convert images to fixed width images

fix_size_image.rb

#!/usr/bin/env ruby
TARGET_WIDTH = 1000.0

Dir["*.jpg"].each do |f|
  fileinfo = `convert #{f} -print "%wx%h" /dev/null`
  width, height = fileinfo.split("x").collect(&:to_i)
  
  height *= (TARGET_WIDTH / width)
  width = TARGET_WIDTH
  print "Processing #{f}..."
  system("convert -resize #{width}x#{height} #{f} re_#{f}")
  puts "done."
end