Sha256: 04895cf9db09b4353129ed709fbf4d4e3398c40651e5341706b1ad5d6c5140ab
Contents?: true
Size: 721 Bytes
Versions: 6
Compression:
Stored size: 721 Bytes
Contents
#!/usr/bin/env ruby -w
require 'rmagick'
# Demonstrate the Image#median_filter method
img = Magick::Image.read('images/Flower_Hat.jpg').first
img = img.add_noise(Magick::UniformNoise)
eimg = img.median_filter(0.05)
# Zoom in so we can see the change
img.resize!(3)
eimg.resize!(3)
# Make a before-and-after composite
eimg.crop!(eimg.columns / 2, 0, eimg.columns / 2, eimg.rows)
img = img.composite(eimg, Magick::EastGravity, Magick::OverCompositeOp)
# Draw a black line between the before and after parts.
line = Magick::Draw.new
line.line(img.columns / 2, 0, img.columns / 2, img.rows)
line.draw(img)
# Crop everything but the face.
img.crop!(Magick::CenterGravity, 250, 200)
img.write('median_filter.jpg')
exit
Version data entries
6 entries across 6 versions & 1 rubygems