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Making the weight calculation statements more readable

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Ankit Agrawal
2013-08-02 19:02:16 +05:30
parent 212874fae3
commit 8ef8ba59d0
1 changed files with 2 additions and 4 deletions
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skimage/feature/censure.py
+2 -4
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@@ -109,14 +109,12 @@ def _star(a):
def _star_filter(m, n):
outer = 4 * m**2 + 4 * m + 1 + 4 * (m / 2)**2
inner = 4 * n**2 + 4 * n + 1 + 4 * (n / 2)**2
outer_weight = 1.0 / (outer - inner)
inner_weight = 1.0 / inner
c = m + m / 2 - n - n / 2
outer_star = _star(m)
inner_star = np.zeros((outer_star.shape))
inner_star[c: -c, c: -c] = _star(n)
outer_weight = 1.0 / (np.sum(outer_star - inner_star))
inner_weight = 1.0 / np.sum(inner_star)
bfilter = (outer_weight * outer_star -
(outer_weight + inner_weight) * inner_star)
return bfilter