Sha256: 5348e1c1b27e0ceca5de58b9fb02231b9b2ea57dbc16f5b720bdcb9e255f9b66
Contents?: true
Size: 912 Bytes
Versions: 28
Compression:
Stored size: 912 Bytes
Contents
#! /usr/local/bin/ruby -w
require 'RMagick'
include Magick
img = Image.new(200,200)
img.compression = LZWCompression
bg = Image.read('plasma:fractal') {
self.size = '200x200'
}
gc = Draw.new
gc.stroke_width(2)
gc.stroke('black')
gc.fill('white')
gc.roundrectangle(0, 0, 199, 199, 8, 8)
gc.fill('black')
gc.circle(100, 45, 100, 25)
gc.circle( 45, 100, 25, 100)
gc.circle(100, 155, 100, 175)
gc.circle(155, 100, 175, 100)
gc.draw(img)
img.write('matte_replace_before.gif')
# Set the border color. Set the fuzz attribute so that
# the matte fill will fill the aliased pixels around
# the edges of the black circles.
img.border_color = 'black'
img.fuzz = 10
img = img.matte_replace(100, 45)
# Composite the image over a nice bright background
# so that the transparent pixels will be obvious.
img = bg[0].composite(img, CenterGravity, OverCompositeOp)
img.write('matte_replace_after.gif')
exit
Version data entries
28 entries across 28 versions & 1 rubygems