annotate Meerwald/wm_corvi_e.c @ 3:acb6967ee76d

update to 0.5
author Peter Meerwald <pmeerw@cosy.sbg.ac.at>
date Tue, 14 Aug 2007 21:11:21 +0200
parents be303a3f5ea8
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:
diff changeset
2 #include "dwt.h"
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
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:
diff changeset
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:
diff changeset
8 fprintf(stderr, "usage: %s [-a n] [-e n] [-f n] [-F n] [-h] [-o file] [-v n] -s file file\n\n", progname);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
9 fprintf(stderr, "\t-a n\t\talpha factor/embedding strength\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
10 fprintf(stderr, "\t-e n\t\twavelet filtering method\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
11 fprintf(stderr, "\t-f n\t\tfilter number\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
12 fprintf(stderr, "\t-F file\t\tfilter definition file\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
13 fprintf(stderr, "\t-h\t\tprint usage\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
14 fprintf(stderr, "\t-o file\t\toutput (watermarked) file\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
15 fprintf(stderr, "\t-s file\t\tsignature to embed in input image\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
16 fprintf(stderr, "\t-v n\t\tverbosity level\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
17 exit(0);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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18 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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19
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
20 int main(int argc, char *argv[]) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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21
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
22 FILE *in = stdin;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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23 FILE *out = stdout;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
24 FILE *sig = NULL;
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 char output_name[MAXPATHLEN] = "(stdout)";
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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27 char input_name[MAXPATHLEN] = "(stdin)";
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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28 char signature_name[MAXPATHLEN];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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29
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
30 int c;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
31 int row, col;
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 int n;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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34
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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35 double alpha = 0.0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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36
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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37 int filter = 0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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38 int method = -1;
3
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents: 0
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39 int level = 0;
0
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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40 char filter_name[MAXPATHLEN] = "";
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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41
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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42 int verbose = 0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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43
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
44 gray **image;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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45 Image_tree dwts;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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46
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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47 gray maxval;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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48 int rows, cols, colors, format;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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49
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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50 progname = argv[0];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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51
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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52 pgm_init(&argc, argv); wm_init();
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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53
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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54 while ((c = getopt(argc, argv, "a:e:f:F:h?o:s:v:")) != EOF) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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55 switch (c) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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56 case 'a':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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57 alpha = atof(optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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58 if (alpha <= 0.0) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
59 fprintf(stderr, "%s: alpha factor %f out of range\n", progname, alpha);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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60 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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61 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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62 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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63 case 'e':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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64 method = atoi(optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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65 if (method < 0) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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66 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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67 exit(1);
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 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
70 case 'f':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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71 filter = atoi(optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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72 if (filter <= 0) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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73 fprintf(stderr, "%s: filter number %d out of range\n", progname, filter);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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74 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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75 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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76 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
77 case 'F':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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78 strcpy(filter_name, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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79 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
80 case 'h':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
81 case '?':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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82 usage();
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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83 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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84 case 'o':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
85 if ((out = fopen(optarg, "wb")) == NULL) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
86 fprintf(stderr, "%s: unable to open output file %s\n", progname, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
87 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
88 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
89 strcpy(output_name, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
90 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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91 case 's':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
92 if ((sig = fopen(optarg, "r")) == NULL) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
93 fprintf(stderr, "%s: unable to open signature file %s\n", progname, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
94 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
95 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
96 strcpy(signature_name, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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97 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
98 case 'v':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
99 verbose = atoi(optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
100 if (verbose < 0) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
101 fprintf(stderr, "%s: verbosity level %d out of range\n", progname, verbose);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
102 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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103 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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104 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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105 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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106 }
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 argc -= optind;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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109 argv += optind;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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110
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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111 if (argc > 1) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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112 usage();
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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113 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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114 }
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 if (argc == 1 && *argv[0] != '-')
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
117 if ((in = fopen(argv[0], "rb")) == NULL) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
118 fprintf(stderr, "%s: unable to open input file %s\n", progname, argv[0]);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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119 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
120 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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121 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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122 strcpy(input_name, argv[0]);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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123
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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124 if (sig) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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125 char line[32];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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126 fgets(line, sizeof(line), sig);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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127 if (strspn(line, "CVSG") >= 4) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
128 fscanf(sig, "%d\n", &n);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
129 if (alpha == 0.0)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
130 fscanf(sig, "%lf\n", &alpha);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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131 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
132 fscanf(sig, "%*lf\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
133 if (method < 0)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
134 fscanf(sig, "%d\n", &method);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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135 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
136 fscanf(sig, "%*d\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
137 if (filter == 0)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
138 fscanf(sig, "%d\n", &filter);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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139 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
140 fscanf(sig, "%*d\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
141 if (!strcmp(filter_name, ""))
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
142 fscanf(sig, "%[^\n\r]\n", &filter_name);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
143 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
144 fscanf(sig, "%*[^\n\r]\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
145 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
146 else {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
147 fprintf(stderr, "%s: invalid signature file %s\n", progname, signature_name);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
148 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
149 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
150 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
151 else {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
152 fprintf(stderr, "%s: signature file not specified, use -s file option\n", progname);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
153 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
154 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
155
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
156 pgm_readpgminit(in, &cols, &rows, &maxval, &format);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
157
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
158 image = pgm_allocarray(cols, rows);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
159
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
160 for (row = 0; row < rows; row++)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
161 pgm_readpgmrow(in, image[row], cols, maxval, format);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
162
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
163 fclose(in);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
164
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
165 level = 0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
166 row = rows;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
167 col = cols;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
168 while (n < row * col / 4.0 && row >= 2 && col >= 2) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
169 row /= 2;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
170 col /= 2;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
171 level++;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
172 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
173
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
174 if (verbose >= 2) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
175 fprintf(stderr, "%s: embedding into coarse image (x %d/y %d) at level %d\n", progname, col, row, level);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
176 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
177
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
178 init_dwt(cols, rows, filter_name, filter, level, method);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
179 #ifdef POLLEN_STUFF
3
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents: 0
diff changeset
180 #include "pollen_stuff.c"
0
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
181 #endif
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
182 #ifdef PARAM_STUFF
3
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents: 0
diff changeset
183 #include "param_stuff.c"
0
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
184 #endif
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
185
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
186 dwts = fdwt(image);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
187
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
188 {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
189 Image_tree p = dwts;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
190 Image img;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
191 double med;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
192
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
193 while (!p->image)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
194 p = p->coarse;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
195
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
196 img = p->image;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
197
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
198 med = 0.0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
199 for (row = 0; row < img->height; row++)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
200 for (col = 0; col < img->width; col++)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
201 med += get_pixel(img, col, row);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
202
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
203 med /= (double) (img->height * img->width);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
204
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
205 row = 0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
206 col = 0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
207 while (n > 0) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
208 double pix;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
209 double g;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
210
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
211 fscanf(sig, "%lf\n", &g);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
212
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
213 pix = get_pixel(img, col, row);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
214 pix = med + (pix - med) * (1.0 + alpha * g);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
215 set_pixel(img, col, row, pix);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
216
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
217 if (++col == img->width) { col = 0; row++; }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
218 n--;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
219 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
220 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
221
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
222 fclose(sig);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
223
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
224 idwt(dwts, image);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
225
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
226 pgm_writepgminit(out, cols, rows, maxval, 0);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
227
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
228 for (row = 0; row < rows; row++)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
229 pgm_writepgmrow(out, image[row], cols, maxval, 0);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
230
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
231 fclose(out);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
232
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
233 pgm_freearray(image, rows);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
234
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
235 exit(0);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
236 }

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