|
0
|
1 #include "wm.h"
|
|
|
2 #include "dwt.h"
|
|
|
3 #include "coeff.h"
|
|
|
4 #include "gray.h"
|
|
|
5 #include "pgm.h"
|
|
|
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 }
|
