# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1443911567 -7200
# Node ID 594282e858487be4b686830ca7e2ece1c17f5a72
# Parent  baa08ae98f2e88bd6a5d30e5980b768a0b0b5bb3
Introduced random colour exchange when too many colours are needed.

diff -r baa08ae98f2e -r 594282e85848 optimiser.py
--- a/optimiser.py	Sat Oct 03 19:08:11 2015 +0200
+++ b/optimiser.py	Sun Oct 04 00:32:47 2015 +0200
@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 
-from random import random
+from random import random, randrange
 from os.path import splitext
 import EXIF
 import PIL.Image
@@ -188,11 +188,11 @@
         most = [value for n, value in c[:4]]
         least = [value for n, value in c[4:]]
 
-        #if least:
-        #    if (0, 0, 0) in least[:2]:
-        #        replace((0, 0, 0), most)
-        #    if (255, 255, 255) in least[:2]:
-        #        replace((255, 255, 255), most)
+        if least:
+            i = randrange(4, len(c))
+            c = c[:3] + c[i:i+1] + c[4:i] + c[i+1:]
+            most = [value for n, value in c[:4]]
+            least = [value for n, value in c[4:]]
 
         for x in range(0, width):
             rgb = im.getpixel((x, y))