# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1443964651 -7200
# Node ID a53123d8da0a198c8bac914f17f92a094249d485
# Parent  594282e858487be4b686830ca7e2ece1c17f5a72
Use the square of each scaled colour value to diminish the image intensity.

diff -r 594282e85848 -r a53123d8da0a optimiser.py
--- a/optimiser.py	Sun Oct 04 00:32:47 2015 +0200
+++ b/optimiser.py	Sun Oct 04 15:17:31 2015 +0200
@@ -29,11 +29,14 @@
 def scale(rgb):
     return tuple(map(lambda x: x / 255.0, rgb))
 
+def square(srgb):
+    return tuple(map(lambda x: pow(x, 2), srgb))
+
 def invert(srgb):
     return tuple(map(lambda x: 1.0 - x, srgb))
 
 def combination(rgb):
-    rgb = scale(rgb)
+    rgb = square(scale(rgb))
     rgbi = invert(rgb)
     pairs = zip(rgbi, rgb)
     d = []