# File lib/dragonfly/processing/r_magick_processor.rb, line 85
      def rotate(temp_object, amount, opts={})
        args = [amount.to_f]
        args << opts[:qualifier] if opts[:qualifier]
        rmagick_image(temp_object) do |image|
          image.background_color = opts[:background_colour] if opts[:background_colour]
          image.background_color = opts[:background_color] if opts[:background_color]
          image.rotate(*args) || temp_object
        end
      end