Mercurial > hg > wm
comparison Meerwald/wm_dugad_d.c @ 0:be303a3f5ea8
import
| author | Peter Meerwald <pmeerw@cosy.sbg.ac.at> |
|---|---|
| date | Sun, 12 Aug 2007 13:14:34 +0200 |
| parents | |
| children | acb6967ee76d |
comparison
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| -1:000000000000 | 0:be303a3f5ea8 |
|---|---|
| 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 | |
| 50 int c, w; | |
| 51 int i; | |
| 52 int n = 0; | |
| 53 int method = -1; | |
| 54 int levels = 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; | |
| 64 int row, col; | |
| 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': | |
| 107 levels = atoi(optarg); | |
| 108 if (levels <= 0) { | |
| 109 fprintf(stderr, "%s: decomposition level %d out of range\n", levels); | |
| 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 | |
| 160 if (argc == 1 && *argv[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]); | |
| 167 | |
| 168 if (sig) { | |
| 169 char line[32]; | |
| 170 fgets(line, sizeof(line), sig); | |
| 171 if (strspn(line, "DGSG") >= 4) { | |
| 172 fscanf(sig, "%d\n", &n); | |
| 173 if (levels == 0) | |
| 174 fscanf(sig, "%d\n", &levels); | |
| 175 else | |
| 176 fscanf(sig, "%*d\n"); | |
| 177 if (alpha == 0.0) | |
| 178 fscanf(sig, "%lf\n", &alpha); | |
| 179 else | |
| 180 fscanf(sig, "%*lf\n"); | |
| 181 fscanf(sig, "%*lf\n"); | |
| 182 if (t2 == 0.0) | |
| 183 fscanf(sig, "%lf\n", &t2); | |
| 184 else | |
| 185 fscanf(sig, "%*lf\n"); | |
| 186 if (method < 0) | |
| 187 fscanf(sig, "%d\n", &method); | |
| 188 else | |
| 189 fscanf(sig, "%*d\n"); | |
| 190 if (filter == 0) | |
| 191 fscanf(sig, "%d\n", &filter); | |
| 192 else | |
| 193 fscanf(sig, "%*d\n"); | |
| 194 if (!strcmp(filter_name, "")) | |
| 195 fscanf(sig, "%[^\n\r]\n", &filter_name); | |
| 196 else | |
| 197 fscanf(sig, "%*[^\n\r]\n"); | |
| 198 } | |
| 199 else { | |
| 200 fprintf(stderr, "%s: invalid signature file %s\n", progname, signature_name); | |
| 201 exit(1); | |
| 202 } | |
| 203 } | |
| 204 else { | |
| 205 fprintf(stderr, "%s: signature file not specified, use -s file option\n", progname); | |
| 206 exit(1); | |
| 207 } | |
| 208 | |
| 209 watermark = malloc(n * sizeof(double)); | |
| 210 for (i = 0; i < n; i++) | |
| 211 fscanf(sig, "%lf\n", &watermark[i]); | |
| 212 fclose(sig); | |
| 213 | |
| 214 pgm_readpgminit(in, &in_cols, &in_rows, &in_maxval, &in_format); | |
| 215 | |
| 216 cols = in_cols; | |
| 217 rows = in_rows; | |
| 218 | |
| 219 input_image = pgm_allocarray(in_cols, in_rows); | |
| 220 | |
| 221 for (row = 0; row < in_rows; row++) { | |
| 222 pgm_readpgmrow(in, input_image[row], in_cols, in_maxval, in_format); | |
| 223 } | |
| 224 | |
| 225 fclose(in); | |
| 226 | |
| 227 init_dwt(cols, rows, filter_name, filter, levels, method); | |
| 228 #ifdef POLLEN_STUFF | |
| 229 #include "pollen_stuff.xxx" | |
| 230 #endif | |
| 231 #ifdef PARAM_STUFF | |
| 232 #include "param_stuff.xxx" | |
| 233 #endif | |
| 234 | |
| 235 dwts = fdwt(input_image); | |
| 236 | |
| 237 fprintf(out, "DGWM\n"); | |
| 238 fprintf(out, "%d\n", levels); | |
| 239 fprintf(out, "%f\n", alpha); | |
| 240 | |
| 241 for (i = 0, s = dwts; i < levels; i++, s = s->coarse) { | |
| 242 int m; | |
| 243 double z, v; | |
| 244 | |
| 245 wm_subband(s->horizontal->image, watermark, n, t2, &m, &z, &v); | |
| 246 fprintf(out, "%d %f %f\n", m, z, v); | |
| 247 wm_subband(s->vertical->image, watermark, n, t2, &m, &z, &v); | |
| 248 fprintf(out, "%d %f %f\n", m, z, v); | |
| 249 wm_subband(s->diagonal->image, watermark, n, t2, &m, &z, &v); | |
| 250 fprintf(out, "%d %f %f\n", m, z, v); | |
| 251 } | |
| 252 | |
| 253 fclose(out); | |
| 254 | |
| 255 free(watermark); | |
| 256 | |
| 257 pgm_freearray(input_image, rows); | |
| 258 | |
| 259 exit(0); | |
| 260 } |