xmp - Extensible Metadata Platform (XMP) parser¶ ↑
XMP provides object oriented interface to XMP data (en.wikipedia.org/wiki/Extensible_Metadata_Platform). XMP data can be found in PDF, JPEG, GIF, PNG, and many other formats.
Supported formats¶ ↑
Currently only JPEG is supported through exifr gem.
JPEG example¶ ↑
# gem install xmp exifr require 'xmp' require 'exifr' require 'open-uri' img = EXIFR::JPEG.new('spec/fixtures/multiple-app1.jpg') xmp = XMP.parse(img) xmp.dc.subject #=> ["something interesting"] # explore XMP data xmp.namespaces.each do |namespace_name| namespace = xmp.send(namespace_name) namespace.attributes.each do |attr| puts "#{namespace_name}.#{attr}: " + namespace.send(attr).inspect end end
Installation¶ ↑
gem install xmp # for JPEG support gem install exifr -v ">=1.0.4"
Requirements¶ ↑
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Ruby 1.8.7, 1.9.2
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Nokogiri 1.4
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EXIFR >= 1.0.4
Development¶ ↑
Fork it at github.com/amberbit/xmp
# install development dependencies bundle install # run specs rake spec
License¶ ↑
Ruby’s license.
Copyright © 2011 Wojciech Piekutowski, AmberBit (amberbit.com)