9 my $file = shift or die;
11 open my $in_fh, '<', $file or die;
16 die unless $type eq 'SIMcache';
24 printf "Comment: %s\n", $1;
26 elsif (/^Dimensions=\[(\d+) x (\d+)\]$/)
28 printf "Original image dimensions: %dx%d\n", $1, $2;
30 elsif (/^Date=(\[-1\])/)
32 printf "Exif Date Original: %s\n", $1;
36 my $unix_time = substr($1, 1, 10);
38 my ($S, $M, $H, $d, $m, $Y) = localtime($unix_time);
41 my $date_time = sprintf("%04d-%02d-%02d %02d:%02d:%02d", $Y, $m, $d, $H, $M, $S);
43 printf "Exif Date Original: %s %s\n", $1, $date_time;
45 elsif (/^Checksum=(.*)/)
47 printf "Checksum (never seen): %s\n", $1;
49 elsif (/^MD5sum=\[(.*)\]$/)
51 printf "MD5 sum: %s\n", $1;
53 elsif ($raw =~ /^SimilarityGrid\[(\d+) x (\d+)\]=(.*)$/s)
55 printf "Similarity image %dx%d\n", $1, $2;
56 if ($1 != 32 or $2 != 32)
58 print "Warning, similarity data are not size 32x32!\n";
61 my $simn = $1 * $2 * 3;
62 my ($width, $height) = ($1, $2);
65 $simdata = substr($simdata, 0, -1) if length($simdata) == $simn + 1; # In case all fits to one line
67 if (length($simdata) < $simn)
69 read $in_fh, $simdata, $simn - length($simdata), length($simdata) or die;
71 read $in_fh, $dummy, 1 or die;
74 printf "Warning, similarity data is not %d bytes", $simn unless length($simdata) == $simn;
76 if (length($simdata) == $simn)
78 my $gd = GD::Image->new($width, $height, 1);
80 for (my $x = 0; $x < $width; $x++)
82 for (my $y = 0; $y < $height; $y++)
84 my $colors = substr($simdata, ($x + $y * $width) * 3, 3);
85 my @rgb = unpack("CCC", $colors);
86 my $index = $gd->colorAllocate(@rgb);
87 $gd->setPixel($x, $y, $index);
89 } ## end for (my $x = 0; $x < $width; $...
92 open my $display_fh, '|-', qw(display -resize), sprintf("%dx%d", $width*10, $height*10), '-' or die;
94 print {$display_fh} $png;
96 } ## end if (length($simdata) == $simn)
97 } ## end elsif (/^SimilarityGrid\[(\d+)...
101 $field = $1 if /^(.*)=/;
103 printf "Unknown Field '$field'\n";
104 } ## end elsif (/^SimilarityGrid\[(\d+)...
105 } ## end while (<$in_fh>)