/usr/share/perl5/Image/ExifTool/PrintIM.pm is in libimage-exiftool-perl 9.74-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# File: PrintIM.pm
#
# Description: Read PrintIM meta information
#
# Revisions: 04/07/2004 - P. Harvey Created
#------------------------------------------------------------------------------
package Image::ExifTool::PrintIM;
use strict;
use vars qw($VERSION);
use Image::ExifTool qw(:DataAccess);
$VERSION = '1.07';
sub ProcessPrintIM($$$);
# PrintIM table (proprietary specification by Epson)
%Image::ExifTool::PrintIM::Main = (
PROCESS_PROC => \&ProcessPrintIM,
GROUPS => { 0 => 'PrintIM', 1 => 'PrintIM', 2 => 'Printing' },
PRINT_CONV => 'sprintf("0x%.8x", $val)',
TAG_PREFIX => 'PrintIM',
PrintIMVersion => { # values: 0100, 0250, 0260, 0300
Description => 'PrintIM Version',
PrintConv => undef,
},
# the following names are from http://www.kanzaki.com/ns/exif
# but the decoding is unknown:
# 9 => { Name => 'PIMContrast', Unknown => 1 }, #1
# 10 => { Name => 'PIMBrightness', Unknown => 1 }, #1
# 11 => { Name => 'PIMColorbalance', Unknown => 1 }, #1
# 12 => { Name => 'PIMSaturation', Unknown => 1 }, #1
# 13 => { Name => 'PIMSharpness', Unknown => 1 }, #1
);
#------------------------------------------------------------------------------
# Process PrintIM IFD
# Inputs: 0) ExifTool object ref, 1) dirInfo ref, 2) tag table ref
# Returns: 1 on success
sub ProcessPrintIM($$$)
{
my ($et, $dirInfo, $tagTablePtr) = @_;
my $dataPt = $$dirInfo{DataPt};
my $offset = $$dirInfo{DirStart};
my $size = $$dirInfo{DirLen};
my $verbose = $et->Options('Verbose');
unless ($size) {
$et->Warn('Empty PrintIM data', 1);
return 0;
}
unless ($size > 15) {
$et->Warn('Bad PrintIM data');
return 0;
}
unless (substr($$dataPt, $offset, 7) eq 'PrintIM') {
$et->Warn('Invalid PrintIM header');
return 0;
}
# check size of PrintIM block
my $num = Get16u($dataPt, $offset + 14);
if ($size < 16 + $num * 6) {
# size is too big, maybe byte ordering is wrong
ToggleByteOrder();
$num = Get16u($dataPt, $offset + 14);
if ($size < 16 + $num * 6) {
$et->Warn('Bad PrintIM size');
return 0;
}
}
$verbose and $et->VerboseDir('PrintIM', $num);
$et->HandleTag($tagTablePtr, 'PrintIMVersion', substr($$dataPt, $offset + 8, 4),
DataPt => $dataPt,
Start => $offset + 8,
Size => 4,
);
my $n;
for ($n=0; $n<$num; ++$n) {
my $pos = $offset + 16 + $n * 6;
my $tag = Get16u($dataPt, $pos);
my $val = Get32u($dataPt, $pos + 2);
$et->HandleTag($tagTablePtr, $tag, $val,
Index => $n,
DataPt => $dataPt,
Start => $pos + 2,
Size => 4,
);
}
return 1;
}
1; # end
__END__
=head1 NAME
Image::ExifTool::PrintIM - Read PrintIM meta information
=head1 SYNOPSIS
This module is loaded automatically by Image::ExifTool when required.
=head1 DESCRIPTION
This module contains definitions required by Image::ExifTool to interpret
Print Image Matching meta information.
=head1 AUTHOR
Copyright 2003-2014, Phil Harvey (phil at owl.phy.queensu.ca)
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
=head1 SEE ALSO
L<Image::ExifTool::TagNames/PrintIM Tags>,
L<Image::ExifTool(3pm)|Image::ExifTool>
=cut
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