# File lib/color/yiq.rb, line 42
  def ==(other)
    other = other.to_yiq
    other.kind_of?(Color::YIQ) and
    ((@y - other.y).abs <= Color::COLOR_TOLERANCE) and
    ((@i - other.i).abs <= Color::COLOR_TOLERANCE) and
    ((@q - other.q).abs <= Color::COLOR_TOLERANCE) 
  end