSaveTiled(pixs, pixa, 1.0, 1, SPACE, 0);
pixc = pixMedianCutQuantGeneral(pixs, 1, 0, 16, 6, 1, 1);
PixSave32(pixa, pixc, rp);
pixc = pixMedianCutQuantGeneral(pixs, 1, 0, 128, 6, 1, 1);
PixSave32(pixa, pixc, rp);
pixc = pixMedianCutQuantGeneral(pixs, 1, 0, 256, 6, 10, 1);
PixSave32(pixa, pixc, rp);
/* Median cut quantizer (mixed color/gray) */
pixSaveTiled(pixs, pixa, 1.0, 1, SPACE, 0);
pixc = pixMedianCutQuantMixed(pixs, 20, 10, 0, 0, 0);
PixSave32(pixa, pixc, rp);
pixc = pixMedianCutQuantMixed(pixs, 60, 20, 0, 0, 0);
PixSave32(pixa, pixc, rp);
pixc = pixMedianCutQuantMixed(pixs, 180, 40, 0, 0, 0);
PixSave32(pixa, pixc, rp);
/* Simple 256 cube octcube quantizer */
pixSaveTiled(pixs, pixa, 1.0, 1, SPACE, 0);
pixc = pixFixedOctcubeQuant256(pixs, 0); /* no dither */
PixSave32(pixa, pixc, rp);
pixc = pixFixedOctcubeQuant256(pixs, 1); /* dither */
PixSave32(pixa, pixc, rp);
/* 2-pass octree quantizer */
pixSaveTiled(pixs, pixa, 1.0, 1, SPACE, 0);
pixc = pixOctreeColorQuant(pixs, 128, 0); /* no dither */
PixSave32(pixa, pixc, rp);
pixc = pixOctreeColorQuant(pixs, 240, 0); /* no dither */
PixSave32(pixa, pixc, rp);
pixc = pixOctreeColorQuant(pixs, 128, 1); /* dither */
PixSave32(pixa, pixc, rp);
pixc = pixOctreeColorQuant(pixs, 240, 1); /* dither */
PixSave32(pixa, pixc, rp);
/* Simple adaptive quantization to 4 or 8 bpp, specifying ncolors */
pixSaveTiled(pixs, pixa, 1.0, 1, SPACE, 0);
pixc = pixOctreeQuantNumColors(pixs, 8, 0); /* fixed: 8 colors */
PixSave32(pixa, pixc, rp);
pixc = pixOctreeQuantNumColors(pixs, 16, 0); /* fixed: 16 colors */
PixSave32(pixa, pixc, rp);
pixc = pixOctreeQuantNumColors(pixs, 64, 0); /* fixed: 64 colors */
PixSave32(pixa, pixc, rp);
pixc = pixOctreeQuantNumColors(pixs, 256, 0); /* fixed: 256 colors */
PixSave32(pixa, pixc, rp);
/* Quantize to fully populated octree (RGB) at given level */
pixSaveTiled(pixs, pixa, 1.0, 1, SPACE, 0);
pixc = pixFixedOctcubeQuantGenRGB(pixs, 2); /* level 2 */
PixSave32(pixa, pixc, rp);
pixc = pixFixedOctcubeQuantGenRGB(pixs, 3); /* level 3 */
PixSave32(pixa, pixc, rp);
pixc = pixFixedOctcubeQuantGenRGB(pixs, 4); /* level 4 */
PixSave32(pixa, pixc, rp);
pixc = pixFixedOctcubeQuantGenRGB(pixs, 5); /* level 5 */
PixSave32(pixa, pixc, rp);
/* Generate 32 bpp RGB image with num colors <= 256 */
pixt = pixOctreeQuantNumColors(pixs, 256, 0); /* cmapped version */
pix32 = pixRemoveColormap(pixt, REMOVE_CMAP_BASED_ON_SRC);
/* Quantize image with few colors at fixed octree leaf level */
pixSaveTiled(pixt, pixa, 1.0, 1, SPACE, 0);
pixc = pixFewColorsOctcubeQuant1(pix32, 2); /* level 2 */
PixSave32(pixa, pixc, rp);
pixc = pixFewColorsOctcubeQuant1(pix32, 3); /* level 3 */
PixSave32(pixa, pixc, rp);
pixc = pixFewColorsOctcubeQuant1(pix32, 4); /* level 4 */
PixSave32(pixa, pixc, rp);
pixc = pixFewColorsOctcubeQuant1(pix32, 5); /* level 5 */
PixSave32(pixa, pixc, rp);
/* Quantize image by population */
pixSaveTiled(pixt, pixa, 1.0, 1, SPACE, 0);
pixc = pixOctreeQuantByPopulation(pixs, 3, 0); /* level 3, no dither */
PixSave32(pixa, pixc, rp);
pixc = pixOctreeQuantByPopulation(pixs, 3, 1); /* level 3, dither */
PixSave32(pixa, pixc, rp);
pixc = pixOctreeQuantByPopulation(pixs, 4, 0); /* level 4, no dither */
PixSave32(pixa, pixc, rp);
pixc = pixOctreeQuantByPopulation(pixs, 4, 1); /* level 4, dither */
PixSave32(pixa, pixc, rp);
/* Mixed color/gray octree quantizer */
pixSaveTiled(pixt, pixa, 1.0, 1, SPACE, 0);
pixc = pixOctcubeQuantMixedWithGray(pix32, 8, 64, 10); /* max delta = 10 */
PixSave32(pixa, pixc, rp);
pixc = pixOctcubeQuantMixedWithGray(pix32, 8, 64, 30); /* max delta = 30 */
PixSave32(pixa, pixc, rp);
pixc = pixOctcubeQuantMixedWithGray(pix32, 8, 64, 50); /* max delta = 50 */
PixSave32(pixa, pixc, rp);
/* Run the high-level converter */
pixSaveTiled(pixt, pixa, 1.0, 1, SPACE, 0);
pixc = pixConvertRGBToColormap(pix32, 1);
PixSave32(pixa, pixc, rp);
pixDestroy(&pix32);
pixDestroy(&pixt);
pixd = pixaDisplay(pixa, 0, 0);
pixDisplayWithTitle(pixd, 100, 100, NULL, rp->display);
sprintf(buf, "/tmp/regout/disp.%d.jpg", i);
pixWrite(buf, pixd, IFF_JFIF_JPEG);
pixDestroy(&pixs);
pixDestroy(&pixd);
pixaDestroy(&pixa);
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);
}
int main(int argc,
char **argv)
{
PIX *pixs, *pixc, *pixd;
PIXA *pixa;
static char mainName[] = "snapcolortest";
if (argc != 1)
return ERROR_INT(" Syntax: snapcolortest", mainName, 1);
if ((pixs = pixRead("Leptonica.jpg")) == NULL)
return ERROR_INT("pixs not made", mainName, 1);
pixa = pixaCreate(0);
/* First, snap the color directly on the input rgb image. */
pixSaveTiledOutline(pixs, pixa, 1.0, 1, 25, 2, 32);
pixd = pixSnapColor(NULL, pixs, 0xffffff00, LEPTONICA_YELLOW, 30);
pixSaveTiledOutline(pixd, pixa, 1.0, 0, 25, 2, 32);
pixWrite("/tmp/logo1.jpg", pixd, IFF_JFIF_JPEG);
pixDestroy(&pixd);
/* Then make a colormapped version and snap the color */
pixd = pixOctreeQuantNumColors(pixs, 250, 0);
pixSaveTiledOutline(pixd, pixa, 1.0, 1, 25, 2, 32);
pixSnapColor(pixd, pixd, 0xffffff00, LEPTONICA_YELLOW, 30);
pixSaveTiledOutline(pixd, pixa, 1.0, 0, 25, 2, 32);
pixWrite("/tmp/logo2.png", pixd, IFF_PNG);
pixDestroy(&pixd);
pixDestroy(&pixs);
/* Set the background of the google searchbox to yellow.
* The input image is colormapped with all 256 colors used. */
if ((pixs = pixRead("google-searchbox.png")) == NULL)
return ERROR_INT("pixs not made", mainName, 1);
pixSaveTiledOutline(pixs, pixa, 1.0, 1, 25, 2, 32);
pixd = pixSnapColor(NULL, pixs, 0xffffff00, LEPTONICA_YELLOW, 30);
pixSaveTiledOutline(pixd, pixa, 1.0, 0, 25, 2, 32);
pixWrite("/tmp/logo3.png", pixd, IFF_PNG);
pixDestroy(&pixd);
pixDestroy(&pixs);
/* A couple of more, setting pixels near white to strange colors */
pixs = pixRead("weasel4.11c.png");
pixSaveTiledOutline(pixs, pixa, 1.0, 1, 25, 2, 32);
pixd = pixSnapColor(NULL, pixs, 0xfefefe00, 0x80800000, 50);
pixSaveTiledOutline(pixd, pixa, 1.0, 0, 25, 2, 32);
pixDestroy(&pixs);
pixDestroy(&pixd);
pixs = pixRead("wyom.jpg");
pixc = pixFixedOctcubeQuant256(pixs, 0);
pixSaveTiledOutline(pixc, pixa, 1.0, 1, 25, 2, 32);
pixd = pixSnapColor(NULL, pixc, 0xf0f0f000, 0x80008000, 100);
pixSaveTiledOutline(pixd, pixa, 1.0, 0, 25, 2, 32);
pixDestroy(&pixs);
pixDestroy(&pixc);
pixDestroy(&pixd);
/* --- Display results --- */
pixd = pixaDisplay(pixa, 0, 0);
pixDisplay(pixd, 100, 100);
pixWrite("/tmp/snap.jpg", pixd, IFF_PNG);
pixDestroy(&pixd);
pixaDestroy(&pixa);
return 0;
}
int main(int argc,
char **argv)
{
char label[512];
l_int32 rval, gval, bval, w, h, i, j, rwhite, gwhite, bwhite, count;
l_uint32 pixel;
GPLOT *gplot1, *gplot2;
NUMA *naseq, *na;
NUMAA *naa1, *naa2;
PIX *pixs, *pixt, *pixt0, *pixt1, *pixt2;
PIX *pixr, *pixg, *pixb; /* for color content extraction */
PIXA *pixa, *pixat;
PIXCMAP *cmap;
L_REGPARAMS *rp;
if (regTestSetup(argc, argv, &rp))
return 1;
/* Generate a pdf of results when called with display */
pixa = pixaCreate(0);
/* Generate colors by sampling hue with max sat and value.
* This image has been saved as 19-colors.png. */
pixat = pixaCreate(19);
for (i = 0; i < 19; i++) {
convertHSVToRGB((240 * i / 18), 255, 255, &rval, &gval, &bval);
composeRGBPixel(rval, gval, bval, &pixel);
pixt1 = pixCreate(50, 100, 32);
pixSetAllArbitrary(pixt1, pixel);
pixaAddPix(pixat, pixt1, L_INSERT);
}
pixt2 = pixaDisplayTiledInRows(pixat, 32, 1100, 1.0, 0, 0, 0);
regTestWritePixAndCheck(rp, pixt2, IFF_PNG); /* 0 */
pixaAddPix(pixa, pixt2, L_INSERT);
pixaDestroy(&pixat);
/* Colorspace conversion in rgb */
pixs = pixRead("wyom.jpg");
pixaAddPix(pixa, pixs, L_INSERT);
pixt = pixConvertRGBToHSV(NULL, pixs);
regTestWritePixAndCheck(rp, pixt, IFF_JFIF_JPEG); /* 1 */
pixaAddPix(pixa, pixt, L_COPY);
pixConvertHSVToRGB(pixt, pixt);
regTestWritePixAndCheck(rp, pixt, IFF_JFIF_JPEG); /* 2 */
pixaAddPix(pixa, pixt, L_INSERT);
/* Colorspace conversion on a colormap */
pixt = pixOctreeQuantNumColors(pixs, 25, 0);
regTestWritePixAndCheck(rp, pixt, IFF_JFIF_JPEG); /* 3 */
pixaAddPix(pixa, pixt, L_COPY);
cmap = pixGetColormap(pixt);
if (rp->display) pixcmapWriteStream(stderr, cmap);
pixcmapConvertRGBToHSV(cmap);
if (rp->display) pixcmapWriteStream(stderr, cmap);
regTestWritePixAndCheck(rp, pixt, IFF_JFIF_JPEG); /* 4 */
pixaAddPix(pixa, pixt, L_COPY);
pixcmapConvertHSVToRGB(cmap);
if (rp->display) pixcmapWriteStream(stderr, cmap);
regTestWritePixAndCheck(rp, pixt, IFF_JFIF_JPEG); /* 5 */
pixaAddPix(pixa, pixt, L_INSERT);
/* Color content extraction */
pixColorContent(pixs, 0, 0, 0, 0, &pixr, &pixg, &pixb);
regTestWritePixAndCheck(rp, pixr, IFF_JFIF_JPEG); /* 6 */
pixaAddPix(pixa, pixr, L_INSERT);
regTestWritePixAndCheck(rp, pixg, IFF_JFIF_JPEG); /* 7 */
pixaAddPix(pixa, pixg, L_INSERT);
regTestWritePixAndCheck(rp, pixb, IFF_JFIF_JPEG); /* 8 */
pixaAddPix(pixa, pixb, L_INSERT);
/* Color content measurement. This tests the global
* mapping of (r,g,b) --> (white), for 20 different
* values of (r,g,b). For each mappings, we compute
* the color magnitude and threshold it at six values.
* For each of those six thresholds, we plot the
* fraction of pixels that exceeds the threshold
* color magnitude, where the red value (mapped to
* white) goes between 100 and 195. */
pixat = pixaCreate(20);
naseq = numaMakeSequence(100, 5, 20);
naa1 = numaaCreate(6);
naa2 = numaaCreate(6);
for (i = 0; i < 6; i++) {
na = numaCreate(20);
numaaAddNuma(naa1, na, L_COPY);
numaaAddNuma(naa2, na, L_INSERT);
}
pixGetDimensions(pixs, &w, &h, NULL);
for (i = 0; i < 20; i++) {
rwhite = 100 + 5 * i;
gwhite = 200 - 5 * i;
bwhite = 150;
pixt0 = pixGlobalNormRGB(NULL, pixs, rwhite, gwhite, bwhite, 255);
pixaAddPix(pixat, pixt0, L_INSERT);
pixt1 = pixColorMagnitude(pixs, rwhite, gwhite, bwhite,
L_MAX_DIFF_FROM_AVERAGE_2);
for (j = 0; j < 6; j++) {
pixt2 = pixThresholdToBinary(pixt1, 30 + 10 * j);
pixInvert(pixt2, pixt2);
pixCountPixels(pixt2, &count, NULL);
na = numaaGetNuma(naa1, j, L_CLONE);
numaAddNumber(na, (l_float32)count / (l_float32)(w * h));
numaDestroy(&na);
pixDestroy(&pixt2);
}
pixDestroy(&pixt1);
pixt1 = pixColorMagnitude(pixs, rwhite, gwhite, bwhite,
L_MAX_MIN_DIFF_FROM_2);
for (j = 0; j < 6; j++) {
pixt2 = pixThresholdToBinary(pixt1, 30 + 10 * j);
pixInvert(pixt2, pixt2);
pixCountPixels(pixt2, &count, NULL);
na = numaaGetNuma(naa2, j, L_CLONE);
numaAddNumber(na, (l_float32)count / (l_float32)(w * h));
numaDestroy(&na);
pixDestroy(&pixt2);
}
pixDestroy(&pixt1);
}
gplot1 = gplotCreate("/tmp/regout/colorspace.10", GPLOT_PNG,
"Fraction with given color (diff from average)",
"white point space for red", "amount of color");
gplot2 = gplotCreate("/tmp/regout/colorspace.11", GPLOT_PNG,
"Fraction with given color (min diff)",
"white point space for red", "amount of color");
for (j = 0; j < 6; j++) {
na = numaaGetNuma(naa1, j, L_CLONE);
sprintf(label, "thresh %d", 30 + 10 * j);
gplotAddPlot(gplot1, naseq, na, GPLOT_LINES, label);
numaDestroy(&na);
na = numaaGetNuma(naa2, j, L_CLONE);
gplotAddPlot(gplot2, naseq, na, GPLOT_LINES, label);
numaDestroy(&na);
}
gplotMakeOutput(gplot1);
gplotMakeOutput(gplot2);
gplotDestroy(&gplot1);
gplotDestroy(&gplot2);
pixt1 = pixaDisplayTiledAndScaled(pixat, 32, 250, 4, 0, 10, 2);
regTestWritePixAndCheck(rp, pixt1, IFF_JFIF_JPEG); /* 9 */
pixaAddPix(pixa, pixt1, L_INSERT);
pixDisplayWithTitle(pixt1, 0, 100, "Color magnitude", rp->display);
pixaDestroy(&pixat);
numaDestroy(&naseq);
numaaDestroy(&naa1);
numaaDestroy(&naa2);
/* Give gnuplot time to write out the files */
#ifndef _WIN32
sleep(1);
#else
Sleep(1000);
#endif /* _WIN32 */
/* Save as golden files, or check against them */
regTestCheckFile(rp, "/tmp/regout/colorspace.10.png"); /* 10 */
regTestCheckFile(rp, "/tmp/regout/colorspace.11.png"); /* 11 */
if (rp->display) {
pixt = pixRead("/tmp/regout/colorspace.10.png");
pixaAddPix(pixa, pixt, L_INSERT);
pixt = pixRead("/tmp/regout/colorspace.11.png");
pixaAddPix(pixa, pixt, L_INSERT);
pixaConvertToPdf(pixa, 0, 1.0, 0, 0, "colorspace tests",
"/tmp/regout/colorspace.pdf");
L_INFO("Output pdf: /tmp/regout/colorspace.pdf\n", rp->testname);
}
pixaDestroy(&pixa);
return regTestCleanup(rp);
}