annotate Meerwald/wm_kund2_d.c @ 8:f83ef905a63d

fixing many warnings increase capacity for coordinates in bruyn fix some uninit. variables
author Peter Meerwald <pmeerw@cosy.sbg.ac.at>
date Tue, 22 Apr 2008 13:36:05 +0200
parents acb6967ee76d
children ad1d224896c5
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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3
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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1 #include "wm.h"
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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2 #include "signature.h"
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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3 #include "dwt.h"
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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4 #include "pgm.h"
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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5
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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6 char *progname;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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7
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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8 void usage(void) {
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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9 fprintf(stderr, "usage: %s [-e n] [-f n] [-F n] [-h] [-l n] [-o file] [-q n] [-s file] [-v n] file\n\n", progname);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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10 fprintf(stderr, "\t-a n\t\toverall embedding strength\n");
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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11 fprintf(stderr, "\t-e n\t\twavelet filtering method\n");
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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12 fprintf(stderr, "\t-f n\t\tfilter number\n");
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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13 fprintf(stderr, "\t-F file\t\tfilter definition file\n");
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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14 fprintf(stderr, "\t-h\t\tprint usage\n");
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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15 fprintf(stderr, "\t-l n\t\tembedding level\n");
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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16 fprintf(stderr, "\t-o file\t\textracted signature file\n");
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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17 fprintf(stderr, "\t-q n\t\tsignature strength\n");
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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18 fprintf(stderr, "\t-s file\t\toriginal signature file\n");
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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19 fprintf(stderr, "\t-v n\t\tverbosity level\n");
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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20 exit(0);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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21 }
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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22
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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23 int main(int argc, char *argv[]) {
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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24
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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25 FILE *in = stdin;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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26 FILE *out = stdout;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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27 FILE *sig = NULL;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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28
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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29 gray **input_image;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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30
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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31 char signature_name[MAXPATHLEN];
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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32 char output_name[MAXPATHLEN] = "(stdout)";
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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33 char input_name[MAXPATHLEN] = "(stdin)";
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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34
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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35 int r, c;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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36 int quality = 0;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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37 int blocksize = 0;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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38 int seed = 0;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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39 int n = 0;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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40 int method = -1;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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41 int filter = 0;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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42 char filter_name[MAXPATHLEN] = "";
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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43 char *binstr;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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44
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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45 int level = 0;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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46 double alpha = 0.0;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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47
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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48 int in_rows, in_cols, in_format;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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49 gray in_maxval;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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50 int rows, cols;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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51 int row, col;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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52
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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53 Image_tree dwts, p;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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54
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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55 int verbose = 0;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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56
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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57 progname = argv[0];
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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58
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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59 pgm_init(&argc, argv);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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60 wm_init();
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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61
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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62 while ((c = getopt(argc, argv, "a:e:f:F:h?l:o:q:s:v:")) != EOF) {
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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63 switch (c) {
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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64 case 'a':
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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65 alpha = atof(optarg);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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66 break;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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67 case 'e':
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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68 method = atoi(optarg);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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69 if (method < 0) {
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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70 fprintf(stderr, "%s: wavelet filtering method %d out of range\n", progname, method);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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71 exit(1);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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72 }
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73 break;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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74 case 'f':
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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75 filter = atoi(optarg);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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76 if (filter <= 0) {
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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77 fprintf(stderr, "%s: filter number %d out of range\n", progname, filter);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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78 exit(1);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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79 }
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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80 break;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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81 case 'F':
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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82 strcpy(filter_name, optarg);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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83 break;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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84 case 'h':
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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85 case '?':
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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86 usage();
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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87 break;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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88 case 'l':
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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89 level = atoi(optarg);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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90 if (level < 1) {
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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91 fprintf(stderr, "%s: embedding level out of range\n", progname);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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92 exit(1);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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93 }
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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94 break;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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95 case 'o':
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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96 if ((out = fopen(optarg, "w")) == NULL) {
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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97 fprintf(stderr, "%s: unable to open output file %s\n", progname, optarg);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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98 exit(1);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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99 }
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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100 strcpy(output_name, optarg);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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101 break;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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102 case 'q':
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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103 quality = atoi(optarg);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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104 if (quality < 1) {
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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105 fprintf(stderr, "%s: quality level %d out of range\n", progname, quality);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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106 exit(1);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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107 }
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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108 break;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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109 case 's':
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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110 if ((sig = fopen(optarg, "r")) == NULL) {
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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111 fprintf(stderr, "%s: unable to open signature file %s\n", progname, optarg);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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112 exit(1);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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113 }
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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114 strcpy(signature_name, optarg);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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115 break;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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116 case 'v':
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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117 verbose = atoi(optarg);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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118 if (verbose < 0) {
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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119 fprintf(stderr, "%s: verbosity level %d out of range\n", progname, verbose);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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120 exit(1);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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121 }
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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122 break;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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123 }
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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124 }
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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125
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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126 argc -= optind;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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127 argv += optind;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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128
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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129 if (argc > 1) {
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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130 usage();
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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131 exit(1);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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132 }
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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133
8
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parents: 3
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134 if (argc == 1 && *argv[0] != '-') {
3
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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135 if ((in = fopen(argv[0], "rb")) == NULL) {
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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136 fprintf(stderr, "%s: unable to open input file %s\n", progname, argv[0]);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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137 exit(1);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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138 }
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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139 else
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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140 strcpy(input_name, argv[0]);
8
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents: 3
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141 }
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parents: 3
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142
3
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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143 if (sig) {
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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144 char line[1024];
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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145 fgets(line, sizeof(line), sig);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
146 if (strspn(line, "KD2SG") >= 5) {
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
147 fscanf(sig, "%d\n", &nbit_signature);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
148 if (quality == 0)
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
149 fscanf(sig, "%d\n", &quality);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
150 else
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
151 fscanf(sig, "%*d\n");
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
152 if (blocksize == 0)
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
153 fscanf(sig, "%d\n", &blocksize);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
154 else
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
155 fscanf(sig, "%*d\n");
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
156 if (method < 0)
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
157 fscanf(sig, "%d\n", &method);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
158 else
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
159 fscanf(sig, "%*d\n");
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
160 if (filter == 0)
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
161 fscanf(sig, "%d\n", &filter);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
162 else
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
163 fscanf(sig, "%*d\n");
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
164 if (!strcmp(filter_name, ""))
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
165 fscanf(sig, "%[^\n\r]\n", &filter_name);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
166 else
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
167 fscanf(sig, "%*[^\n\r]\n");
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
168 if (level == 0)
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
169 fscanf(sig, "%d\n", &level);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
170 else
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
171 fscanf(sig, "%*d\n");
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
172 fscanf(sig, "%d\n", &seed);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
173 srandom(seed);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
174 nbit_signature2 = nbit_signature;
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
175 n_signature = n_signature2 = NBITSTOBYTES(nbit_signature2);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
176 binstr = malloc((nbit_signature2 + 1) * sizeof(char));
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
177 fscanf(sig, "%[01]\n", binstr);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
178 binstr_to_sig2(binstr);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
179 free(binstr);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
180 init_signature_bits();
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
181 }
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
182 else {
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
183 fprintf(stderr, "%s: invalid signature file %s\n", progname, signature_name);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
184 exit(1);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
185 }
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
186 fclose(sig);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
187 }
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
188 else {
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
189 fprintf(stderr, "%s: signature file not specified, use -s file option\n", progname);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
190 exit(1);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
191 }
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
192
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
193 pgm_readpgminit(in, &in_cols, &in_rows, &in_maxval, &in_format);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
194
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
195 cols = in_cols;
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
196 rows = in_rows;
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
197
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
198 if (verbose > 0)
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
199 fprintf(stderr, "%s: extracting %d bits with quality %d from\n"
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
200 " %d x %d host image, decomposition level %d\n",
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
201 progname, nbit_signature, quality, cols, rows, level);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
202
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
203 input_image = pgm_allocarray(in_cols, in_rows);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
204
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
205 for (row = 0; row < in_rows; row++)
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
206 pgm_readpgmrow(in, input_image[row], in_cols, in_maxval, in_format);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
207
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
208 fclose(in);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
209
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
210 init_dwt(cols, rows, filter_name, filter, level, method);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
211 #ifdef POLLEN_STUFF
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
212 #include "pollen_stuff.c"
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
213 #endif
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
214 #ifdef PARAM_STUFF
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
215 #include "param_stuff.c"
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
216 #endif
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
217
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
218 fprintf(out, "KD2WM\n");
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
219 fprintf(out, "%d\n", nbit_signature);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
220
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
221 dwts = fdwt(input_image);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
222
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
223
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
224 p = dwts;
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
225
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
226 // consider each resolution level
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
227 while (p->coarse->level < level) {
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
228 int lwidth = p->vertical->image->width;
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
229 int lheight = p->vertical->image->height;
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
230 int bx, by;
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
231 int nblock;
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
232
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
233 nblock = 0;
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
234 for (bx = 0; bx < lwidth; bx += blocksize) {
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
235 for (by = 0; by < lheight; by += blocksize) {
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
236 int bw = MIN(bx + blocksize, lwidth);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
237 int bh = MIN(by + blocksize, lheight);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
238 int STEP;
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
239
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
240 // start to extracting watermark from beginning at each level
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
241 // get width and height of detail images at current level
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
242
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
243 if (verbose > 1)
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
244 fprintf(stderr, "%s: extracting at level %d now, size %d x %d\n",
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
245 progname, p->coarse->level, lwidth, lheight);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
246
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
247 STEP = ROUND(alpha * (-15.555) + 10.777);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
248 n = 0;
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
249 // consider each coefficient at resolution level
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
250 for (row = by; row < bh - STEP; row += STEP)
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
251 for (col = bx; col < bw - STEP; col += STEP) {
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
252 double h, v, d;
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
253 double *f1 = &h, *f2 = &v, *f3 = &d;
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
254 double delta;
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
255
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
256 // key-dependant coefficient selection
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
257 r = row + 1 + random() % (STEP-2);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
258 c = col + 1 + random() % (STEP-2);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
259
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
260 // get coefficient values, one from each detail image
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
261 h = get_pixel(p->horizontal->image, c, r);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
262 v = get_pixel(p->vertical->image, c, r);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
263 d = get_pixel(p->diagonal->image, c, r);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
264
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
265 // order pointer to coefficient values such that f1 <= f2 <= f3
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
266 #define SWAP(A, B) {double *t = A; A = B; B = t;}
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
267 if (*f1 > *f2) SWAP(f1, f2);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
268 if (*f2 > *f3) SWAP(f2, f3);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
269 if (*f1 > *f2) SWAP(f1, f2);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
270
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
271 // calculate delta, the width of the bins
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
272 delta = (*f3 - *f1) / (double) (2 * quality - 1);
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
273
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
274 // set middle coefficient to closest appropriate bin,
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
275 // according to watermark bit
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
276 if (quality == 1)
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
277 set_signature_bit(n, (*f3 - *f2) < (*f2 - *f1));
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
278 else {
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
279 double l = *f1;
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
280 int i = 0;
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
281 while ((l + delta) < *f2) {
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
282 l += delta;
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
283 i++;
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
284 }
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
285 if (i % 2)
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
286 set_signature_bit(n, (l + delta - *f2) > (*f2 - l));
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
287 else
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
288 set_signature_bit(n, (l + delta - *f2) < (*f2 - l));
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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289 }
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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290
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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291 if (verbose > 2)
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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292 fprintf(stderr, "%s: extracted bit #%d (= %d =? %d) at (%d/%d),\n"
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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293 " f1=%lf, f2=%lf, f3=%lf\n", progname, n,
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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294 get_signature_bit(n), get_signature2_bit(n),
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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295 c, r, *f1, *f2, *f3);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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296 n++;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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297 }
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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298
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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299 nbit_signature = n;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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300 binstr = malloc(sizeof(char) * (nbit_signature + 1));
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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301 sig_to_binstr(binstr);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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302 fprintf(out, "%d\n", nbit_signature);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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303 fprintf(out, "%s\n", binstr);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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304 free(binstr);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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305
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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306 }
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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307 }
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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308 // descend one level
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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309 p = p->coarse;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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310 }
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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311
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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312 fclose(out);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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313
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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314 pgm_freearray(input_image, rows);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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315
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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316 exit(0);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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317 }

Repositories maintained by Peter Meerwald, pmeerw@pmeerw.net.