Sha256: f778a0e31a4706f02cc4b59c75e6e3da7ff2783a4ed91fc6711b9666a74c6bd0
Contents?: true
Size: 924 Bytes
Versions: 10
Compression:
Stored size: 924 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' }
bg[0].matte = false
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
10 entries across 10 versions & 1 rubygems