This script is useful for rotating & scaling images to a specific native resolution. I wrote it to prep pictures for use with a digital photo frame. I found that it is very hard to automate good cropping, but having everything at the same scale saves a lot of the work.

framinate.rb

#!/usr/bin/env ruby

require 'fastimage'

FWIDTH  = 1024
FHEIGHT = 600

workdir = Dir.pwd

Dir.foreach(workdir) { |item|
  curritem  = File.join(workdir,item)
  pre       = FastImage.size(curritem)
  puts "- #{item} (#{pre[0]}x#{pre[1]})"
  system("mogrify -auto-orient -resize \"#{FWIDTH}x#{FHEIGHT}^\" #{curritem}")
}

exit