Prototyping turning an image into a masked cloud in RMagick

gistfile2.txt

RMagickPrototype.rb

require "RMagick"

class CloudMasker  
  def initialize(destination)
    @src = Magick::Image.new(190, 100)
    @dst = Magick::Image.read(destination)[0]
    @mask = Magick::Image.read(MASK_PATH)[0] 
  end
  
  def make_cloud
    @dst.resize_to_fill!(190, 100)
    @dst = @dst.add_compose_mask(@mask)
    @result = @dst.composite(@src, Magick::CenterGravity, Magick::OverCompositeOp)
    @result = @result.add_compose_mask(@mask)
    @result = @result.blur_image(0, 0.25)
    @result.transparent("white").write(RESULT_PATH)
  end
  
  def self.make_image(destination)
    File.delete(RESULT_PATH) if File.exist?(RESULT_PATH)
    cm = CloudMasker.new(destination)
    cm.make_cloud
  end
end