references

This commit is contained in:
Matt Terry
2013-07-23 09:33:55 -07:00
parent 4b3c11d23e
commit f67a088cce
+1
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@@ -18,6 +18,7 @@ The delta-E notation comes from the German word for "Sensation" (Empfindung).
Reference
---------
http://en.wikipedia.org/wiki/Color_difference
"""
from __future__ import division