annotate Meerwald/wm_zhu_d.c @ 4:9cf6ec970448 v0.5

mention filter param.
author Peter Meerwald <pmeerw@cosy.sbg.ac.at>
date Tue, 14 Aug 2007 21:13:11 +0200
parents acb6967ee76d
children f83ef905a63d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
1 #include "wm.h"
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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2 #include "dwt.h"
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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3 #include "pgm.h"
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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4
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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5 char *progname;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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6
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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7 void usage(void) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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8 fprintf(stderr, "usage: %s [-a n] [-e n] [-f n] [-F file] [-h] [-l n] [-o file] [-v n] -s file -i file file\n\n", progname);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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9 fprintf(stderr, "\t-a n\t\talpha factor\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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10 fprintf(stderr, "\t-b n\t\tbeta factor\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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11 fprintf(stderr, "\t-e n\t\twavelet filtering method\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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12 fprintf(stderr, "\t-f n\t\tfilter number\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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13 fprintf(stderr, "\t-F file\t\tfilter definition file\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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14 fprintf(stderr, "\t-h\t\tprint usage\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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15 fprintf(stderr, "\t-i file\t\toriginal image file\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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16 fprintf(stderr, "\t-l n\t\tdecomposition level\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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17 fprintf(stderr, "\t-o file\t\tfile for extracted watermark\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
18 fprintf(stderr, "\t-s file\t\toriginal signature file\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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19 fprintf(stderr, "\t-v n\t\tverbosity level\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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20 exit(0);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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21 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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22
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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23 void write_mark(FILE *out, double watermark[], int n) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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24 int i;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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25
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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26 fprintf(out, "%d\n", n);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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27 for (i = 0; i < n; i++)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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28 fprintf(out, "%f\n", watermark[i]);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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29 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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30
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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31 int main(int argc, char *argv[]) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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32
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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33 FILE *in = stdin;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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34 FILE *out = stdout;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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35 FILE *orig = NULL;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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36 FILE *sig = NULL;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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37
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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38 gray **input_image;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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39 gray **orig_image;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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40
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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41 char signature_name[MAXPATHLEN];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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42 char output_name[MAXPATHLEN] = "(stdout)";
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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43 char input_name[MAXPATHLEN] = "(stdin)";
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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44 char orig_name[MAXPATHLEN];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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45
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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46 int c, w;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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47 int i;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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48 int n = 0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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49 int method = -1;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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50 int filter = 0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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51 char filter_name[MAXPATHLEN] = "";
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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52
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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53 int level = 0, levels;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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54 double alpha = 0.0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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55
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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56 int in_rows, in_cols, in_format;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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57 gray in_maxval;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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58 int orig_rows, orig_cols, orig_format;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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59 gray orig_maxval;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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60 int rows, cols;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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61 int row, col;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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62
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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63 double *watermark;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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64
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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65 Image_tree input_dwts, orig_dwts, p, q;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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66
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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67 int verbose = 0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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68
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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69 progname = argv[0];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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70
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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71 pgm_init(&argc, argv); wm_init2();
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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72
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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73 while ((c = getopt(argc, argv, "a:e:f:F:h?i:l:o:s:v:")) != EOF) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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74 switch (c) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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75 case 'a':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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76 alpha = atof(optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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77 if (alpha <= 0.0) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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78 fprintf(stderr, "%s: alpha factor %f out of range\n", progname, alpha);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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79 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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80 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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81 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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82 case 'e':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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83 method = atoi(optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
84 if (method < 0) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
85 fprintf(stderr, "%s: wavelet filtering method %d out of range\n", progname, method);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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86 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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87 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
88 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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89 case 'f':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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90 filter = atoi(optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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91 if (filter <= 0) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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92 fprintf(stderr, "%s: filter number %d out of range\n", progname, filter);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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93 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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94 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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95 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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96 case 'F':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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97 strcpy(filter_name, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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98 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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99 case 'h':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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100 case '?':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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101 usage();
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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102 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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103 case 'i':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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104 if ((orig = fopen(optarg, "rb")) == NULL) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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105 fprintf(stderr, "%s: unable to open original image file %s\n", progname, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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106 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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107 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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108 strcpy(orig_name, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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109 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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110 case 'l':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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111 level = atoi(optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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112 if (level <= 0) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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113 fprintf(stderr, "%s: decomposition level %d out of range\n", progname, level);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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114 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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115 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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116 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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117 case 'o':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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118 if ((out = fopen(optarg, "w")) == NULL) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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119 fprintf(stderr, "%s: unable to open output file %s\n", progname, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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120 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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121 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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122 strcpy(output_name, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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123 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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124 case 's':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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125 if ((sig = fopen(optarg, "r")) == NULL) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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126 fprintf(stderr, "%s: unable to open signature file %s\n", progname, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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127 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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128 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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129 strcpy(signature_name, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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130 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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131 case 'v':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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132 verbose = atoi(optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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133 if (verbose < 0) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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134 fprintf(stderr, "%s: verbosity level %d out of range\n", progname, verbose);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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135 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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136 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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137 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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138 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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139 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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140
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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141 argc -= optind;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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142 argv += optind;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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143
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
144 if (argc > 1) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
145 usage();
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
146 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
147 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
148
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
149 if (argc == 1 && *argv[0] != '-')
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
150 if ((in = fopen(argv[0], "rb")) == NULL) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
151 fprintf(stderr, "%s: unable to open input file %s\n", progname, argv[0]);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
152 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
153 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
154 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
155 strcpy(input_name, argv[0]);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
156
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
157 if (!orig) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
158 fprintf(stderr, "%s: original image file not specified, use -i file option\n", progname);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
159 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
160 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
161
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
162 if (sig) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
163 char line[32];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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164 fgets(line, sizeof(line), sig);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
165 if (strspn(line, "ZHSG") >= 4) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
166 fscanf(sig, "%d\n", &n);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
167 if (alpha == 0.0)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
168 fscanf(sig, "%lf\n", &alpha);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
169 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
170 fscanf(sig, "%*lf\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
171 if (level == 0)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
172 fscanf(sig, "%d\n", &level);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
173 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
174 fscanf(sig, "%*d\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
175 if (method < 0)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
176 fscanf(sig, "%d\n", &method);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
177 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
178 fscanf(sig, "%*d\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
179 if (filter == 0)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
180 fscanf(sig, "%d\n", &filter);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
181 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
182 fscanf(sig, "%*d\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
183 if (!strcmp(filter_name, ""))
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
184 fscanf(sig, "%[^\n\r]\n", &filter_name);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
185 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
186 fscanf(sig, "%*[^\n\r]\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
187 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
188 else {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
189 fprintf(stderr, "%s: invalid signature file %s\n", progname, signature_name);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
190 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
191 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
192 fclose(sig);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
193 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
194 else {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
195 fprintf(stderr, "%s: signature file not specified, use -s file option\n", progname);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
196 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
197 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
198
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
199 pgm_readpgminit(in, &in_cols, &in_rows, &in_maxval, &in_format);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
200 pgm_readpgminit(orig, &orig_cols, &orig_rows, &orig_maxval, &orig_format);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
201
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
202 if (in_cols != orig_cols || in_rows != orig_rows) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
203 fprintf(stderr, "%s: input image %s does not match dimensions of original image %s\n", progname, input_name, orig_name);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
204 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
205 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
206
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
207 cols = in_cols;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
208 rows = in_rows;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
209
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
210 input_image = pgm_allocarray(in_cols, in_rows);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
211 orig_image = pgm_allocarray(orig_cols, orig_rows);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
212
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
213 for (row = 0; row < in_rows; row++) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
214 pgm_readpgmrow(in, input_image[row], in_cols, in_maxval, in_format);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
215 pgm_readpgmrow(orig, orig_image[row], orig_cols, orig_maxval, orig_format);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
216 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
217
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
218 fclose(in);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
219 fclose(orig);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
220
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
221 // complete decomposition
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
222 levels = find_deepest_level(cols, rows) - 1;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
223 if (level > levels) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
224 fprintf(stderr, "%s: decomposition level %d not possible (max. %d), image size is %d x %d\n", progname, level, levels, cols, rows);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
225 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
226 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
227
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
228 init_dwt(cols, rows, filter_name, filter, levels, method);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
229 #ifdef POLLEN_STUFF
3
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents: 0
diff changeset
230 #include "pollen_stuff.c"
0
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
231 #endif
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
232 #ifdef PARAM_STUFF
3
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents: 0
diff changeset
233 #include "param_stuff.c"
0
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
234 #endif
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
235
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
236 input_dwts = fdwt(input_image);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
237 orig_dwts = fdwt(orig_image);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
238
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
239 watermark = malloc(n * sizeof(double));
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
240 if (!watermark) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
241 fprintf(stderr, "%s: malloc() failed\n\n", progname);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
242 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
243 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
244
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
245 fprintf(out, "ZHWM\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
246 fprintf(out, "%d\n", n);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
247 fprintf(out, "%d\n", level);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
248
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
249 p = input_dwts;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
250 q = orig_dwts;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
251 while (p->coarse && q->coarse) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
252 double *collected_coeffs, *largest;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
253 int subband_size = q->horizontal->image->size;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
254 int maxselect = MIN(3 * subband_size, n + 1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
255 double threshold;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
256
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
257 collected_coeffs = malloc(3 * subband_size * sizeof(double));
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
258 if (!collected_coeffs) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
259 fprintf(stderr, "%s: malloc() failed\n", progname);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
260 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
261 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
262
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
263 for (i = 0; i < subband_size; i++) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
264 collected_coeffs[3 * i + 0] = q->horizontal->image->data[i];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
265 collected_coeffs[3 * i + 1] = q->vertical->image->data[i];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
266 collected_coeffs[3 * i + 2] = q->diagonal->image->data[i];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
267 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
268
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
269 largest = malloc(maxselect * sizeof(double));
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
270 if (!largest) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
271 fprintf(stderr, "%s: malloc() failed\n", progname);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
272 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
273 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
274
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
275 select_largest_coeffs(collected_coeffs, 3 * subband_size, maxselect, largest);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
276 threshold = largest[0];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
277 free(largest);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
278 free(collected_coeffs);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
279
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
280 w = 0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
281 for (i = 0; i < subband_size && w < n; i++) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
282 if (q->horizontal->image->data[i] > threshold)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
283 watermark[w++] = (p->horizontal->image->data[i] / q->horizontal->image->data[i] - 1.0) / alpha;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
284 if (q->vertical->image->data[i] > threshold)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
285 watermark[w++] = (p->vertical->image->data[i] / q->vertical->image->data[i] - 1.0) / alpha;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
286 if (q->diagonal->image->data[i] > threshold)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
287 watermark[w++] = (p->diagonal->image->data[i] / q->diagonal->image->data[i] - 1.0) / alpha;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
288 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
289
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
290 write_mark(out, watermark, w);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
291
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
292 p = p->coarse;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
293 q = q->coarse;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
294 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
295
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
296 fclose(out);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
297
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
298 free(watermark);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
299
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
300 pgm_freearray(input_image, rows);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
301 pgm_freearray(orig_image, rows);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
302
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
303 exit(0);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
304 }

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