Mercurial > hg > wm
annotate Meerwald/wm_dugad_d.c @ 22:d8551fb39a5e default tip
Added tag v0.6 for changeset 1c4ccd635a68
| author | Peter Meerwald-Stadler <pmeerw@pmeerw.net> |
|---|---|
| date | Sat, 28 Jan 2023 23:57:51 +0100 |
| parents | 4987db85cfae |
| children |
| rev | line source |
|---|---|
| 0 | 1 #include "wm.h" |
| 2 #include "dwt.h" | |
| 3 #include "dwt_util.h" | |
| 4 #include "pgm.h" | |
| 5 | |
| 6 char *progname; | |
| 7 | |
| 8 void usage(void) { | |
| 9 fprintf(stderr, "usage: %s [-a n] [-e n] [-f n] [-F file] [-h] [-l n] [-n n] [-o file] [-v n] [-t n] -s file file\n\n", progname); | |
| 10 fprintf(stderr, "\t-a n\t\talpha factor\n"); | |
| 11 fprintf(stderr, "\t-e n\t\twavelet filtering method\n"); | |
| 12 fprintf(stderr, "\t-f n\t\tfilter number\n"); | |
| 13 fprintf(stderr, "\t-F file\t\tfilter definition file\n"); | |
| 14 fprintf(stderr, "\t-h\t\tprint usage\n"); | |
| 15 fprintf(stderr, "\t-l n\t\tdecomposition levels\n"); | |
| 16 fprintf(stderr, "\t-n n\t\twatermark length\n"); | |
| 17 fprintf(stderr, "\t-o file\t\tfile for extracted watermark\n"); | |
| 18 fprintf(stderr, "\t-s file\t\toriginal signature file\n"); | |
| 19 fprintf(stderr, "\t-t n\t\tdetection threshold\n"); | |
| 20 fprintf(stderr, "\t-v n\t\tverbosity level\n"); | |
| 21 exit(0); | |
| 22 } | |
| 23 | |
| 24 void wm_subband(Image s, double *w, int n, double t2, int *m, double *z, double *v) { | |
| 25 int i; | |
| 26 | |
| 27 *m = 0; | |
| 28 *z = 0.0; | |
| 29 *v = 0.0; | |
| 30 for (i = 0; i < s->width * s->height; i++) | |
| 31 if (s->data[i] > t2) { | |
| 32 (*z) += (s->data[i] * w[i % n]); | |
| 33 (*v) += fabs(s->data[i]); | |
| 34 (*m)++; | |
| 35 } | |
| 36 } | |
| 37 | |
| 38 int main(int argc, char *argv[]) { | |
| 39 | |
| 40 FILE *in = stdin; | |
| 41 FILE *out = stdout; | |
| 42 FILE *sig = NULL; | |
| 43 | |
| 44 gray **input_image; | |
| 45 | |
| 46 char signature_name[MAXPATHLEN]; | |
| 47 char output_name[MAXPATHLEN] = "(stdout)"; | |
| 48 char input_name[MAXPATHLEN] = "(stdin)"; | |
| 49 | |
| 8 | 50 int c; |
| 0 | 51 int i; |
| 52 int n = 0; | |
| 53 int method = -1; | |
| 3 | 54 int level = 0; |
| 0 | 55 int filter = 0; |
| 56 char filter_name[MAXPATHLEN] = ""; | |
| 57 | |
| 58 double alpha = 0.0; | |
| 59 double t2 = 0.0; | |
| 60 | |
| 61 int in_rows, in_cols, in_format; | |
| 62 gray in_maxval; | |
| 63 int rows, cols; | |
| 8 | 64 int row; |
| 0 | 65 |
| 66 double *watermark; | |
| 67 | |
| 68 Image_tree dwts, s; | |
| 69 | |
| 70 int verbose = 0; | |
| 71 | |
| 72 progname = argv[0]; | |
| 73 | |
| 74 pgm_init(&argc, argv); wm_init2(); | |
| 75 | |
| 76 while ((c = getopt(argc, argv, "a:e:f:F:h?l:n:o:s:v:t")) != EOF) { | |
| 77 switch (c) { | |
| 78 case 'a': | |
| 79 alpha = atof(optarg); | |
| 80 if (alpha <= 0.0) { | |
| 81 fprintf(stderr, "%s: alpha factor %f out of range\n", progname, alpha); | |
| 82 exit(1); | |
| 83 } | |
| 84 break; | |
| 85 case 'e': | |
| 86 method = atoi(optarg); | |
| 87 if (method < 0) { | |
| 88 fprintf(stderr, "%s: wavelet filtering method %d out of range\n", progname, method); | |
| 89 exit(1); | |
| 90 } | |
| 91 break; | |
| 92 case 'f': | |
| 93 filter = atoi(optarg); | |
| 94 if (filter <= 0) { | |
| 95 fprintf(stderr, "%s: filter number %d out of range\n", progname, filter); | |
| 96 exit(1); | |
| 97 } | |
| 98 break; | |
| 99 case 'F': | |
| 100 strcpy(filter_name, optarg); | |
| 101 break; | |
| 102 case 'h': | |
| 103 case '?': | |
| 104 usage(); | |
| 105 break; | |
| 106 case 'l': | |
| 3 | 107 level = atoi(optarg); |
| 108 if (level <= 0) { | |
| 8 | 109 fprintf(stderr, "%s: decomposition level %d out of range\n", progname, level); |
| 0 | 110 exit(1); |
| 111 } | |
| 112 break; | |
| 113 | |
| 114 case 'n': | |
| 115 n = atoi(optarg); | |
| 116 if (n < 1 || n > 32000) { | |
| 117 fprintf(stderr, "%s: watermark length %d out of range\n", progname, n); | |
| 118 exit(1); | |
| 119 } | |
| 120 break; | |
| 121 case 'o': | |
| 122 if ((out = fopen(optarg, "w")) == NULL) { | |
| 123 fprintf(stderr, "%s: unable to open output file %s\n", progname, optarg); | |
| 124 exit(1); | |
| 125 } | |
| 126 strcpy(output_name, optarg); | |
| 127 break; | |
| 128 case 's': | |
| 129 if ((sig = fopen(optarg, "r")) == NULL) { | |
| 130 fprintf(stderr, "%s: unable to open signature file %s\n", progname, optarg); | |
| 131 exit(1); | |
| 132 } | |
| 133 strcpy(signature_name, optarg); | |
| 134 break; | |
| 135 case 't': | |
| 136 t2 = atof(optarg); | |
| 137 if (t2 <= 0.0) { | |
| 138 fprintf(stderr, "%s: detection threshold %f out of range\n", progname, t2); | |
| 139 exit(1); | |
| 140 } | |
| 141 break; | |
| 142 case 'v': | |
| 143 verbose = atoi(optarg); | |
| 144 if (verbose < 0) { | |
| 145 fprintf(stderr, "%s: verbosity level %d out of range\n", progname, verbose); | |
| 146 exit(1); | |
| 147 } | |
| 148 break; | |
| 149 } | |
| 150 } | |
| 151 | |
| 152 argc -= optind; | |
| 153 argv += optind; | |
| 154 | |
| 155 if (argc > 1) { | |
| 156 usage(); | |
| 157 exit(1); | |
| 158 } | |
| 159 | |
| 8 | 160 if (argc == 1 && *argv[0] != '-') { |
| 0 | 161 if ((in = fopen(argv[0], "rb")) == NULL) { |
| 162 fprintf(stderr, "%s: unable to open input file %s\n", progname, argv[0]); | |
| 163 exit(1); | |
| 164 } | |
| 165 else | |
| 166 strcpy(input_name, argv[0]); | |
| 8 | 167 } |
| 168 | |
| 0 | 169 if (sig) { |
| 170 char line[32]; | |
| 171 fgets(line, sizeof(line), sig); | |
| 172 if (strspn(line, "DGSG") >= 4) { | |
| 173 fscanf(sig, "%d\n", &n); | |
| 3 | 174 if (level == 0) |
| 175 fscanf(sig, "%d\n", &level); | |
| 0 | 176 else |
| 177 fscanf(sig, "%*d\n"); | |
| 178 if (alpha == 0.0) | |
| 179 fscanf(sig, "%lf\n", &alpha); | |
| 180 else | |
|
16
4987db85cfae
fix another scanf() warning
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
15
diff
changeset
|
181 fscanf(sig, "%*f\n"); |
|
4987db85cfae
fix another scanf() warning
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
15
diff
changeset
|
182 fscanf(sig, "%*f\n"); |
| 0 | 183 if (t2 == 0.0) |
| 184 fscanf(sig, "%lf\n", &t2); | |
| 185 else | |
|
16
4987db85cfae
fix another scanf() warning
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
15
diff
changeset
|
186 fscanf(sig, "%*f\n"); |
| 0 | 187 if (method < 0) |
| 188 fscanf(sig, "%d\n", &method); | |
| 189 else | |
| 190 fscanf(sig, "%*d\n"); | |
| 191 if (filter == 0) | |
| 192 fscanf(sig, "%d\n", &filter); | |
| 193 else | |
| 194 fscanf(sig, "%*d\n"); | |
| 195 if (!strcmp(filter_name, "")) | |
| 15 | 196 fscanf(sig, "%[^\n\r]\n", filter_name); |
| 0 | 197 else |
| 198 fscanf(sig, "%*[^\n\r]\n"); | |
| 199 } | |
| 200 else { | |
| 201 fprintf(stderr, "%s: invalid signature file %s\n", progname, signature_name); | |
| 202 exit(1); | |
| 203 } | |
| 204 } | |
| 205 else { | |
| 206 fprintf(stderr, "%s: signature file not specified, use -s file option\n", progname); | |
| 207 exit(1); | |
| 208 } | |
| 209 | |
| 210 watermark = malloc(n * sizeof(double)); | |
| 211 for (i = 0; i < n; i++) | |
| 212 fscanf(sig, "%lf\n", &watermark[i]); | |
| 213 fclose(sig); | |
| 214 | |
| 215 pgm_readpgminit(in, &in_cols, &in_rows, &in_maxval, &in_format); | |
| 216 | |
| 217 cols = in_cols; | |
| 218 rows = in_rows; | |
| 219 | |
| 220 input_image = pgm_allocarray(in_cols, in_rows); | |
| 221 | |
| 222 for (row = 0; row < in_rows; row++) { | |
| 223 pgm_readpgmrow(in, input_image[row], in_cols, in_maxval, in_format); | |
| 224 } | |
| 225 | |
| 226 fclose(in); | |
| 227 | |
| 3 | 228 init_dwt(cols, rows, filter_name, filter, level, method); |
| 0 | 229 #ifdef POLLEN_STUFF |
| 3 | 230 #include "pollen_stuff.c" |
| 0 | 231 #endif |
| 232 #ifdef PARAM_STUFF | |
| 3 | 233 #include "param_stuff.c" |
| 0 | 234 #endif |
| 235 | |
| 236 dwts = fdwt(input_image); | |
| 237 | |
| 238 fprintf(out, "DGWM\n"); | |
| 3 | 239 fprintf(out, "%d\n", level); |
| 0 | 240 fprintf(out, "%f\n", alpha); |
| 241 | |
| 3 | 242 for (i = 0, s = dwts; i < level; i++, s = s->coarse) { |
| 0 | 243 int m; |
| 244 double z, v; | |
| 245 | |
| 246 wm_subband(s->horizontal->image, watermark, n, t2, &m, &z, &v); | |
| 247 fprintf(out, "%d %f %f\n", m, z, v); | |
| 248 wm_subband(s->vertical->image, watermark, n, t2, &m, &z, &v); | |
| 249 fprintf(out, "%d %f %f\n", m, z, v); | |
| 250 wm_subband(s->diagonal->image, watermark, n, t2, &m, &z, &v); | |
| 251 fprintf(out, "%d %f %f\n", m, z, v); | |
| 252 } | |
| 253 | |
| 254 fclose(out); | |
| 255 | |
| 256 free(watermark); | |
| 257 | |
| 258 pgm_freearray(input_image, rows); | |
| 259 | |
| 260 exit(0); | |
| 261 } |