Mercurial > hg > wm
annotate Meerwald-dir/cmp_dwt.c @ 24:9f20bce6184e v0.7
move directories, support netpbm 11
| author | Peter Meerwald-Stadler <pmeerw@pmeerw.net> |
|---|---|
| date | Fri, 20 Dec 2024 13:08:59 +0100 |
| parents | Meerwald/cmp_dwt.c@f83ef905a63d |
| children |
| rev | line source |
|---|---|
| 0 | 1 #include "wm.h" |
| 2 #include "dwt.h" | |
| 3 #include "coeff.h" | |
| 4 #include "gray.h" | |
|
24
9f20bce6184e
move directories, support netpbm 11
Peter Meerwald-Stadler <pmeerw@pmeerw.net>
parents:
8
diff
changeset
|
5 #include "netpbm/pgm.h" |
| 0 | 6 #include "dwt_util.h" |
| 7 | |
| 8 char *progname; | |
| 9 | |
| 10 void usage(void) { | |
| 11 fprintf(stderr, "usage: %s [-e n] [-f n] [-F file] [-h] [-l n] [-o file] [-pP] [-s name,..] -i file file\n\n", progname); | |
| 12 fprintf(stderr, "\t-e n\t\twavelet filtering method (default: 2)\n"); | |
| 13 fprintf(stderr, "\t-f n\t\tfilter number (default: 2)\n"); | |
| 14 fprintf(stderr, "\t-F file\t\tfilter definition file (default: filter.dat\n"); | |
| 15 fprintf(stderr, "\t-h\t\tprint usage\n"); | |
| 16 fprintf(stderr, "\t-i file\t\toriginal image file\n"); | |
| 17 fprintf(stderr, "\t-l n\t\tmax. decomposition level (default: 0 = max)\n"); | |
| 18 fprintf(stderr, "\t-m n\t\tmultiplication factor (default: 0 = auto)\n"); | |
| 19 fprintf(stderr, "\t-o file\t\toutput file\n"); | |
| 20 fprintf(stderr, "\t-p\t\tprint PSNR, RMS and MSE\n"); | |
| 21 fprintf(stderr, "\t-P\t\tonly print PSNR, RMS and MSE, no difference image\n"); | |
| 22 fprintf(stderr, "\t-q\t\tprint PSNR, RMS and MSE per subband\n"); | |
| 23 fprintf(stderr, "\t-s name,...\tsubband/level (default: all subbands)\n"); | |
| 24 fprintf(stderr, "\t-v n\t\tverbosity level\n"); | |
| 25 exit(0); | |
| 26 } | |
| 27 | |
| 28 void process_subband_var(gray **output, int cols, int rows, Image_tree p, Image_tree q, int type, double min, double max, gray maxval) { | |
| 29 int col, row, startcol, startrow; | |
| 30 | |
| 31 if (!p || !q) return; | |
| 32 | |
| 33 calc_subband_location(cols, rows, type, p->level, &startcol, &startrow); | |
| 34 | |
| 35 for (row = 0; row < p->image->height; row++) | |
| 36 for (col = 0; col < p->image->width; col++) { | |
| 37 double diff = fabs(get_pixel(p->image, col, row) - get_pixel(q->image, col, row)); | |
| 38 output[startrow + row][startcol + col] = PIXELRANGE((double) (diff - min) / (double) (max - min) * maxval); | |
| 39 } | |
| 40 } | |
| 41 | |
| 42 void process_subband_fixed(gray **output, int cols, int rows, Image_tree p, Image_tree q, int type, double m) { | |
| 43 int col, row, startcol, startrow; | |
| 44 | |
| 45 if (!p || !q) return; | |
| 46 | |
| 47 calc_subband_location(cols, rows, type, p->level, &startcol, &startrow); | |
| 48 | |
| 49 for (row = 0; row < p->image->height; row++) | |
| 50 for (col = 0; col < p->image->width; col++) { | |
| 51 double diff = fabs(get_pixel(p->image, col, row) - get_pixel(q->image, col, row)); | |
| 52 output[startrow + row][startcol + col] = PIXELRANGE(diff * m); | |
| 53 } | |
| 54 } | |
| 55 | |
| 56 void print_subband_psnr(int type, int level, double error, int cols, int rows, double min, double max, FILE *print) { | |
| 57 double mse = error / (double) (cols * rows); | |
| 58 double rmse = sqrt(mse); | |
| 59 double psnr = 20.0 * log(255.0 / rmse) / log(10.0); | |
| 60 int startcol, startrow; | |
| 61 | |
| 62 calc_subband_location(cols << level, rows << level, type, level, &startcol, &startrow); | |
| 63 fprintf(print, "%s%d (%d x %d) at %d x %d\n", subband_name(type), level, cols, rows, startcol, startrow); | |
| 64 if (mse > 0.0) | |
| 65 fprintf(print, " PSNR: %lf dB\n", psnr); | |
| 66 else | |
| 67 fprintf(print, " PSNR: inf\n"); | |
| 68 fprintf(print, " RMS: %lf\n", rmse); | |
| 69 fprintf(print, " MSE: %lf\n", mse); | |
| 70 fprintf(print, " dmin, dmax: %lf, %lf\n", min, max); | |
| 71 } | |
| 72 | |
| 73 int main(int argc, char *argv[]) { | |
| 74 FILE *in = stdin; | |
| 75 FILE *out = stdout; | |
| 76 FILE *orig = NULL; | |
| 77 FILE *print; | |
| 78 | |
| 79 gray **input_image; | |
| 80 gray **orig_image; | |
| 81 Image_tree input_dwts, p; | |
| 82 Image_tree orig_dwts, q; | |
| 83 gray **output; | |
| 84 | |
| 85 char output_name[MAXPATHLEN] = "(stdout)"; | |
| 86 char input_name[MAXPATHLEN] = "(stdin)"; | |
| 87 char orig_name[MAXPATHLEN]; | |
| 88 char *subband_list = NULL; | |
| 89 | |
| 90 int in_cols, in_rows, in_format; | |
| 91 gray in_maxval; | |
| 92 int orig_cols, orig_rows, orig_format; | |
| 93 gray orig_maxval; | |
| 94 int cols, rows, format; | |
| 95 gray maxval; | |
| 8 | 96 int row; |
| 0 | 97 |
| 98 int no_orig = 0; | |
| 99 int m = 0; | |
| 100 int c; | |
| 101 int maxlevel = 0; | |
| 102 | |
| 103 int filter = 1; | |
| 104 int method = 2; | |
| 105 int levels; | |
| 106 char filter_name[MAXPATHLEN] = "filter.dat"; | |
| 107 | |
| 108 double error = 0.0; | |
| 109 int print_psnr = 0; | |
| 110 int print_psnr_subband = 0; | |
| 111 int print_psnr_only = 0; | |
| 112 | |
| 113 double min, max; | |
| 114 | |
| 115 int verbose = 0; | |
| 116 | |
| 117 progname = argv[0]; | |
| 118 | |
| 119 pgm_init(&argc, argv); wm_init(); | |
| 120 | |
| 121 while ((c = getopt(argc, argv, "e:f:F:h?i:l:m:o:pPqs:v:")) != EOF) { | |
| 122 switch (c) { | |
| 123 case 'h': | |
| 124 case '?': | |
| 125 usage(); | |
| 126 break; | |
| 127 case 'e': | |
| 128 method = atoi(optarg); | |
| 129 if (method < 0) { | |
| 130 fprintf(stderr, "%s: wavelet filtering method %d out of range\n", progname, method); | |
| 131 exit(1); | |
| 132 } | |
| 133 break; | |
| 134 case 'f': | |
| 135 filter = atoi(optarg); | |
| 136 if (filter <= 0) { | |
| 137 fprintf(stderr, "%s: filter number %d out of range\n", progname, filter); | |
| 138 exit(1); | |
| 139 } | |
| 140 break; | |
| 141 case 'F': | |
| 142 strcpy(filter_name, optarg); | |
| 143 break; | |
| 144 case 'i': | |
| 145 if (!strcmp(optarg, "-")) { | |
| 146 no_orig = 1; | |
| 147 strcpy(orig_name, "(zero)"); | |
| 148 } | |
| 149 else { | |
| 150 if ((orig = fopen(optarg, "rb")) == NULL) { | |
| 151 fprintf(stderr, "%s: unable to open original image file %s\n", progname, optarg); | |
| 152 exit(1); | |
| 153 } | |
| 154 strcpy(orig_name, optarg); | |
| 155 } | |
| 156 break; | |
| 157 case 'l': | |
| 158 maxlevel = atoi(optarg); | |
| 159 if (maxlevel < 0) { | |
| 160 fprintf(stderr, "%s: decomposition level %d out of range\n", progname, maxlevel); | |
| 161 exit(1); | |
| 162 } | |
| 163 break; | |
| 164 case 'm': | |
| 165 m = atoi(optarg); | |
| 166 if (m < -1) { | |
| 167 fprintf(stderr, "%s: multiplication factor %d out of range\n", progname, m); | |
| 168 exit(1); | |
| 169 } | |
| 170 break; | |
| 171 case 'o': | |
| 172 if ((out = fopen(optarg, "wb")) == NULL) { | |
| 173 fprintf(stderr, "%s: unable to open output file %s\n", progname, optarg); | |
| 174 exit(1); | |
| 175 } | |
| 176 strcpy(output_name, optarg); | |
| 177 break; | |
| 178 case 'p': | |
| 179 print_psnr = 1; | |
| 180 break; | |
| 181 case 'P': | |
| 182 print_psnr_only = 1; | |
| 183 break; | |
| 184 case 'q': | |
| 185 print_psnr = 1; | |
| 186 print_psnr_subband = 1; | |
| 187 case 's': | |
| 188 subband_list = optarg; | |
| 189 break; | |
| 190 case 'v': | |
| 191 verbose = atoi(optarg); | |
| 192 if (verbose < 0) { | |
| 193 fprintf(stderr, "%s: verbosity level %d out of range\n", progname, verbose); | |
| 194 exit(1); | |
| 195 } | |
| 196 break; | |
| 197 | |
| 198 } | |
| 199 } | |
| 200 | |
| 201 argc -= optind; | |
| 202 argv += optind; | |
| 203 | |
| 204 if (argc > 1) { | |
| 205 usage(); | |
| 206 exit(1); | |
| 207 } | |
| 208 | |
| 209 print = print_psnr_only ? out : stderr; | |
| 210 | |
| 8 | 211 if (argc == 1 && *argv[0] != '-') { |
| 0 | 212 if ((in = fopen(argv[0], "rb")) == NULL) { |
| 213 fprintf(stderr, "%s: unable to open input file %s\n", progname, argv[0]); | |
| 214 exit(1); | |
| 215 } | |
| 216 else | |
| 217 strcpy(input_name, argv[0]); | |
| 8 | 218 } |
| 219 | |
| 0 | 220 if (!orig && !no_orig) { |
| 221 fprintf(stderr, "%s: original image file not specified, using zero image\n", progname); | |
| 222 strcpy(orig_name, "(zero)"); | |
| 223 no_orig = 1; | |
| 224 } | |
| 225 | |
| 226 pgm_readpgminit(in, &in_cols, &in_rows, &in_maxval, &in_format); | |
| 227 | |
| 228 if (!no_orig) { | |
| 229 pgm_readpgminit(orig, &orig_cols, &orig_rows, &orig_maxval, &orig_format); | |
| 230 if (in_cols != orig_cols || in_rows != orig_rows) { | |
| 231 fprintf(stderr, "%s: input image %s does not match dimensions of original image %s\n", progname, input_name, orig_name); | |
| 232 exit(1); | |
| 233 } | |
| 234 } | |
| 235 | |
| 236 cols = in_cols; | |
| 237 rows = in_rows; | |
| 238 format = in_format; | |
| 239 maxval = in_maxval; | |
| 240 | |
| 241 input_image = pgm_allocarray(cols, rows); | |
| 242 orig_image = pgm_allocarray(cols, rows); | |
| 243 | |
| 244 output = alloc_grays(cols, rows); | |
| 245 | |
| 246 if (no_orig) { | |
| 247 for (row = 0; row < rows; row++) { | |
| 248 pgm_readpgmrow(in, input_image[row], cols, maxval, format); | |
| 249 bzero(orig_image[row], sizeof(gray) * cols); | |
| 250 } | |
| 251 } | |
| 252 else { | |
| 253 for (row = 0; row < rows; row++) { | |
| 254 pgm_readpgmrow(in, input_image[row], in_cols, in_maxval, in_format); | |
| 255 pgm_readpgmrow(orig, orig_image[row], orig_cols, orig_maxval, orig_format); | |
| 256 } | |
| 257 } | |
| 258 | |
| 259 fclose(in); | |
| 260 if (!no_orig) | |
| 261 fclose(orig); | |
| 262 | |
| 263 // complete decomposition | |
| 264 levels = find_deepest_level(cols, rows) - 1; | |
| 265 if (!maxlevel) maxlevel = levels; | |
| 266 if (maxlevel > levels) { | |
| 267 fprintf(stderr, "%s: decomposition level %d not possible (max. %d), image size is %d x %d\n", progname, maxlevel, levels, cols, rows); | |
| 268 exit(1); | |
| 269 } | |
| 270 | |
| 271 init_dwt(cols, rows, filter_name, filter, maxlevel, method); | |
| 272 | |
| 273 input_dwts = fdwt(input_image); | |
| 274 orig_dwts = fdwt(orig_image); | |
| 275 | |
| 276 p = input_dwts; | |
| 277 q = orig_dwts; | |
| 278 min = 10000000.0; | |
| 279 max = 0.0; | |
| 280 error = 0.0; | |
| 281 while (p->coarse && q->coarse) { | |
| 282 double localmin, localmax, localerror; | |
| 283 | |
| 284 if (subband_in_list(subband_list, HORIZONTAL, p->horizontal->level)) { | |
| 285 calc_subband(p->horizontal, q->horizontal, HORIZONTAL, &localmin, &localmax, &localerror); | |
| 286 if (m == -1) process_subband_var(output, cols, rows, p->horizontal, q->horizontal, HORIZONTAL, localmin, localmax, maxval); | |
| 287 if (localmin < min) min = localmin; | |
| 288 if (localmax > max) max = localmax; | |
| 289 error += localerror; | |
| 290 if (print_psnr_subband) | |
| 291 print_subband_psnr(HORIZONTAL, p->horizontal->level, error, p->horizontal->image->width, p->horizontal->image->height, localmin, localmax, print); | |
| 292 } | |
| 293 else if (verbose > 5) | |
| 294 fprintf(stderr, "%s: subband %s%d skipped\n", progname, subband_name(HORIZONTAL), p->horizontal->level); | |
| 295 | |
| 296 if (subband_in_list(subband_list, VERTICAL, p->vertical->level)) { | |
| 297 calc_subband(p->vertical, q->vertical, VERTICAL, &localmin, &localmax, &localerror); | |
| 298 if (m == -1) process_subband_var(output, cols, rows, p->vertical, q->vertical, VERTICAL, localmin, localmax, maxval); | |
| 299 if (localmin < min) min = localmin; | |
| 300 if (localmax > max) max = localmax; | |
| 301 error += localerror; | |
| 302 if (print_psnr_subband) | |
| 303 print_subband_psnr(VERTICAL, p->vertical->level, error, p->vertical->image->width, p->vertical->image->height, localmin, localmax, print); | |
| 304 } | |
| 305 else if (verbose > 5) | |
| 306 fprintf(stderr, "%s: subband %s%d skipped\n", progname, subband_name(VERTICAL), p->vertical->level); | |
| 307 | |
| 308 if (subband_in_list(subband_list, DIAGONAL, p->diagonal->level)) { | |
| 309 calc_subband(p->diagonal, q->diagonal, DIAGONAL, &localmin, &localmax, &localerror); | |
| 310 if (m == -1) process_subband_var(output, cols, rows, p->diagonal, q->diagonal, DIAGONAL, localmin, localmax, maxval); | |
| 311 if (localmin < min) min = localmin; | |
| 312 if (localmax > max) max = localmax; | |
| 313 error += localerror; | |
| 314 if (print_psnr_subband) | |
| 315 print_subband_psnr(DIAGONAL, p->vertical->level, error, p->diagonal->image->width, p->diagonal->image->height, localmin, localmax, print); | |
| 316 } | |
| 317 else if (verbose > 5) | |
| 318 fprintf(stderr, "%s: subband %s%d skipped\n", progname, subband_name(DIAGONAL), p->diagonal->level); | |
| 319 | |
| 320 p = p->coarse; | |
| 321 q = q->coarse; | |
| 322 | |
| 323 if (!p->coarse) { | |
| 324 if (subband_in_list(subband_list, COARSE, p->level)) { | |
| 325 calc_subband(p, q, COARSE, &localmin, &localmax, &localerror); | |
| 326 if (m == -1) process_subband_var(output, cols, rows, p, q, COARSE, localmin, localmax, maxval); | |
| 327 if (localmin < min) min = localmin; | |
| 328 if (localmax > max) max = localmax; | |
| 329 error += localerror; | |
| 330 if (print_psnr_subband) | |
| 331 print_subband_psnr(COARSE, p->level, error, p->image->width, p->image->height, localmin, localmax, print); | |
| 332 } | |
| 333 else if (verbose > 5) | |
| 334 fprintf(stderr, "%s: subband %s%d skipped\n", progname, subband_name(COARSE), p->level); | |
| 335 } | |
| 336 } | |
| 337 | |
| 338 p = input_dwts; | |
| 339 q = orig_dwts; | |
| 340 while (p->coarse && q->coarse) { | |
| 341 if (m > 0) { | |
| 342 process_subband_fixed(output, cols, rows, p->horizontal, q->horizontal, HORIZONTAL, m); | |
| 343 process_subband_fixed(output, cols, rows, p->vertical, q->vertical, VERTICAL, m); | |
| 344 process_subband_fixed(output, cols, rows, p->diagonal, q->diagonal, DIAGONAL, m); | |
| 345 } | |
| 346 else if (m == 0) { | |
| 347 process_subband_var(output, cols, rows, p->horizontal, q->horizontal, HORIZONTAL, min, max, maxval); | |
| 348 process_subband_var(output, cols, rows, p->vertical, q->vertical, VERTICAL, min, max, maxval); | |
| 349 process_subband_var(output, cols, rows, p->diagonal, q->diagonal, DIAGONAL, min, max, maxval); | |
| 350 } | |
| 351 | |
| 352 p = p->coarse; | |
| 353 q = q->coarse; | |
| 354 | |
| 355 if (!p->coarse) { | |
| 356 if (m > 0) | |
| 357 process_subband_fixed(output, cols, rows, p, q, COARSE, m); | |
| 358 else if (m == 0) | |
| 359 process_subband_var(output, cols, rows, p, q, COARSE, min, max, maxval); | |
| 360 } | |
| 361 } | |
| 362 | |
| 363 if (!print_psnr_only) { | |
| 364 pgm_writepgminit(out, cols, rows, maxval, 0); | |
| 365 for (row = 0; row < rows; row++) | |
| 366 pgm_writepgmrow(out, output[row], cols, maxval, 0); | |
| 367 | |
| 368 fclose(out); | |
| 369 } | |
| 370 | |
| 371 pgm_freearray(input_image, rows); | |
| 372 pgm_freearray(orig_image, rows); | |
| 373 free_grays(output); | |
| 374 | |
| 375 if (print_psnr || print_psnr_only) { | |
| 376 double mse = error / (double) (cols * rows); | |
| 377 double rmse = sqrt(mse); | |
| 378 double psnr = 20.0 * log(255.0 / rmse) / log(10.0); | |
| 379 if (mse > 0.0) | |
| 380 fprintf(print, "PSNR: %lf dB\n", psnr); | |
| 381 else | |
| 382 fprintf(print, "PSNR: inf\n"); | |
| 383 fprintf(print, "RMS: %lf\n", rmse); | |
| 384 fprintf(print, "MSE: %lf\n", mse); | |
| 385 fprintf(print, "dmin, dmax: %lf, %lf\n", min, max); | |
| 386 } | |
| 387 | |
| 388 exit(0); | |
| 389 } |