1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
#include "puzzle_common.h"
#include "puzzle.h"
typedef struct Opts_ {
const char *file1;
const char *file2;
int fix_for_texts;
int exit;
double similarity_threshold;
} Opts;
void usage(void)
{
puts("\nUsage: puzzle-diff [-b <contrast barrier for cropping] [-c]\n"
" [-C <max cropping ratio>] [-e] [-E similarity threshold] [-h]\n"
" [-H <max height>] [-l <lambdas>] [-n <noise cutoff>]\n"
" [-p <p ratio>] [-t] [-W <max width>] <file 1> <file 2>\n\n"
"Visually compares two images and returns their distance.\n\n"
"-b <contrast barrier for cropping>\n"
"-c : disable autocrop\n"
"-C <max cropping ratio>\n"
"-e : exit with 10 (images are similar) or 20 (images are not)\n"
"-E <similarity threshold> : for -e\n"
"-h : show help\n"
"-H <width> : set max height\n"
"-l <lambdas> : change lambdas\n"
"-n <noise cutoff> : change noise cutoff\n"
"-p <ratio> : set p ratio\n"
"-t disable fix for texts\n"
"-W <width> : set max width\n"
"\n");
exit(EXIT_SUCCESS);
}
int parse_opts(Opts * const opts, PuzzleContext * context,
int argc, char * const *argv) {
int opt;
extern char *optarg;
extern int optind;
opts->fix_for_texts = 1;
opts->exit = 0;
opts->similarity_threshold = PUZZLE_CVEC_SIMILARITY_THRESHOLD;
while ((opt = getopt(argc, argv, "b:cC:eE:hH:l:n:p:tW:")) != -1) {
switch (opt) {
case 'b':
puzzle_set_contrast_barrier_for_cropping(context, atof(optarg));
break;
case 'c':
puzzle_set_autocrop(context, 0);
break;
case 'C':
puzzle_set_max_cropping_ratio(context, atof(optarg));
break;
case 'e':
opts->exit = 1;
break;
case 'E':
opts->similarity_threshold = atof(optarg);
break;
case 'h':
usage();
/* NOTREACHED */
case 'H':
puzzle_set_max_height(context, strtoul(optarg, NULL, 10));
break;
case 'l':
puzzle_set_lambdas(context, strtoul(optarg, NULL, 10));
break;
case 'n':
puzzle_set_noise_cutoff(context, atof(optarg));
break;
case 'p':
puzzle_set_p_ratio(context, atof(optarg));
break;
case 't':
opts->fix_for_texts = 0;
break;
case 'W':
puzzle_set_max_width(context, strtoul(optarg, NULL, 10));
break;
default:
usage();
/* NOTREACHED */
}
}
argc -= optind;
argv += optind;
if (argc != 2) {
usage();
}
opts->file1 = *argv++;
opts->file2 = *argv;
return 0;
}
int main(int argc, char *argv[])
{
Opts opts;
PuzzleContext context;
PuzzleCvec cvec1, cvec2;
double d;
puzzle_init_context(&context);
parse_opts(&opts, &context, argc, argv);
puzzle_init_cvec(&context, &cvec1);
puzzle_init_cvec(&context, &cvec2);
if (puzzle_fill_cvec_from_file(&context, &cvec1, opts.file1) != 0) {
fprintf(stderr, "Unable to read [%s]\n", opts.file1);
return 1;
}
if (puzzle_fill_cvec_from_file(&context, &cvec2, opts.file2) != 0) {
fprintf(stderr, "Unable to read [%s]\n", opts.file2);
return 1;
}
d = puzzle_vector_normalized_distance(&context, &cvec1, &cvec2,
opts.fix_for_texts);
puzzle_free_cvec(&context, &cvec1);
puzzle_free_cvec(&context, &cvec2);
puzzle_free_context(&context);
if (opts.exit == 0) {
printf("%g\n", d);
return 0;
}
if (d > opts.similarity_threshold) {
return 20;
}
return 10;
}
|
