1. install mini_magick sudo gem install mini_magick 2. example in merb: require "mini_magick" def image_dimension(image_path) im = MiniMagick::Image.from_file(image_path) return "#{im[:width]}:#{im[:height]}" end

http://rubyonrails.blogdetik.com/2008/02/02/using-mini_magick-to-resize-animated-gif-file/

How to get the dimension from a image file in ruby?

1. install mini_magick sudo gem install mini_magick 2. example in merb: require "mini_magick" def image_dimension(image_path) im = MiniMagick::Image.from_file(image_path) return "#{im[:width]}:#{im[:height]}" end 07.12.13

http://rubyonrails.blogdetik.com/2008/02/02/using-mini_magick-to-resize-animated-gif-file/

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