1 /*****************************************************************************
2 ** This is part of the CTSim program
3 ** Copyright (C) 1983-2000 Kevin Rosenberg
5 ** $Id: sdf-2.c,v 1.4 2000/05/16 04:33:59 kevin Exp $
7 ** Revision 1.4 2000/05/16 04:33:59 kevin
8 ** Improved option processing
10 ** Revision 1.3 2000/05/11 01:06:30 kevin
11 ** Changed sprintf to snprintf
13 ** Revision 1.2 2000/05/08 20:02:32 kevin
16 ** Revision 1.1.1.1 2000/04/28 13:02:44 kevin
17 ** Initial CVS import for first public release
21 ** This program is free software; you can redistribute it and/or modify
22 ** it under the terms of the GNU General Public License (version 2) as
23 ** published by the Free Software Foundation.
25 ** This program is distributed in the hope that it will be useful,
26 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
27 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
28 ** GNU General Public License for more details.
30 ** You should have received a copy of the GNU General Public License
31 ** along with this program; if not, write to the Free Software
32 ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
33 ******************************************************************************/
36 * sdf-2.c Generate a SDF file from two input SDF files
41 enum {O_ADD, O_SUB, O_MUL, O_COMP, O_VERBOSE, O_HELP, O_VERSION};
43 static struct option my_options[] =
48 {"comp", 0, 0, O_COMP},
49 {"verbose", 0, 0, O_VERBOSE},
50 {"help", 0, 0, O_HELP},
51 {"version", 0, 0, O_VERSION},
56 sdf2_usage (const char *program)
58 fprintf(stdout, "sdf2_usage: %s infile1 infile2 outfile [OPTIONS]\n", kbasename(program));
59 fprintf(stdout, "Generate an SDF2D file from two input SDF2D files\n");
60 fprintf(stdout, "\n");
61 fprintf(stdout, " infile1 Name of first input SDF file\n");
62 fprintf(stdout, " infile2 Name of second input SDF file\n");
63 fprintf(stdout, " outfile Name of output SDF file\n");
64 fprintf(stdout, " --add Add images\n");
65 fprintf(stdout, " --sub Subtract image 2 from image 1\n");
66 fprintf(stdout, " --mul Multiply images\n");
67 fprintf(stdout, " --comp Compare images\n");
68 fprintf(stdout, " --verbose Verbose modem\n");
69 fprintf(stdout, " --version Print version\n");
70 fprintf(stdout, " --help Print this help message\n");
74 sdf2_main (int argc, char *const argv[])
90 int c = getopt_long (argc, argv, "", my_options, NULL);
114 fprintf(stdout, "Version %s\n", VERSION);
116 fprintf(stderr, "Unknown version number");
129 if (optind + 3 != argc)
135 in_file1 = argv[optind];
136 in_file2 = argv[optind + 1];
137 out_file = argv[optind + 2];
139 im_in1 = image_load (in_file1);
140 im_in2 = image_load (in_file2);
141 if (im_in1->nx != im_in2->nx || im_in1->ny != im_in2->ny) {
142 fprintf(stderr, "Size of image 1 (%d,%d) and image 2 (%d,%d) do not match\n",
143 im_in1->nx, im_in1->ny, im_in2->nx, im_in2->ny);
146 im_out = image_create (out_file, im_in1->nx, im_in1->ny);
150 for (ix = 0; ix < im_in1->nx; ix++)
152 IMAGE_ELEM_VAL *in1 = &im_in1->v[ix][0];
153 IMAGE_ELEM_VAL *in2 = &im_in2->v[ix][0];
154 IMAGE_ELEM_VAL *out = &im_out->v[ix][0];
155 for (iy = 0; iy < im_in1->ny; iy++)
156 *out++ = *in1++ + *in2++;
158 } else if (opt_sub) {
160 for (ix = 0; ix < im_in1->nx; ix++)
162 IMAGE_ELEM_VAL *in1 = &im_in1->v[ix][0];
163 IMAGE_ELEM_VAL *in2 = &im_in2->v[ix][0];
164 IMAGE_ELEM_VAL *out = &im_out->v[ix][0];
165 for (iy = 0; iy < im_in1->ny; iy++)
166 *out++ = *in1++ - *in2++;
168 } else if (opt_mul) {
170 for (ix = 0; ix < im_in1->nx; ix++)
172 IMAGE_ELEM_VAL *in1 = &im_in1->v[ix][0];
173 IMAGE_ELEM_VAL *in2 = &im_in2->v[ix][0];
174 IMAGE_ELEM_VAL *out = &im_out->v[ix][0];
175 for (iy = 0; iy < im_in1->ny; iy++)
176 *out++ = *in1++ * *in2++;
178 } else if (opt_comp) {
180 double abs_error = 0.;
181 for (ix = 0; ix < im_in1->nx; ix++)
183 IMAGE_ELEM_VAL *in1 = &im_in1->v[ix][0];
184 IMAGE_ELEM_VAL *in2 = &im_in2->v[ix][0];
185 IMAGE_ELEM_VAL *out = &im_out->v[ix][0];
186 for (iy = 0; iy < im_in1->ny; iy++)
188 double diff = *in1++ - *in2++;
190 abs_error += fabs(diff);
193 abs_error /= (im_in1->nx * im_in1->ny);
194 fprintf(stdout, "Average Error = %f\n", abs_error);
204 main (int argc, char *const argv[])
206 return (sdf2_main(argc, argv));