/* $Id: tiff-rgb.c,v 1.3.2.1 2010-06-08 18:50:40 bfriesen Exp $ */ /* * tiff-rgb.c -- create a 24-bit Class R (rgb) TIFF file * * Copyright 1990 by Digital Equipment Corporation, Maynard, Massachusetts. * * All Rights Reserved * * Permission to use, copy, modify, and distribute this software and its * documentation for any purpose and without fee is hereby granted, * provided that the above copyright notice appear in all copies and that * both that copyright notice and this permission notice appear in * supporting documentation, and that the name of Digital not be * used in advertising or publicity pertaining to distribution of the * software without specific, written prior permission. * * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL * DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS * SOFTWARE. */ #include #include #include #include #include "tiffio.h" #define ROUND(x) (uint16) ((x) + 0.5) #define CMSIZE 256 #define WIDTH 525 #define HEIGHT 512 #define TIFF_GAMMA 2.2 void Usage(); char * programName; int main(int argc, char **argv) { char * input_file = NULL; double image_gamma = TIFF_GAMMA; int i, j; TIFF * tif; unsigned char * scan_line; uint16 red[CMSIZE], green[CMSIZE], blue[CMSIZE]; float refblackwhite[2*3]; programName = argv[0]; switch (argc) { case 2: image_gamma = TIFF_GAMMA; input_file = argv[1]; break; case 4: if (!strcmp(argv[1], "-gamma")) { image_gamma = atof(argv[2]); input_file = argv[3]; } else Usage(); break; default: Usage(); } for (i = 0; i < CMSIZE; i++) { if (i == 0) red[i] = green[i] = blue[i] = 0; else { red[i] = ROUND((pow(i / 255.0, 1.0 / image_gamma) * 65535.0)); green[i] = ROUND((pow(i / 255.0, 1.0 / image_gamma) * 65535.0)); blue[i] = ROUND((pow(i / 255.0, 1.0 / image_gamma) * 65535.0)); } } refblackwhite[0] = 0.0; refblackwhite[1] = 255.0; refblackwhite[2] = 0.0; refblackwhite[3] = 255.0; refblackwhite[4] = 0.0; refblackwhite[5] = 255.0; if ((tif = TIFFOpen(input_file, "w")) == NULL) { fprintf(stderr, "can't open %s as a TIFF file\n", input_file); exit(0); } TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, WIDTH); TIFFSetField(tif, TIFFTAG_IMAGELENGTH, HEIGHT); TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8); TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE); TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB); TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3); TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, 1); TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); TIFFSetField(tif, TIFFTAG_RESOLUTIONUNIT, RESUNIT_NONE); #ifdef notdef TIFFSetField(tif, TIFFTAG_WHITEPOINT, whitex, whitey); TIFFSetField(tif, TIFFTAG_PRIMARYCHROMATICITIES, primaries); #endif TIFFSetField(tif, TIFFTAG_REFERENCEBLACKWHITE, refblackwhite); TIFFSetField(tif, TIFFTAG_TRANSFERFUNCTION, red, green, blue); scan_line = (unsigned char *) malloc(WIDTH * 3); for (i = 0; i < 255; i++) { for (j = 0; j < 75; j++) { scan_line[j * 3] = 255; scan_line[(j * 3) + 1] = 255 - i; scan_line[(j * 3) + 2] = 255 - i; } for (j = 75; j < 150; j++) { scan_line[j * 3] = 255 - i; scan_line[(j * 3) + 1] = 255; scan_line[(j * 3) + 2] = 255 - i; } for (j = 150; j < 225; j++) { scan_line[j * 3] = 255 - i; scan_line[(j * 3) + 1] = 255 - i; scan_line[(j * 3) + 2] = 255; } for (j = 225; j < 300; j++) { scan_line[j * 3] = (i - 1) / 2; scan_line[(j * 3) + 1] = (i - 1) / 2; scan_line[(j * 3) + 2] = (i - 1) / 2; } for (j = 300; j < 375; j++) { scan_line[j * 3] = 255 - i; scan_line[(j * 3) + 1] = 255; scan_line[(j * 3) + 2] = 255; } for (j = 375; j < 450; j++) { scan_line[j * 3] = 255; scan_line[(j * 3) + 1] = 255 - i; scan_line[(j * 3) + 2] = 255; } for (j = 450; j < 525; j++) { scan_line[j * 3] = 255; scan_line[(j * 3) + 1] = 255; scan_line[(j * 3) + 2] = 255 - i; } TIFFWriteScanline(tif, scan_line, i, 0); } for (i = 255; i < 512; i++) { for (j = 0; j < 75; j++) { scan_line[j * 3] = i; scan_line[(j * 3) + 1] = 0; scan_line[(j * 3) + 2] = 0; } for (j = 75; j < 150; j++) { scan_line[j * 3] = 0; scan_line[(j * 3) + 1] = i; scan_line[(j * 3) + 2] = 0; } for (j = 150; j < 225; j++) { scan_line[j * 3] = 0; scan_line[(j * 3) + 1] = 0; scan_line[(j * 3) + 2] = i; } for (j = 225; j < 300; j++) { scan_line[j * 3] = (i - 1) / 2; scan_line[(j * 3) + 1] = (i - 1) / 2; scan_line[(j * 3) + 2] = (i - 1) / 2; } for (j = 300; j < 375; j++) { scan_line[j * 3] = 0; scan_line[(j * 3) + 1] = i; scan_line[(j * 3) + 2] = i; } for (j = 375; j < 450; j++) { scan_line[j * 3] = i; scan_line[(j * 3) + 1] = 0; scan_line[(j * 3) + 2] = i; } for (j = 450; j < 525; j++) { scan_line[j * 3] = i; scan_line[(j * 3) + 1] = i; scan_line[(j * 3) + 2] = 0; } TIFFWriteScanline(tif, scan_line, i, 0); } free(scan_line); TIFFClose(tif); exit(0); } void Usage() { fprintf(stderr, "Usage: %s -gamma gamma tiff-image\n", programName); exit(0); } /* * Local Variables: * mode: c * c-basic-offset: 8 * fill-column: 78 * End: */