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add_noise.rb.html
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<!DOCTYPE public PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<title>RMagick example: add_noise.rb</title>
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<h1>add_noise.rb</h1>
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<pre class="language-ruby">
# frozen_string_literal: true
require 'rmagick'
# Demonstrate the Image#add_noise method
NOISE_TYPES = [
Magick::UniformNoise, Magick::GaussianNoise,
Magick::MultiplicativeGaussianNoise,
Magick::ImpulseNoise, Magick::LaplacianNoise,
Magick::PoissonNoise
]
img = Magick::Image.read('images/Flower_Hat.jpg').first
NOISE_TYPES.each do |noise|
copy = img.add_noise(noise)
copy.write "add_noise_#{noise}.jpg"
end
exit
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