module Origami::Graphics::Color

def self.cmyk_to_rgb(c, m, y, k)
    r = 1 - (( c * ( 1 - k ) + k ))
    g = 1 - (( m * ( 1 - k ) + k ))
    b = 1 - (( y * ( 1 - k ) + k ))
    [ r, g, b ]
end

def self.gray_to_rgb(g)
    [ g, g, g ]
end