Sha256: f23ae2a4fcd21994d0996c5b8f0a62f6dd018862b6e19103862f99c849602328
Contents?: true
Size: 565 Bytes
Versions: 20
Compression:
Stored size: 565 Bytes
Contents
#! /usr/local/bin/ruby -w
require 'RMagick'
img = Magick::Image.read('images/Flower_Hat.jpg').first
# Convert to grayscale
sketch = img.quantize(256, Magick::GRAYColorspace)
# Apply histogram equalization
sketch = sketch.equalize
# Sketch, then dissolve 25% of the original back in
begin
sketch = sketch.sketch(0, 10, 135)
img = img.dissolve(sketch, 0.75, 0.25)
rescue NotImplementedError
not_impl = Magick::Image.read('images/notimplemented.gif').first
not_impl.resize!(img.columns, img.rows)
img = not_impl
end
img.write('sketch.jpg')
Version data entries
20 entries across 20 versions & 1 rubygems