Library for handling exif image tags.

Basic usage:

> gem install RubyInline
> gem install ruby-exiv2
> irb -r rubygems

require 'exiv2'
@img = Exiv2::Image.new("a.jpg")
puts @img["Exif.Photo.PixelXDimension"]
@img["Exif.Photo.PixelXDimension"] = 2048
@img.save

Version 1.3 introduces dynamic accessors:

require 'exiv2'
@img = Exiv2::Image.new("a.jpg")
puts @img.Exif.Photo.PixelXDimension
@img.Exif.Photo.PixelXDimension = 2048
@img.save