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August 29, 2015 14:02
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A script used to pull location information from .png files. Absolutely no error handling, needs imagemagick installed.
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$images = Get-ChildItem -Name | Where-Object { $_ -match ".png$" } | |
if ($images) { | |
foreach ($image in $images) { | |
$gpstags = identify -format "%[EXIF:GPSL*]" $image | |
$latitude = 1 | |
$longitude = 1 | |
foreach ($tag in $gpstags) { | |
$tokens = $tag.split('=') | |
$tokens[0] = $tokens[0].trimStart("exif:") | |
if (!$tokens[0].endsWith("Ref")) { | |
$dms = $tokens[1].replace(' ', '').split(',') | |
$degree_parts = $dms[0].split('/') | |
$minute_parts = $dms[1].split('/') | |
$second_parts = $dms[2].split('/') | |
$decimal_degrees = $degree_parts[0] / $degree_parts[1] + ( $minute_parts[0] / $minute_parts[1] + ( $second_parts[0] / $second_parts[1] ) / 60 ) / 60 | |
if ($tokens[0] -eq "GPSLatitude") { | |
$latitude *= $decimal_degrees | |
} else { | |
$longitude *= $decimal_degrees | |
} | |
} else { | |
if ($tokens[0].startsWith("GPSLatitude") -and $tokens[1] -eq "S") { | |
$latitude = -$latitude | |
} elseif ($tokens[1] -eq "W") { | |
$longitude = -$longitude | |
} | |
} | |
} | |
echo "$latitude, $longitude" | |
} | |
} |
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