1.1 --- a/optimiser.py	Fri Oct 09 22:16:49 2015 +0200
     1.2 +++ b/optimiser.py	Sat Oct 10 14:53:29 2015 +0200
     1.3 @@ -47,13 +47,16 @@
     1.4      return math.sqrt(pow(r1 - r2, 2) + pow(g1 - g2, 2) + pow(b1 - b2, 2))
     1.5  
     1.6  def restore(srgb):
     1.7 -    return tuple(map(lambda x: int(x * 255.0), srgb))
     1.8 +    r, g, b = srgb
     1.9 +    return int(r * 255.0), int(g * 255.0), int(b * 255.0)
    1.10  
    1.11  def scale(rgb):
    1.12 -    return tuple(map(lambda x: x / 255.0, rgb))
    1.13 +    r, g, b = rgb
    1.14 +    return r / 255.0, g / 255.0, b / 255.0
    1.15  
    1.16  def invert(srgb):
    1.17 -    return tuple(map(lambda x: 1.0 - x, srgb))
    1.18 +    r, g, b = srgb
    1.19 +    return 1.0 - r, 1.0 - g, 1.0 - b
    1.20  
    1.21  # Colour distribution functions.
    1.22