annotate Meerwald/gen_koch_sig.c @ 5:8191b855cd5e

Added tag v0.5 for changeset 9cf6ec970448
author Peter Meerwald <pmeerw@cosy.sbg.ac.at>
date Tue, 14 Aug 2007 21:13:29 +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 "signature.h"
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
3
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
4 char *progname;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
6 void usage(void) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
7 fprintf(stderr, "usage: %s [-l n] [-n n] [-o file] [-q n] [-s file] [-S n] file\n\n", progname);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
8 fprintf(stderr, "\t-h\t\tprint usage\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
9 fprintf(stderr, "\t-l n\t\tsignature strength factor (default 5.0)\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
10 fprintf(stderr, "\t-n n\t\twatermark bit length\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
11 fprintf(stderr, "\t-o file\t\toutput file\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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12 fprintf(stderr, "\t-q n\t\tquantization (JPEG quality) factor (default 90)\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
13 fprintf(stderr, "\t-s file\t\tuse signature file's embedding information\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
14 fprintf(stderr, "\t-S n\t\tseed\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
15 exit(0);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
16 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
18 int main(int argc, char *argv[]) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
19 FILE *in = stdin;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
20 FILE *out = stdout;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
21 FILE *sig = NULL;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
22
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
23 char output_name[MAXPATHLEN] = "(stdout)";
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
24 char input_name[MAXPATHLEN] = "(stdin)";
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
25 char signature_name[MAXPATHLEN];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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26
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
27 int c;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
28 int i;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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29 int n = 0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
30 int nb;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
31 int s = 0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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32 int q = 90;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
33 double l = 5.0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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34
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
35 progname = argv[0]; wm_init();
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
36
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
37 while ((c = getopt(argc, argv, "h?l:n:o:q:s:S:")) != EOF) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
38 switch (c) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
39 case 'h':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
40 case '?':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
41 usage();
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
42 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
43 case 'l':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
44 l = atof(optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
45 if (l <= 0.0) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
46 fprintf(stderr, "%s: signature strength factor %f out of range\n", progname, l);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
47 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
48 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
49 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
50 case 'n':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
51 n = atoi(optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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52 if (n < 1 || n > 1000) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
53 fprintf(stderr, "%s: watermark length %d out of range\n", progname, n);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
54 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
55 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
56 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
57 case 'o':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
58 if ((out = fopen(optarg, "wb")) == NULL) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
59 fprintf(stderr, "%s: unable to open output file %s\n", progname, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
60 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
61 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
62 strcpy(output_name, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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63 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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64 case 'q':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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65 q = atoi(optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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66 if (q <= 0 || q > 100) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
67 fprintf(stderr, "%s: quantization factor %f out of range\n", progname, q);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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68 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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69 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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70 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
71 case 's':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
72 if ((sig = fopen(optarg, "r")) == NULL) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
73 fprintf(stderr, "%s: unable to open signature file %s\n", progname, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
74 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
75 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
76 strcpy(signature_name, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
77 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
78 case 'S':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
79 s = atoi(optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
80 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
81 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
82 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
83
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
84 argc -= optind;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
85 argv += optind;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
86
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
87 if (argc > 1) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
88 usage();
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
89 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
90 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
91
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
92 if (argc == 1 && *argv[0] != '-')
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
93 if ((in = fopen(argv[0], "rb")) == NULL) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
94 fprintf(stderr, "%s: unable to open input file %s\n", progname, argv[0]);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
95 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
96 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
97 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
98 strcpy(input_name, argv[0]);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
99
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
100 if (s)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
101 srandom(s);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
102 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
103 srandom(time(NULL) * getpid());
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
104
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
105 if (sig) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
106 char line[128];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
107 fgets(line, sizeof(line), sig);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
108 if (strspn(line, "KCSG") >= 4) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
109 if (n == 0)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
110 fscanf(sig, "%d\n", &n);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
111 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
112 fscanf(sig, "%*d\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
113 if (l == 0.0)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
114 fscanf(sig, "%lf\n", &l);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
115 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
116 fscanf(sig, "%*lf\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
117 if (q == 0)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
118 fscanf(sig, "%d\n", &q);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
119 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
120 fscanf(sig, "%*d\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
121 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
122 else {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
123 fprintf(stderr, "%s: invalid signature file %s\n", progname, signature_name);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
124 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
125 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
126 fclose(sig);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
127 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
128
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
129 if (n > 0) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
130 nb = fread(signature, sizeof(char), i = NBITSTOBYTES(n), in);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
131 if (nb < i) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
132 fprintf(stderr, "%s: failed to read all %d signature bits from %s\n", progname, n, input_name);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
133 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
134 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
135 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
136 else {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
137 if (fscanf(in, "%128[^\n\r]", signature) == EOF) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
138 fprintf(stderr, "%s: failed to read signature bits from %s\n", progname, input_name);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
139 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
140 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
141 nb = strlen(signature);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
142 n = NBYTESTOBITS(nb);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
143 fprintf(stderr, "%s: got %d signature bits\n", progname, n);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
144 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
145
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
146 fprintf(out, "KCSG\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
147 fprintf(out, "%d\n", n);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
148 fprintf(out, "%f\n", l);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
149 fprintf(out, "%d\n", q);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
150 fprintf(out, "%d\n", random());
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
151 fwrite(signature, sizeof(char), nb, out);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
152 fprintf(out, "\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
153
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
154 fclose(out);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
155
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
156 exit(0);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
157 }

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