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renaming machineEps to eps to match convention

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This commit is contained in:
Matthew Trentacoste
2013-10-22 23:52:12 -07:00
parent 36e56e2639
commit 9d9d16d2a4
1 changed files with 6 additions and 6 deletions
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skimage/color/colorconv.py
+6 -6
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@@ -898,7 +898,7 @@ def xyz2luv(xyz):
# extract channels
x, y, z = arr[..., 0], arr[..., 1], arr[..., 2]
machineEps = np.finfo(np.float).eps
eps = np.finfo(np.float).eps
# compute y_r and L
L = y / lab_ref_white[1]
@@ -911,9 +911,9 @@ def xyz2luv(xyz):
# u' and v' helper functions
def fu( X, Y, Z ):
return ( 4.*X ) / ( X + 15.*Y + 3.*Z + machineEps )
return ( 4.*X ) / ( X + 15.*Y + 3.*Z + eps )
def fv( X, Y, Z ):
return ( 9.*Y ) / ( X + 15.*Y + 3.*Z + machineEps )
return ( 9.*Y ) / ( X + 15.*Y + 3.*Z + eps )
# compute u and v using helper functions
u = 13.*L * ( fu(x,y,z) - u0 )
@@ -956,7 +956,7 @@ def luv2xyz(luv):
L, u, v = arr[:, :, 0], arr[:, :, 1], arr[:, :, 2]
machineEps = np.finfo(np.float).eps
eps = np.finfo(np.float).eps
# compute y
y = L.copy()
@@ -971,8 +971,8 @@ def luv2xyz(luv):
v0 = 9*lab_ref_white[1] / np.dot( uv_weights, lab_ref_white )
# compute intermediate values
a = u0 + u / ( 13.*L + machineEps )
b = v0 + v / ( 13.*L + machineEps )
a = u0 + u / ( 13.*L + eps )
b = v0 + v / ( 13.*L + eps )
c = 3*y * (5*b-3)
# compute x and z