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iradon_sart: Remove needless memoryview/ndarray conversion.

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image_update is not manipulated in sart_projection_update and the
conversion to memoryview will happen when it is passed to the
subroutines anyway.
This commit is contained in:
Jostein Bø Fløystad
2013-06-15 17:10:03 +02:00
parent 5baaf78564
commit 89f227c5ff
1 changed files with 2 additions and 2 deletions
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skimage/transform/_radon_transform.pyx
+2 -2
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@@ -192,11 +192,11 @@ def sart_projection_update(cnp.double_t[:, :] image not None,
Array of same shape as ``image`` containing updates that should be
added to ``image`` to improve the reconstruction estimate
"""
cdef cnp.double_t[:, :] image_update = np.zeros_like(image)
cdef cnp.ndarray[cnp.double_t, ndim=2] image_update = np.zeros_like(image)
cdef cnp.double_t ray_position
cdef Py_ssize_t i
for i in range(projection.shape[0]):
ray_position = i + projection_shift
bilinear_ray_update(image, image_update, theta, ray_position,
projection[i])
return np.asarray(image_update)
return image_update