/*!
* \brief pixToGif()
*
* \param[in] pix 1, 2, 4, 8, 16 or 32 bpp
* \param[in] gif opened gif stream
* \return 0 if OK, 1 on error
*
* <pre>
* Notes:
* (1) This encodes the pix to the gif stream. The stream is not
* closes by this function.
* (2) It is static to make this function private.
* </pre>
*/
static l_int32
pixToGif(PIX *pix, GifFileType *gif)
{
char *text;
l_int32 wpl, i, j, w, h, d, ncolor, rval, gval, bval;
l_int32 gif_ncolor = 0;
l_uint32 *data, *line;
PIX *pixd;
PIXCMAP *cmap;
ColorMapObject *gif_cmap;
GifByteType *gif_line;
#if (GIFLIB_MAJOR == 5 && GIFLIB_MINOR >= 1) || GIFLIB_MAJOR > 5
int giferr;
#endif /* 5.1 and beyond */
PROCNAME("pixToGif");
if (!pix)
return ERROR_INT("pix not defined", procName, 1);
if (!gif)
return ERROR_INT("gif not defined", procName, 1);
d = pixGetDepth(pix);
if (d == 32) {
pixd = pixConvertRGBToColormap(pix, 1);
} else if (d > 1) {
pixd = pixConvertTo8(pix, TRUE);
} else { /* d == 1; make sure there's a colormap */
pixd = pixClone(pix);
if (!pixGetColormap(pixd)) {
cmap = pixcmapCreate(1);
pixcmapAddColor(cmap, 255, 255, 255);
pixcmapAddColor(cmap, 0, 0, 0);
pixSetColormap(pixd, cmap);
}
}
if (!pixd)
return ERROR_INT("failed to convert image to indexed", procName, 1);
d = pixGetDepth(pixd);
if ((cmap = pixGetColormap(pixd)) == NULL) {
pixDestroy(&pixd);
return ERROR_INT("cmap is missing", procName, 1);
}
/* 'Round' the number of gif colors up to a power of 2 */
ncolor = pixcmapGetCount(cmap);
for (i = 0; i <= 8; i++) {
if ((1 << i) >= ncolor) {
gif_ncolor = (1 << i);
break;
}
}
if (gif_ncolor < 1) {
pixDestroy(&pixd);
return ERROR_INT("number of colors is invalid", procName, 1);
}
/* Save the cmap colors in a gif_cmap */
if ((gif_cmap = GifMakeMapObject(gif_ncolor, NULL)) == NULL) {
pixDestroy(&pixd);
return ERROR_INT("failed to create GIF color map", procName, 1);
}
for (i = 0; i < gif_ncolor; i++) {
rval = gval = bval = 0;
if (ncolor > 0) {
if (pixcmapGetColor(cmap, i, &rval, &gval, &bval) != 0) {
pixDestroy(&pixd);
GifFreeMapObject(gif_cmap);
return ERROR_INT("failed to get color from color map",
procName, 1);
}
ncolor--;
}
gif_cmap->Colors[i].Red = rval;
gif_cmap->Colors[i].Green = gval;
gif_cmap->Colors[i].Blue = bval;
}
pixGetDimensions(pixd, &w, &h, NULL);
if (EGifPutScreenDesc(gif, w, h, gif_cmap->BitsPerPixel, 0, gif_cmap)
!= GIF_OK) {
pixDestroy(&pixd);
GifFreeMapObject(gif_cmap);
return ERROR_INT("failed to write screen description", procName, 1);
}
GifFreeMapObject(gif_cmap); /* not needed after this point */
if (EGifPutImageDesc(gif, 0, 0, w, h, FALSE, NULL) != GIF_OK) {
pixDestroy(&pixd);
return ERROR_INT("failed to image screen description", procName, 1);
}
data = pixGetData(pixd);
wpl = pixGetWpl(pixd);
if (d != 1 && d != 2 && d != 4 && d != 8) {
pixDestroy(&pixd);
return ERROR_INT("image depth is not in {1, 2, 4, 8}", procName, 1);
}
if ((gif_line = (GifByteType *)LEPT_CALLOC(sizeof(GifByteType), w))
== NULL) {
pixDestroy(&pixd);
return ERROR_INT("mem alloc fail for data line", procName, 1);
}
for (i = 0; i < h; i++) {
line = data + i * wpl;
/* Gif's way of setting the raster line up for compression */
for (j = 0; j < w; j++) {
switch(d)
{
case 8:
gif_line[j] = GET_DATA_BYTE(line, j);
break;
case 4:
gif_line[j] = GET_DATA_QBIT(line, j);
break;
case 2:
gif_line[j] = GET_DATA_DIBIT(line, j);
break;
case 1:
gif_line[j] = GET_DATA_BIT(line, j);
break;
}
}
/* Compress and save the line */
if (EGifPutLine(gif, gif_line, w) != GIF_OK) {
LEPT_FREE(gif_line);
pixDestroy(&pixd);
return ERROR_INT("failed to write data line into GIF", procName, 1);
}
}
/* Write a text comment. This must be placed after writing the
* data (!!) Note that because libgif does not provide a function
* for reading comments from file, you will need another way
* to read comments. */
if ((text = pixGetText(pix)) != NULL) {
if (EGifPutComment(gif, text) != GIF_OK)
L_WARNING("gif comment not written\n", procName);
}
LEPT_FREE(gif_line);
pixDestroy(&pixd);
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;
}
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);
}
main(int argc,
char **argv)
{
l_int32 w, h, d, wpl, count, i, format, xres, yres;
FILE *fp;
PIX *pix, *pixt1, *pixt2;
PIXCMAP *cmap;
char *filein;
char *fileout = NULL;
static char mainName[] = "iotest";
if (argc != 2 && argc != 3)
exit(ERROR_INT(" Syntax: iotest filein [fileout]", mainName, 1));
filein = argv[1];
if (argc == 3)
fileout = argv[2];
#if 1
if ((pix = pixRead(filein)) == NULL)
exit(ERROR_INT("pix not made", mainName, 1));
#else
if ((pix = pixReadJpeg(filein, 0, 4, NULL)) == NULL)
exit(ERROR_INT("pix not made", mainName, 1));
#endif
pixGetDimensions(pix, &w, &h, &d);
wpl = pixGetWpl(pix);
fprintf(stderr, "w = %d, h = %d, d = %d, wpl = %d\n", w, h, d, wpl);
xres = pixGetXRes(pix);
yres = pixGetXRes(pix);
if (xres != 0 && yres != 0)
fprintf(stderr, "xres = %d, yres = %d\n", xres, yres);
if (pixGetColormap(pix)) {
/* Write and read back the colormap */
pixcmapWriteStream(stderr, pixGetColormap(pix));
fp = lept_fopen("/tmp/junkcmap1", "wb");
pixcmapWriteStream(fp, pixGetColormap(pix));
lept_fclose(fp);
fp = lept_fopen("/tmp/junkcmap1", "rb");
cmap = pixcmapReadStream(fp);
lept_fclose(fp);
fp = lept_fopen("/tmp/junkcmap2", "wb");
pixcmapWriteStream(fp, cmap);
lept_fclose(fp);
pixcmapDestroy(&cmap);
/* Remove and regenerate colormap */
pixt1 = pixRemoveColormap(pix, REMOVE_CMAP_BASED_ON_SRC);
if (pixGetDepth(pixt1) == 8) {
fprintf(stderr, "Colormap: represents grayscale image\n");
pixt2 = pixConvertGrayToColormap(pixt1);
}
else { /* 32 bpp */
fprintf(stderr, "Colormap: represents RGB image\n");
pixt2 = pixConvertRGBToColormap(pixt1, 1);
}
pixWrite("/tmp/junkpixt2.png", pixt2, IFF_PNG);
pixDestroy(&pixt1);
pixDestroy(&pixt2);
}
else {
fprintf(stderr, "no colormap\n");
}
format = pixGetInputFormat(pix);
fprintf(stderr, "Input format extension: %s\n",
ImageFileFormatExtensions[format]);
if (format == IFF_JFIF_JPEG)
fprintf(stderr, "Jpeg comment: %s\n", pixGetText(pix));
if (d == 1) {
pixCountPixels(pix, &count, NULL);
fprintf(stderr, "pixel ratio ON/OFF = %6.3f\n",
(l_float32)count / (l_float32)(pixGetWidth(pix) * pixGetHeight(pix)));
}
if (argc == 3) {
#if 1
d = pixGetDepth(pix);
if (d == 16 || d < 8 || pixGetColormap(pix))
pixWrite(fileout, pix, IFF_PNG);
else
pixWriteJpeg(fileout, pix, 75, 0);
#elif 0
pixWrite(fileout, pix, IFF_BMP);
#elif 0
pixWrite(fileout, pix, IFF_PNG);
#elif 0
pixWrite(fileout, pix, IFF_TIFF);
fprintTiffInfo(stderr, fileout);
#elif 0
pixWrite(fileout, pix, IFF_TIFF_PACKBITS);
fprintTiffInfo(stderr, fileout);
#elif 0
pixWrite(fileout, pix, IFF_TIFF_G3);
fprintTiffInfo(stderr, fileout);
#elif 0
pixWrite(fileout, pix, IFF_TIFF_G4);
fprintTiffInfo(stderr, fileout);
#elif 0
pixWrite(fileout, pix, IFF_JFIF_JPEG);
#elif 0
pixWriteJpeg(fileout, pix, 75, 0);
#elif 0
pixWrite(fileout, pix, IFF_PNM);
#elif 0
pixWrite(fileout, pix, IFF_PS);
#endif
}
pixDestroy(&pix);
#if 0 /* test tiff header reader */
{ l_int32 w, h, bps, spp, res, cmap;
if (readHeaderTiff(filein, 0, &w, &h, &bps, &spp, &res, &cmap) == 0)
fprintf(stderr,
"w = %d, h = %d, bps = %d, spp = %d, res = %d, cmap = %d\n",
w, h, bps, spp, res, cmap);
}
#endif
return 0;
}
