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Matt Terry
2013-07-23 09:21:48 -07:00
parent 01d8cb2f4d
commit 1dc46c827f
1 changed files with 14 additions and 0 deletions
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skimage/color/delta_e.py
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@@ -56,6 +56,10 @@ def deltaE_cie76(lab1, lab2):
-------
dE : array_like
distance between colors `lab1` and `lab2`
References
----------
http://en.wikipedia.org/wiki/Color_difference
"""
l1, a1, b1 = _unpack_last(lab1)
l2, a2, b2 = _unpack_last(lab2)
@@ -105,6 +109,11 @@ def deltaE_ciede94(lab1, lab2, kH=1, kC=1, kL=1, k1=0.045, k2=0.015):
kL 1.000 2.000
k1 0.045 0.048
k2 0.015 0.014
References
----------
http://en.wikipedia.org/wiki/Color_difference
http://www.brucelindbloom.com/index.html?Eqn_DeltaE_CIE94.html
"""
l1, a1, b1 = _unpack_last(lab1)
l2, a2, b2 = _unpack_last(lab2)
@@ -261,6 +270,11 @@ def deltaE_cmc(lab1, lab2, kL=1, kC=1):
deltaE_cmc the defines the scales for the lightness, hue, and chroma
in terms of the first color. Consequently
deltaE_cmc(lab1, lab2) != deltaE_cmc(lab2, lab1)
References
----------
http://en.wikipedia.org/wiki/Color_difference
http://www.brucelindbloom.com/index.html?Eqn_DeltaE_CIE94.html
"""
l1, a1, b1 = _unpack_last(lab1)
l2, a2, b2 = _unpack_last(lab2)