1 /*****************************************************************************
2 ** This is part of the CTSim program
3 ** Copyright (C) 1983-2000 Kevin Rosenberg
5 ** $Id: sdf-2.c,v 1.5 2000/05/24 22:50:04 kevin Exp $
7 ** Revision 1.5 2000/05/24 22:50:04 kevin
8 ** Added support for new SGP library
10 ** Revision 1.4 2000/05/16 04:33:59 kevin
11 ** Improved option processing
13 ** Revision 1.3 2000/05/11 01:06:30 kevin
14 ** Changed sprintf to snprintf
16 ** Revision 1.2 2000/05/08 20:02:32 kevin
19 ** Revision 1.1.1.1 2000/04/28 13:02:44 kevin
20 ** Initial CVS import for first public release
24 ** This program is free software; you can redistribute it and/or modify
25 ** it under the terms of the GNU General Public License (version 2) as
26 ** published by the Free Software Foundation.
28 ** This program is distributed in the hope that it will be useful,
29 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
30 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
31 ** GNU General Public License for more details.
33 ** You should have received a copy of the GNU General Public License
34 ** along with this program; if not, write to the Free Software
35 ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
36 ******************************************************************************/
39 * sdf-2.c Generate a SDF file from two input SDF files
44 enum {O_ADD, O_SUB, O_MUL, O_COMP, O_VERBOSE, O_HELP, O_VERSION};
46 static struct option my_options[] =
51 {"comp", 0, 0, O_COMP},
52 {"verbose", 0, 0, O_VERBOSE},
53 {"help", 0, 0, O_HELP},
54 {"version", 0, 0, O_VERSION},
59 sdf2_usage (const char *program)
61 fprintf(stdout, "sdf2_usage: %s infile1 infile2 outfile [OPTIONS]\n", kbasename(program));
62 fprintf(stdout, "Generate an SDF2D file from two input SDF2D files\n");
63 fprintf(stdout, "\n");
64 fprintf(stdout, " infile1 Name of first input SDF file\n");
65 fprintf(stdout, " infile2 Name of second input SDF file\n");
66 fprintf(stdout, " outfile Name of output SDF file\n");
67 fprintf(stdout, " --add Add images\n");
68 fprintf(stdout, " --sub Subtract image 2 from image 1\n");
69 fprintf(stdout, " --mul Multiply images\n");
70 fprintf(stdout, " --comp Compare images\n");
71 fprintf(stdout, " --verbose Verbose modem\n");
72 fprintf(stdout, " --version Print version\n");
73 fprintf(stdout, " --help Print this help message\n");
77 sdf2_main (int argc, char *const argv[])
93 int c = getopt_long (argc, argv, "", my_options, NULL);
117 fprintf(stdout, "Version %s\n", VERSION);
119 fprintf(stderr, "Unknown version number");
132 if (optind + 3 != argc)
138 in_file1 = argv[optind];
139 in_file2 = argv[optind + 1];
140 out_file = argv[optind + 2];
142 im_in1 = image_load (in_file1);
143 im_in2 = image_load (in_file2);
144 if (im_in1 == NULL || im_in2 == NULL) {
145 fprintf(stderr, "Error reading an image");
149 if (im_in1->nx != im_in2->nx || im_in1->ny != im_in2->ny) {
150 fprintf(stderr, "Error: Size of image 1 (%d,%d) and image 2 (%d,%d) do not match\n",
151 im_in1->nx, im_in1->ny, im_in2->nx, im_in2->ny);
154 if (im_in1->nx < 0 || im_in1->ny < 0) {
155 fprintf(stderr, "Error: Size of image < 0");
159 im_out = image_create (out_file, im_in1->nx, im_in1->ny);
163 for (ix = 0; ix < im_in1->nx; ix++)
165 IMAGE_ELEM_VAL *in1 = &im_in1->v[ix][0];
166 IMAGE_ELEM_VAL *in2 = &im_in2->v[ix][0];
167 IMAGE_ELEM_VAL *out = &im_out->v[ix][0];
168 for (iy = 0; iy < im_in1->ny; iy++)
169 *out++ = *in1++ + *in2++;
171 } else if (opt_sub) {
173 for (ix = 0; ix < im_in1->nx; ix++)
175 IMAGE_ELEM_VAL *in1 = &im_in1->v[ix][0];
176 IMAGE_ELEM_VAL *in2 = &im_in2->v[ix][0];
177 IMAGE_ELEM_VAL *out = &im_out->v[ix][0];
178 for (iy = 0; iy < im_in1->ny; iy++)
179 *out++ = *in1++ - *in2++;
181 } else if (opt_mul) {
183 for (ix = 0; ix < im_in1->nx; ix++)
185 IMAGE_ELEM_VAL *in1 = &im_in1->v[ix][0];
186 IMAGE_ELEM_VAL *in2 = &im_in2->v[ix][0];
187 IMAGE_ELEM_VAL *out = &im_out->v[ix][0];
188 for (iy = 0; iy < im_in1->ny; iy++)
189 *out++ = *in1++ * *in2++;
191 } else if (opt_comp) {
193 double abs_error = 0.;
194 for (ix = 0; ix < im_in1->nx; ix++)
196 IMAGE_ELEM_VAL *in1 = &im_in1->v[ix][0];
197 IMAGE_ELEM_VAL *in2 = &im_in2->v[ix][0];
198 IMAGE_ELEM_VAL *out = &im_out->v[ix][0];
199 for (iy = 0; iy < im_in1->ny; iy++)
201 double diff = *in1++ - *in2++;
203 abs_error += fabs(diff);
206 abs_error /= (im_in1->nx * im_in1->ny);
207 fprintf(stdout, "Average Error = %f\n", abs_error);
217 main (int argc, char *const argv[])
219 return (sdf2_main(argc, argv));