/*! * pixRead() * * Input: filename (with full pathname or in local directory) * Return: pix if OK; null on error * * Notes: * (1) See at top of file for supported formats. */ PIX * pixRead(const char *filename) { FILE *fp; PIX *pix; PROCNAME("pixRead"); if (!filename) return (PIX *)ERROR_PTR("filename not defined", procName, NULL); if ((fp = fopenReadStream(filename)) == NULL) { L_ERROR("image file not found: %s\n", procName, filename); return NULL; } if ((pix = pixReadStream(fp, 0)) == NULL) { fclose(fp); return (PIX *)ERROR_PTR("pix not read", procName, NULL); } /* Close the stream except if GIF under windows, because * DGifCloseFile() closes the windows file stream! */ if (pixGetInputFormat(pix) != IFF_GIF) fclose(fp); #ifndef _WIN32 else /* gif file */ fclose(fp); #endif /* ! _WIN32 */ return pix; }
void MainWindow::on_actionSave_triggered() { l_int32 ret; l_int32 format = pixGetInputFormat(pixs); char * cFilename = recentFile.toLatin1().data(); ret = pixWrite(cFilename, pixs, format); if (ret) { statusBar()->showMessage(tr("Saving failed with error code %1").arg(ret), 2000); } else { statusBar()->showMessage(tr("File saved"), 2000); modified = false; updateTitle(); } }
l_int32 pixCopyInputFormat(PIX *pixd, PIX *pixs) { PROCNAME("pixCopyInputFormat"); if (!pixs) return ERROR_INT("pixs not defined", procName, 1); if (!pixd) return ERROR_INT("pixd not defined", procName, 1); if (pixs == pixd) return 0; /* no-op */ pixSetInputFormat(pixd, pixGetInputFormat(pixs)); return 0; }
void MainWindow::imageInfo() { QString aboutImage = tr("<h1>Image info</h1>"); aboutImage.append(tr("<p style='color:blue'>")); aboutImage.append(tr("width in pixels: %1<br/>").arg(pixs->w)); aboutImage.append(tr("height in pixels: %1<br/>").arg(pixs->h)); aboutImage.append(tr("depth in bits (bpp): %1<br/>").arg(pixs->d)); aboutImage.append(tr("number of samples per pixel [spp]: %1<br/>") .arg(pixs->spp)); aboutImage.append(tr("32-bit words/line [wpl]: %1<br/>").arg(pixs->wpl)); aboutImage.append(tr("resolution: %1x%2<br/>").arg(pixs->xres) .arg(pixs->yres)); aboutImage.append(tr("input format: %1</p>").arg(pixGetInputFormat(pixs))); char *text = pixGetText(pixs); if (text) aboutImage.append(tr("text string associated with pix: %1</p>") .arg(text)); QMessageBox::about(this, tr("About image"), aboutImage); }
/*! * pixChooseOutputFormat() * * Input: pix * Return: output format, or 0 on error * * Notes: * (1) This should only be called if the requested format is IFF_DEFAULT. * (2) If the pix wasn't read from a file, its input format value * will be IFF_UNKNOWN, and in that case it is written out * in a compressed but lossless format. */ l_int32 pixChooseOutputFormat(PIX *pix) { l_int32 d, format; PROCNAME("pixChooseOutputFormat"); if (!pix) return ERROR_INT("pix not defined", procName, 0); d = pixGetDepth(pix); format = pixGetInputFormat(pix); if (format == IFF_UNKNOWN) { /* output lossless */ if (d == 1) format = IFF_TIFF_G4; else format = IFF_PNG; } return format; }
/*! * pixSaveTiledOutline() * * Input: pixs (1, 2, 4, 8, 32 bpp) * pixa (the pix are accumulated here) * scalefactor (0.0 to disable; otherwise this is a scale factor) * newrow (0 if placed on the same row as previous; 1 otherwise) * space (horizontal and vertical spacing, in pixels) * linewidth (width of added outline for image; 0 for no outline) * dp (depth of pixa; 8 or 32 bpp; only used on first call) * Return: 0 if OK, 1 on error. * * Notes: * (1) Before calling this function for the first time, use * pixaCreate() to make the @pixa that will accumulate the pix. * This is passed in each time pixSaveTiled() is called. * (2) @scalefactor scales the input image. After scaling and * possible depth conversion, the image is saved in the input * pixa, along with a box that specifies the location to * place it when tiled later. Disable saving the pix by * setting @scalefactor == 0.0. * (3) @newrow and @space specify the location of the new pix * with respect to the last one(s) that were entered. * (4) @dp specifies the depth at which all pix are saved. It can * be only 8 or 32 bpp. Any colormap is removed. This is only * used at the first invocation. * (5) This function uses two variables from call to call. * If they were static, the function would not be .so or thread * safe, and furthermore, there would be interference with two or * more pixa accumulating images at a time. Consequently, * we use the first pix in the pixa to store and obtain both * the depth and the current position of the bottom (one pixel * below the lowest image raster line when laid out using * the boxa). The bottom variable is stored in the input format * field, which is the only field available for storing an int. */ l_int32 pixSaveTiledOutline(PIX *pixs, PIXA *pixa, l_float32 scalefactor, l_int32 newrow, l_int32 space, l_int32 linewidth, l_int32 dp) { l_int32 n, top, left, bx, by, bw, w, h, depth, bottom; BOX *box; PIX *pix1, *pix2, *pix3, *pix4; PROCNAME("pixSaveTiledOutline"); if (scalefactor == 0.0) return 0; if (!pixs) return ERROR_INT("pixs not defined", procName, 1); if (!pixa) return ERROR_INT("pixa not defined", procName, 1); n = pixaGetCount(pixa); if (n == 0) { bottom = 0; if (dp != 8 && dp != 32) { L_WARNING("dp not 8 or 32 bpp; using 32\n", procName); depth = 32; } else { depth = dp; } } else { /* extract the depth and bottom params from the first pix */ pix1 = pixaGetPix(pixa, 0, L_CLONE); depth = pixGetDepth(pix1); bottom = pixGetInputFormat(pix1); /* not typical usage! */ pixDestroy(&pix1); } /* Remove colormap if it exists; otherwise a copy. This * guarantees that pix4 is not a clone of pixs. */ pix1 = pixRemoveColormapGeneral(pixs, REMOVE_CMAP_BASED_ON_SRC, L_COPY); /* Scale and convert to output depth */ if (scalefactor == 1.0) { pix2 = pixClone(pix1); } else if (scalefactor > 1.0) { pix2 = pixScale(pix1, scalefactor, scalefactor); } else if (scalefactor < 1.0) { if (pixGetDepth(pix1) == 1) pix2 = pixScaleToGray(pix1, scalefactor); else pix2 = pixScale(pix1, scalefactor, scalefactor); } pixDestroy(&pix1); if (depth == 8) pix3 = pixConvertTo8(pix2, 0); else pix3 = pixConvertTo32(pix2); pixDestroy(&pix2); /* Add black outline */ if (linewidth > 0) pix4 = pixAddBorder(pix3, linewidth, 0); else pix4 = pixClone(pix3); pixDestroy(&pix3); /* Find position of current pix (UL corner plus size) */ if (n == 0) { top = 0; left = 0; } else if (newrow == 1) { top = bottom + space; left = 0; } else if (n > 0) { pixaGetBoxGeometry(pixa, n - 1, &bx, &by, &bw, NULL); top = by; left = bx + bw + space; } pixGetDimensions(pix4, &w, &h, NULL); bottom = L_MAX(bottom, top + h); box = boxCreate(left, top, w, h); pixaAddPix(pixa, pix4, L_INSERT); pixaAddBox(pixa, box, L_INSERT); /* Save the new bottom value */ pix1 = pixaGetPix(pixa, 0, L_CLONE); pixSetInputFormat(pix1, bottom); /* not typical usage! */ pixDestroy(&pix1); return 0; }
main(int argc, char **argv) { #if HAVE_FMEMOPEN char psname[256]; #endif /* HAVE_FMEMOPEN */ char *tempname; l_uint8 *data; l_int32 i, d, n, success, failure, same; l_int32 w, h, bps, spp; size_t size, nbytes; PIX *pix1, *pix2, *pix4, *pix8, *pix16, *pix32; PIX *pix, *pixt, *pixd; PIXA *pixa; L_REGPARAMS *rp; #if !HAVE_LIBJPEG fprintf(stderr, "Omitting libjpeg tests in ioformats_reg\n"); #endif /* !HAVE_LIBJPEG */ #if !HAVE_LIBTIFF fprintf(stderr, "Omitting libtiff tests in ioformats_reg\n"); #endif /* !HAVE_LIBTIFF */ #if !HAVE_LIBPNG || !HAVE_LIBZ fprintf(stderr, "Omitting libpng tests in ioformats_reg\n"); #endif /* !HAVE_LIBPNG || !HAVE_LIBZ */ if (regTestSetup(argc, argv, &rp)) return 1; /* --------- Part 1: Test all lossless formats for r/w to file ---------*/ failure = FALSE; success = TRUE; fprintf(stderr, "Test bmp 1 bpp file:\n"); if (ioFormatTest(BMP_FILE)) success = FALSE; #if HAVE_LIBTIFF fprintf(stderr, "\nTest other 1 bpp file:\n"); if (ioFormatTest(FILE_1BPP)) success = FALSE; #endif /* HAVE_LIBTIFF */ #if HAVE_LIBPNG fprintf(stderr, "\nTest 2 bpp file:\n"); if (ioFormatTest(FILE_2BPP)) success = FALSE; fprintf(stderr, "\nTest 2 bpp file with cmap:\n"); if (ioFormatTest(FILE_2BPP_C)) success = FALSE; fprintf(stderr, "\nTest 4 bpp file:\n"); if (ioFormatTest(FILE_4BPP)) success = FALSE; fprintf(stderr, "\nTest 4 bpp file with cmap:\n"); if (ioFormatTest(FILE_4BPP_C)) success = FALSE; fprintf(stderr, "\nTest 8 bpp grayscale file with cmap:\n"); if (ioFormatTest(FILE_8BPP_1)) success = FALSE; fprintf(stderr, "\nTest 8 bpp color file with cmap:\n"); if (ioFormatTest(FILE_8BPP_2)) success = FALSE; #endif /* HAVE_LIBPNG */ #if HAVE_LIBJPEG fprintf(stderr, "\nTest 8 bpp file without cmap:\n"); if (ioFormatTest(FILE_8BPP_3)) success = FALSE; #endif /* HAVE_LIBJPEG */ #if HAVE_LIBTIFF fprintf(stderr, "\nTest 16 bpp file:\n"); if (ioFormatTest(FILE_16BPP)) success = FALSE; #endif /* HAVE_LIBTIFF */ #if HAVE_LIBJPEG fprintf(stderr, "\nTest 32 bpp file:\n"); if (ioFormatTest(FILE_32BPP)) success = FALSE; #endif /* HAVE_LIBJPEG */ if (success) fprintf(stderr, "\n ********** Success on all i/o format tests *********\n"); else fprintf(stderr, "\n ******* Failure on at least one i/o format test ******\n"); if (!success) failure = TRUE; /* ------------------ Part 2: Test tiff r/w to file ------------------- */ #if !HAVE_LIBTIFF goto part6; #endif /* !HAVE_LIBTIFF */ fprintf(stderr, "\nTest tiff r/w and format extraction\n"); pixa = pixaCreate(6); pix1 = pixRead(BMP_FILE); pix2 = pixConvert1To2(NULL, pix1, 3, 0); pix4 = pixConvert1To4(NULL, pix1, 15, 0); pix16 = pixRead(FILE_16BPP); fprintf(stderr, "Input format: %d\n", pixGetInputFormat(pix16)); pix8 = pixConvert16To8(pix16, 1); pix32 = pixRead(FILE_32BPP); pixaAddPix(pixa, pix1, L_INSERT); pixaAddPix(pixa, pix2, L_INSERT); pixaAddPix(pixa, pix4, L_INSERT); pixaAddPix(pixa, pix8, L_INSERT); pixaAddPix(pixa, pix16, L_INSERT); pixaAddPix(pixa, pix32, L_INSERT); n = pixaGetCount(pixa); success = TRUE; for (i = 0; i < n; i++) { pix = pixaGetPix(pixa, i, L_CLONE); d = pixGetDepth(pix); fprintf(stderr, "%d bpp\n", d); if (i == 0) { /* 1 bpp */ pixWrite("/tmp/junkg3.tif", pix, IFF_TIFF_G3); pixWrite("/tmp/junkg4.tif", pix, IFF_TIFF_G4); pixWrite("/tmp/junkrle.tif", pix, IFF_TIFF_RLE); pixWrite("/tmp/junkpb.tif", pix, IFF_TIFF_PACKBITS); if (testcomp("/tmp/junkg3.tif", pix, IFF_TIFF_G3)) success = FALSE; if (testcomp("/tmp/junkg4.tif", pix, IFF_TIFF_G4)) success = FALSE; if (testcomp("/tmp/junkrle.tif", pix, IFF_TIFF_RLE)) success = FALSE; if (testcomp("/tmp/junkpb.tif", pix, IFF_TIFF_PACKBITS)) success = FALSE; } pixWrite("/tmp/junklzw.tif", pix, IFF_TIFF_LZW); pixWrite("/tmp/junkzip.tif", pix, IFF_TIFF_ZIP); pixWrite("/tmp/junknon.tif", pix, IFF_TIFF); if (testcomp("/tmp/junklzw.tif", pix, IFF_TIFF_LZW)) success = FALSE; if (testcomp("/tmp/junkzip.tif", pix, IFF_TIFF_ZIP)) success = FALSE; if (testcomp("/tmp/junknon.tif", pix, IFF_TIFF)) success = FALSE; pixDestroy(&pix); } if (success) fprintf(stderr, "\n ********** Success on tiff r/w to file *********\n\n"); else fprintf(stderr, "\n ******* Failure on at least one tiff r/w to file ******\n\n"); if (!success) failure = TRUE; /* ------------------ Part 3: Test tiff r/w to memory ----------------- */ success = TRUE; for (i = 0; i < n; i++) { pix = pixaGetPix(pixa, i, L_CLONE); d = pixGetDepth(pix); fprintf(stderr, "%d bpp\n", d); if (i == 0) { /* 1 bpp */ pixWriteMemTiff(&data, &size, pix, IFF_TIFF_G3); nbytes = nbytesInFile("/tmp/junkg3.tif"); fprintf(stderr, "nbytes = %ld, size = %ld\n", nbytes, size); pixt = pixReadMemTiff(data, size, 0); if (testcomp_mem(pix, &pixt, i, IFF_TIFF_G3)) success = FALSE; lept_free(data); pixWriteMemTiff(&data, &size, pix, IFF_TIFF_G4); nbytes = nbytesInFile("/tmp/junkg4.tif"); fprintf(stderr, "nbytes = %ld, size = %ld\n", nbytes, size); pixt = pixReadMemTiff(data, size, 0); if (testcomp_mem(pix, &pixt, i, IFF_TIFF_G4)) success = FALSE; readHeaderMemTiff(data, size, 0, &w, &h, &bps, &spp, NULL, NULL, NULL); fprintf(stderr, "(w,h,bps,spp) = (%d,%d,%d,%d)\n", w, h, bps, spp); lept_free(data); pixWriteMemTiff(&data, &size, pix, IFF_TIFF_RLE); nbytes = nbytesInFile("/tmp/junkrle.tif"); fprintf(stderr, "nbytes = %ld, size = %ld\n", nbytes, size); pixt = pixReadMemTiff(data, size, 0); if (testcomp_mem(pix, &pixt, i, IFF_TIFF_RLE)) success = FALSE; lept_free(data); pixWriteMemTiff(&data, &size, pix, IFF_TIFF_PACKBITS); nbytes = nbytesInFile("/tmp/junkpb.tif"); fprintf(stderr, "nbytes = %ld, size = %ld\n", nbytes, size); pixt = pixReadMemTiff(data, size, 0); if (testcomp_mem(pix, &pixt, i, IFF_TIFF_PACKBITS)) success = FALSE; lept_free(data); } pixWriteMemTiff(&data, &size, pix, IFF_TIFF_LZW); pixt = pixReadMemTiff(data, size, 0); if (testcomp_mem(pix, &pixt, i, IFF_TIFF_LZW)) success = FALSE; lept_free(data); pixWriteMemTiff(&data, &size, pix, IFF_TIFF_ZIP); pixt = pixReadMemTiff(data, size, 0); if (testcomp_mem(pix, &pixt, i, IFF_TIFF_ZIP)) success = FALSE; readHeaderMemTiff(data, size, 0, &w, &h, &bps, &spp, NULL, NULL, NULL); fprintf(stderr, "(w,h,bps,spp) = (%d,%d,%d,%d)\n", w, h, bps, spp); lept_free(data); pixWriteMemTiff(&data, &size, pix, IFF_TIFF); pixt = pixReadMemTiff(data, size, 0); if (testcomp_mem(pix, &pixt, i, IFF_TIFF)) success = FALSE; lept_free(data); pixDestroy(&pix); } if (success) fprintf(stderr, "\n ********** Success on tiff r/w to memory *********\n\n"); else fprintf(stderr, "\n ******* Failure on at least one tiff r/w to memory ******\n\n"); if (!success) failure = TRUE; /* ---------------- Part 4: Test non-tiff r/w to memory ---------------- */ #if HAVE_FMEMOPEN pixDisplayWrite(NULL, -1); success = TRUE; for (i = 0; i < n; i++) { pix = pixaGetPix(pixa, i, L_CLONE); d = pixGetDepth(pix); sprintf(psname, "/tmp/junkps.%d", d); fprintf(stderr, "%d bpp\n", d); if (d != 16) { if (test_writemem(pix, IFF_PNG, NULL)) success = FALSE; if (test_writemem(pix, IFF_BMP, NULL)) success = FALSE; } if (test_writemem(pix, IFF_PNM, NULL)) success = FALSE; if (test_writemem(pix, IFF_PS, psname)) success = FALSE; if (d == 8 || d == 32) if (test_writemem(pix, IFF_JFIF_JPEG, NULL)) success = FALSE; pixDestroy(&pix); } if (success) fprintf(stderr, "\n ********** Success on non-tiff r/w to memory *********\n\n"); else fprintf(stderr, "\n **** Failure on at least one non-tiff r/w to memory *****\n\n"); if (!success) failure = TRUE; #else fprintf(stderr, "\n ***** Non-tiff r/w to memory not enabled *****\n\n"); #endif /* HAVE_FMEMOPEN */ pixaDestroy(&pixa); /* ------------ Part 5: Test multipage tiff r/w to memory ------------ */ /* Make a multipage tiff file, and read it back into memory */ success = TRUE; pix = pixRead("feyn.tif"); pixa = pixaSplitPix(pix, 3, 3, 0, 0); for (i = 0; i < 9; i++) { pixt = pixaGetPix(pixa, i, L_CLONE); if (i == 0) pixWriteTiff("/tmp/junktiffmpage.tif", pixt, IFF_TIFF_G4, "w"); else pixWriteTiff("/tmp/junktiffmpage.tif", pixt, IFF_TIFF_G4, "a"); pixDestroy(&pixt); } data = l_binaryRead("/tmp/junktiffmpage.tif", &nbytes); pixaDestroy(&pixa); /* Read the individual pages from memory to a pix */ pixa = pixaCreate(9); for (i = 0; i < 9; i++) { pixt = pixReadMemTiff(data, nbytes, i); pixaAddPix(pixa, pixt, L_INSERT); } lept_free(data); /* Un-tile the pix in the pixa back to the original image */ pixt = pixaDisplayUnsplit(pixa, 3, 3, 0, 0); pixaDestroy(&pixa); /* Clip to foreground to remove any extra rows or columns */ pixClipToForeground(pix, &pix1, NULL); pixClipToForeground(pixt, &pix2, NULL); pixEqual(pix1, pix2, &same); if (same) fprintf(stderr, "\n ******* Success on tiff multipage read from memory ******\n\n"); else fprintf(stderr, "\n ******* Failure on tiff multipage read from memory ******\n\n"); if (!same) failure = TRUE; pixDestroy(&pix); pixDestroy(&pixt); pixDestroy(&pix1); pixDestroy(&pix2); /* ------------ Part 6: Test 24 bpp writing ------------ */ #if !HAVE_LIBTIFF part6: #endif /* !HAVE_LIBTIFF */ #if !HAVE_LIBPNG || !HAVE_LIBJPEG || !HAVE_LIBTIFF goto finish; #endif /* !HAVE_LIBPNG || !HAVE_LIBJPEG || !HAVE_LIBTIFF */ /* Generate a 24 bpp (not 32 bpp !!) rgb pix and write it out */ success = TRUE; pix = pixRead("marge.jpg"); pixt = make_24_bpp_pix(pix); pixWrite("/tmp/junk24.png", pixt, IFF_PNG); pixWrite("/tmp/junk24.jpg", pixt, IFF_JFIF_JPEG); pixWrite("/tmp/junk24.tif", pixt, IFF_TIFF); pixd = pixRead("/tmp/junk24.png"); pixEqual(pix, pixd, &same); if (!same) success = FALSE; pixDestroy(&pixd); pixd = pixRead("/tmp/junk24.jpg"); regTestCompareSimilarPix(rp, pix, pixd, 10, 0.0002, 0); pixDestroy(&pixd); pixd = pixRead("/tmp/junk24.tif"); pixEqual(pix, pixd, &same); if (!same) success = FALSE; pixDestroy(&pixd); if (success) fprintf(stderr, "\n ******* Success on 24 bpp rgb writing *******\n\n"); else fprintf(stderr, "\n ******* Failure on 24 bpp rgb writing *******\n\n"); if (!success) failure = TRUE; pixDestroy(&pix); pixDestroy(&pixt); /* -------------- Part 7: Read header information -------------- */ success = TRUE; if (get_header_data(FILE_1BPP, IFF_TIFF_G4)) success = FALSE; if (get_header_data(FILE_2BPP, IFF_PNG)) success = FALSE; if (get_header_data(FILE_2BPP_C, IFF_PNG)) success = FALSE; if (get_header_data(FILE_4BPP, IFF_PNG)) success = FALSE; if (get_header_data(FILE_4BPP_C, IFF_PNG)) success = FALSE; if (get_header_data(FILE_8BPP_1, IFF_PNG)) success = FALSE; if (get_header_data(FILE_8BPP_2, IFF_PNG)) success = FALSE; if (get_header_data(FILE_8BPP_3, IFF_JFIF_JPEG)) success = FALSE; if (get_header_data(FILE_16BPP, IFF_TIFF_ZIP)) success = FALSE; if (get_header_data(FILE_32BPP, IFF_JFIF_JPEG)) success = FALSE; #if HAVE_FMEMOPEN pix = pixRead(FILE_8BPP_1); tempname = genTempFilename((const char *)"/tmp", (const char *)".pnm", 1, 1); pixWrite(tempname, pix, IFF_PNM); if (get_header_data(tempname, IFF_PNM)) success = FALSE; pixDestroy(&pix); lept_free(tempname); #endif /* HAVE_FMEMOPEN */ pix = pixRead(FILE_1BPP); tempname = genTempFilename((const char *)"/tmp", (const char *)".tif", 1, 1); pixWrite(tempname, pix, IFF_TIFF_G3); if (get_header_data(tempname, IFF_TIFF_G3)) success = FALSE; pixWrite(tempname, pix, IFF_TIFF_G4); if (get_header_data(tempname, IFF_TIFF_G4)) success = FALSE; pixWrite(tempname, pix, IFF_TIFF_PACKBITS); if (get_header_data(tempname, IFF_TIFF_PACKBITS)) success = FALSE; pixWrite(tempname, pix, IFF_TIFF_RLE); if (get_header_data(tempname, IFF_TIFF_RLE)) success = FALSE; pixWrite(tempname, pix, IFF_TIFF_LZW); if (get_header_data(tempname, IFF_TIFF_LZW)) success = FALSE; pixWrite(tempname, pix, IFF_TIFF_ZIP); if (get_header_data(tempname, IFF_TIFF_ZIP)) success = FALSE; pixWrite(tempname, pix, IFF_TIFF); if (get_header_data(tempname, IFF_TIFF)) success = FALSE; pixDestroy(&pix); lept_free(tempname); if (success) fprintf(stderr, "\n ******* Success on reading headers *******\n\n"); else fprintf(stderr, "\n ******* Failure on reading headers *******\n\n"); if (!success) failure = TRUE; #if !HAVE_LIBPNG || !HAVE_LIBJPEG || !HAVE_LIBTIFF finish: #endif /* !HAVE_LIBPNG || !HAVE_LIBJPEG || !HAVE_LIBTIFF */ if (!failure) fprintf(stderr, " ******* Success on all tests *******\n\n"); else fprintf(stderr, " ******* Failure on at least one test *******\n\n"); return regTestCleanup(rp); }
/*! * pixSaveTiledOutline() * * Input: pixs (1, 2, 4, 8, 32 bpp) * pixa (the pix are accumulated here) * reduction (0 to disable; otherwise this is a reduction factor) * newrow (0 if placed on the same row as previous; 1 otherwise) * space (horizontal and vertical spacing, in pixels) * linewidth (width of added outline for image; 0 for no outline) * dp (depth of pixa; 8 or 32 bpp; only used on first call) * Return: 0 if OK, 1 on error. * * Notes: * (1) Before calling this function for the first time, use * pixaCreate() to make the @pixa that will accumulate the pix. * This is passed in each time pixSaveTiled() is called. * (2) @reduction is the integer reduction factor for the input * image. After reduction and possible depth conversion, * the image is saved in the input pixa, along with a box * that specifies the location to place it when tiled later. * Disable saving the pix by setting reduction == 0. * (3) @newrow and @space specify the location of the new pix * with respect to the last one(s) that were entered. * (4) @dp specifies the depth at which all pix are saved. It can * be only 8 or 32 bpp. Any colormap is removed. This is only * used at the first invocation. * (5) This function uses two variables from call to call. * If they were static, the function would not be .so or thread * safe, and furthermore, there would be interference with two or * more pixa accumulating images at a time. Consequently, * we use the first pix in the pixa to store and obtain both * the depth and the current position of the bottom (one pixel * below the lowest image raster line when laid out using * the boxa). The bottom variable is stored in the input format * field, which is the only field available for storing an int. */ l_int32 pixSaveTiledOutline(PIX *pixs, PIXA *pixa, l_int32 reduction, l_int32 newrow, l_int32 space, l_int32 linewidth, l_int32 dp) { l_int32 n, top, left, bx, by, bw, w, h, depth, bottom; l_float32 scale; BOX *box; PIX *pix, *pixt1, *pixt2, *pixt3; PROCNAME("pixSaveTiledOutline"); if (reduction == 0) return 0; if (!pixs) return ERROR_INT("pixs not defined", procName, 1); if (!pixa) return ERROR_INT("pixa not defined", procName, 1); n = pixaGetCount(pixa); if (n == 0) { bottom = 0; if (dp != 8 && dp != 32) { L_WARNING("dp not 8 or 32 bpp; using 32", procName); depth = 32; } else depth = dp; } else { /* extract the depth and bottom params from the first pix */ pix = pixaGetPix(pixa, 0, L_CLONE); depth = pixGetDepth(pix); bottom = pixGetInputFormat(pix); /* not typical usage! */ pixDestroy(&pix); } /* Scale and convert to output depth */ if (reduction == 1) pixt1 = pixClone(pixs); else { scale = 1. / (l_float32)reduction; if (pixGetDepth(pixs) == 1) pixt1 = pixScaleToGray(pixs, scale); else pixt1 = pixScale(pixs, scale, scale); } if (depth == 8) pixt2 = pixConvertTo8(pixt1, 0); else pixt2 = pixConvertTo32(pixt1); pixDestroy(&pixt1); /* Add black outline */ if (linewidth > 0) pixt3 = pixAddBorder(pixt2, linewidth, 0); else pixt3 = pixClone(pixt2); pixDestroy(&pixt2); /* Find position of current pix (UL corner plus size) */ if (n == 0) { top = 0; left = 0; } else if (newrow == 1) { top = bottom + space; left = 0; } else if (n > 0) { pixaGetBoxGeometry(pixa, n - 1, &bx, &by, &bw, NULL); top = by; left = bx + bw + space; } pixGetDimensions(pixt3, &w, &h, NULL); bottom = L_MAX(bottom, top + h); box = boxCreate(left, top, w, h); pixaAddPix(pixa, pixt3, L_INSERT); pixaAddBox(pixa, box, L_INSERT); /* Save the new bottom value */ pix = pixaGetPix(pixa, 0, L_CLONE); pixSetInputFormat(pix, bottom); /* not typical usage! */ pixDestroy(&pix); return 0; }
main(int argc, char **argv) { char *text; l_int32 w, h, d, wpl, count, npages, color, format, bps, spp, iscmap; FILE *fp; PIX *pix; PIXCMAP *cmap; char *filein; static char mainName[] = "fileinfo"; if (argc != 2) exit(ERROR_INT(" Syntax: fileinfo filein", mainName, 1)); filein = argv[1]; l_pngSetStrip16To8(0); /* to preserve 16 bpp if format is png */ /* Read the full image */ if ((pix = pixRead(filein)) == NULL) exit(ERROR_INT("image not returned from file", mainName, 1)); format = pixGetInputFormat(pix); pixGetDimensions(pix, &w, &h, &d); wpl = pixGetWpl(pix); fprintf(stderr, "Reading the full image:\n"); fprintf(stderr, " Input image format type: %s\n", ImageFileFormatExtensions[format]); fprintf(stderr, " w = %d, h = %d, d = %d, wpl = %d\n", w, h, d, wpl); fprintf(stderr, " xres = %d, yres = %d\n", pixGetXRes(pix), pixGetYRes(pix)); text = pixGetText(pix); if (text) /* not null */ fprintf(stderr, " Text: %s\n", text); cmap = pixGetColormap(pix); if (cmap) { pixcmapHasColor(cmap, &color); if (color) fprintf(stderr, " Colormap exists and has color values:"); else fprintf(stderr, " Colormap exists and has only gray values:"); pixcmapWriteStream(stderr, pixGetColormap(pix)); } else fprintf(stderr, " Colormap does not exist.\n"); if (format == IFF_TIFF || format == IFF_TIFF_G4 || format == IFF_TIFF_G3 || format == IFF_TIFF_PACKBITS) { fprintf(stderr, " Tiff header information:\n"); fp = lept_fopen(filein, "rb"); tiffGetCount(fp, &npages); lept_fclose(fp); if (npages == 1) fprintf(stderr, " One page in file\n"); else fprintf(stderr, " %d pages in file\n", npages); fprintTiffInfo(stderr, filein); } if (d == 1) { pixCountPixels(pix, &count, NULL); fprintf(stderr, " 1 bpp: pixel ratio ON/OFF = %6.3f\n", (l_float32)count / (l_float32)(pixGetWidth(pix) * pixGetHeight(pix))); } pixDestroy(&pix); /* Test pixReadHeader() */ if (pixReadHeader(filein, &format, &w, &h, &bps, &spp, &iscmap)) { fprintf(stderr, "Failure to read header!\n"); return 1; } fprintf(stderr, "Reading just the header:\n"); fprintf(stderr, " Input image format type: %s\n", ImageFileFormatExtensions[format]); fprintf(stderr, " w = %d, h = %d, d = %d, bps = %d, spp = %d, iscmap = %d\n", w, h, d, bps, spp, iscmap); return 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; }