#! /usr/local/bin/ruby -w require 'RMagick' # Demonstrate the Image#oil_paint method img = Magick::Image.read('images/Grandma.jpg').first img = img.scale(350.0/img.rows) puts 'Adding oil paint effect. This will take a few seconds...' img = img.oil_paint #img.display img.write('oil_paint.jpg') exit