polaroid.rb.html

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  <title>RMagick example: polaroid.rb</title>
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<h1>polaroid.rb</h1>
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<pre class="language-ruby">
# frozen_string_literal: true

require 'rmagick'
require 'date'

# Demonstrate the Image#polaroid method

img = Magick::Image.read('images/Flower_Hat.jpg').first
img[:Caption] = "\nLosha\n" + Date.today.to_s

begin
  picture = img.polaroid do |options|
    options.font_weight = Magick::NormalWeight
    options.font_style = Magick::NormalStyle
    options.gravity = Magick::CenterGravity
    options.border_color = '#f0f0f8'
  end

  # Composite it on a white background so the result is opaque.
  background = Magick::Image.new(picture.columns, picture.rows)
  result = background.composite(picture, Magick::CenterGravity, Magick::OverCompositeOp)
rescue NotImplementedError
  result = Magick::Image.read('images/notimplemented.gif').first
  result.resize!(img.columns, img.rows)
end

result.write('polaroid.jpg')
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