#------------------------------------------------------------------------------
# File: convert_regions.config
#
# Description: User-defined Composite tag definitions to allow conversion of
# face regions between Microsoft Windows Live Photo Gallery (WLPG)
# and Metadata Working Group (MWG) formats
#
# Usage: 1) Convert from MP WLPG regions to MWG regions:
#
# exiftool -config convert_regions.config "-regioninfo<myregion" FILE
#
# 2) Convert from MWG to WLPG regions:
#
# exiftool -config convert_regions.config "-regioninfomp<myregionmp" FILE
#
# Requires: ExifTool version 8.82 or later
#
# Revisions: 2012/12/27 - P. Harvey Created
# 2013/02/20 - PH Don't add ignored MP faces
# 2017/02/13 - PH Handle MP regions without Rectangle or Name entries
#
# References: http://www.metadataworkinggroup.org/specs/
#------------------------------------------------------------------------------
%Image::ExifTool::UserDefined = (
'Image::ExifTool::Composite' => {
# create an MWG RegionInfo structure from a Microsoft RegionInfoMP structure
MyRegion => {
Require => {
0 => 'RegionInfoMP',
1 => 'ImageWidth',
2 => 'ImageHeight',
},
ValueConv => q{
my ($rgn, @newRgns);
foreach $rgn (@{$val[0]{Regions}}) {
my $name = $$rgn{PersonDisplayName};
next unless $$rgn{Rectangle} or defined $name;
my %newRgn = ( Type => 'Face' );
if (defined $name) {
# don't add ignored faces
next if $name eq 'ffffffffffffffff';
$newRgn{Name} = $name;
}
if ($$rgn{Rectangle}) {
my @rect = split /\s*,\s*/, $$rgn{Rectangle};
$newRgn{Area} = {
X => $rect[0] + $rect[2]/2,
Y => $rect[1] + $rect[3]/2,
W => $rect[2],
H => $rect[3],
Unit => 'normalized',
} if @rect == 4;
}
push @newRgns, \%newRgn;
}
return {
AppliedToDimensions => { W => $val[1], H => $val[2], Unit => 'pixel' },
RegionList => \@newRgns,
};
},
},
# create a Microsoft RegionInfoMP structure from an MWG RegionInfo structure
MyRegionMP => {
Require => 'RegionInfo',
ValueConv => q{
my ($rgn, @newRgns);
foreach $rgn (@{$val[0]{RegionList}}) {
next unless $$rgn{Area} or defined $$rgn{Name};
my %newRgn;
if ($$rgn{Area}) {
my @rect = @{$$rgn{Area}}{'X','Y','W','H'};
$rect[0] -= $rect[2]/2;
$rect[1] -= $rect[3]/2;
$newRgn{Rectangle} = join(', ', @rect);
}
$newRgn{PersonDisplayName} = $$rgn{Name} if defined $$rgn{Name};
push @newRgns, \%newRgn;
}
return { Regions => \@newRgns };
},
},
},
);
1; #end