1 /*****************************************************************************
2 ** This is part of the CTSim program
3 ** Copyright (C) 1983-2000 Kevin Rosenberg
5 ** $Id: sdf-2.cpp,v 1.1 2000/06/07 02:29:05 kevin Exp $
7 ** Revision 1.1 2000/06/07 02:29:05 kevin
8 ** Initial C++ versions
10 ** Revision 1.5 2000/05/24 22:50:04 kevin
11 ** Added support for new SGP library
13 ** Revision 1.4 2000/05/16 04:33:59 kevin
14 ** Improved option processing
16 ** Revision 1.3 2000/05/11 01:06:30 kevin
17 ** Changed sprintf to snprintf
19 ** Revision 1.2 2000/05/08 20:02:32 kevin
22 ** Revision 1.1.1.1 2000/04/28 13:02:44 kevin
23 ** Initial CVS import for first public release
27 ** This program is free software; you can redistribute it and/or modify
28 ** it under the terms of the GNU General Public License (version 2) as
29 ** published by the Free Software Foundation.
31 ** This program is distributed in the hope that it will be useful,
32 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
33 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
34 ** GNU General Public License for more details.
36 ** You should have received a copy of the GNU General Public License
37 ** along with this program; if not, write to the Free Software
38 ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
39 ******************************************************************************/
42 * sdf-2.c Generate a SDF file from two input SDF files
47 enum {O_ADD, O_SUB, O_MUL, O_COMP, O_VERBOSE, O_HELP, O_VERSION};
49 static struct option my_options[] =
54 {"comp", 0, 0, O_COMP},
55 {"verbose", 0, 0, O_VERBOSE},
56 {"help", 0, 0, O_HELP},
57 {"version", 0, 0, O_VERSION},
62 sdf2_usage (const char *program)
64 fprintf(stdout, "sdf2_usage: %s infile1 infile2 outfile [OPTIONS]\n", kbasename(program));
65 fprintf(stdout, "Generate an SDF2D file from two input SDF2D files\n");
66 fprintf(stdout, "\n");
67 fprintf(stdout, " infile1 Name of first input SDF file\n");
68 fprintf(stdout, " infile2 Name of second input SDF file\n");
69 fprintf(stdout, " outfile Name of output SDF file\n");
70 fprintf(stdout, " --add Add images\n");
71 fprintf(stdout, " --sub Subtract image 2 from image 1\n");
72 fprintf(stdout, " --mul Multiply images\n");
73 fprintf(stdout, " --comp Compare images\n");
74 fprintf(stdout, " --verbose Verbose modem\n");
75 fprintf(stdout, " --version Print version\n");
76 fprintf(stdout, " --help Print this help message\n");
80 sdf2_main (int argc, char *const argv[])
96 int c = getopt_long (argc, argv, "", my_options, NULL);
120 fprintf(stdout, "Version %s\n", VERSION);
122 fprintf(stderr, "Unknown version number");
135 if (optind + 3 != argc)
141 in_file1 = argv[optind];
142 in_file2 = argv[optind + 1];
143 out_file = argv[optind + 2];
145 im_in1 = image_load (in_file1);
146 im_in2 = image_load (in_file2);
147 if (im_in1 == NULL || im_in2 == NULL) {
148 fprintf(stderr, "Error reading an image");
152 if (im_in1->nx != im_in2->nx || im_in1->ny != im_in2->ny) {
153 fprintf(stderr, "Error: Size of image 1 (%d,%d) and image 2 (%d,%d) do not match\n",
154 im_in1->nx, im_in1->ny, im_in2->nx, im_in2->ny);
157 if (im_in1->nx < 0 || im_in1->ny < 0) {
158 fprintf(stderr, "Error: Size of image < 0");
162 im_out = image_create (out_file, im_in1->nx, im_in1->ny);
166 for (ix = 0; ix < im_in1->nx; ix++)
168 IMAGE_ELEM_VAL *in1 = &im_in1->v[ix][0];
169 IMAGE_ELEM_VAL *in2 = &im_in2->v[ix][0];
170 IMAGE_ELEM_VAL *out = &im_out->v[ix][0];
171 for (iy = 0; iy < im_in1->ny; iy++)
172 *out++ = *in1++ + *in2++;
174 } else if (opt_sub) {
176 for (ix = 0; ix < im_in1->nx; ix++)
178 IMAGE_ELEM_VAL *in1 = &im_in1->v[ix][0];
179 IMAGE_ELEM_VAL *in2 = &im_in2->v[ix][0];
180 IMAGE_ELEM_VAL *out = &im_out->v[ix][0];
181 for (iy = 0; iy < im_in1->ny; iy++)
182 *out++ = *in1++ - *in2++;
184 } else if (opt_mul) {
186 for (ix = 0; ix < im_in1->nx; ix++)
188 IMAGE_ELEM_VAL *in1 = &im_in1->v[ix][0];
189 IMAGE_ELEM_VAL *in2 = &im_in2->v[ix][0];
190 IMAGE_ELEM_VAL *out = &im_out->v[ix][0];
191 for (iy = 0; iy < im_in1->ny; iy++)
192 *out++ = *in1++ * *in2++;
194 } else if (opt_comp) {
196 double abs_error = 0.;
197 for (ix = 0; ix < im_in1->nx; ix++)
199 IMAGE_ELEM_VAL *in1 = &im_in1->v[ix][0];
200 IMAGE_ELEM_VAL *in2 = &im_in2->v[ix][0];
201 IMAGE_ELEM_VAL *out = &im_out->v[ix][0];
202 for (iy = 0; iy < im_in1->ny; iy++)
204 double diff = *in1++ - *in2++;
206 abs_error += fabs(diff);
209 abs_error /= (im_in1->nx * im_in1->ny);
210 fprintf(stdout, "Average Error = %f\n", abs_error);
220 main (int argc, char *const argv[])
222 return (sdf2_main(argc, argv));