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Merge pull request #1705 from deledalle/ref_nlmeans

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DOC : add ref to nlmeans
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Emmanuelle Gouillart
2015-12-30 22:06:19 +01:00
parent 732df5fc55 cc24efbe2b
commit 33a2182e06
2 changed files with 39 additions and 2 deletions
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skimage/restoration/_nl_means_denoising.pyx
+30
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@@ -359,6 +359,11 @@ cdef inline float _integral_to_distance_2d(IMGDTYPE [:, ::] integral,
"""
References
----------
J. Darbon, A. Cunha, T.F. Chan, S. Osher, and G.J. Jensen, Fast
nonlocal filtering applied to electron cryomicroscopy, in 5th IEEE
International Symposium on Biomedical Imaging: From Nano to Macro,
2008, pp. 1331-1334.
Jacques Froment. Parameter-Free Fast Pixelwise Non-Local Means
Denoising. Image Processing On Line, 2014, vol. 4, p. 300-326.
@@ -381,6 +386,11 @@ cdef inline float _integral_to_distance_3d(IMGDTYPE [:, :, ::] integral,
"""
References
----------
J. Darbon, A. Cunha, T.F. Chan, S. Osher, and G.J. Jensen, Fast
nonlocal filtering applied to electron cryomicroscopy, in 5th IEEE
International Symposium on Biomedical Imaging: From Nano to Macro,
2008, pp. 1331-1334.
Jacques Froment. Parameter-Free Fast Pixelwise Non-Local Means
Denoising. Image Processing On Line, 2014, vol. 4, p. 300-326.
@@ -523,6 +533,16 @@ def _fast_nl_means_denoising_2d(image, int s=7, int d=13, float h=0.1):
-------
result : ndarray
Denoised image, of same shape as input image.
References
----------
J. Darbon, A. Cunha, T.F. Chan, S. Osher, and G.J. Jensen, Fast
nonlocal filtering applied to electron cryomicroscopy, in 5th IEEE
International Symposium on Biomedical Imaging: From Nano to Macro,
2008, pp. 1331-1334.
Jacques Froment. Parameter-Free Fast Pixelwise Non-Local Means
Denoising. Image Processing On Line, 2014, vol. 4, p. 300-326.
"""
if s % 2 == 0:
s += 1 # odd value for symmetric patch
@@ -623,6 +643,16 @@ def _fast_nl_means_denoising_3d(image, int s=5, int d=7, float h=0.1):
-------
result : ndarray
Denoised image, of same shape as input image.
References
----------
J. Darbon, A. Cunha, T.F. Chan, S. Osher, and G.J. Jensen, Fast
nonlocal filtering applied to electron cryomicroscopy, in 5th IEEE
International Symposium on Biomedical Imaging: From Nano to Macro,
2008, pp. 1331-1334.
Jacques Froment. Parameter-Free Fast Pixelwise Non-Local Means
Denoising. Image Processing On Line, 2014, vol. 4, p. 300-326.
"""
if s % 2 == 0:
s += 1 # odd value for symmetric patch
skimage/restoration/non_local_means.py
+9 -2
View File
@@ -69,6 +69,8 @@ def denoise_nl_means(image, patch_size=7, patch_distance=11, h=0.1,
shift, that reduces the number of operations [1]_. Therefore, this
algorithm executes faster than the classic algorith
(``fast_mode=False``), at the expense of using twice as much memory.
This implementation has been proven to be more efficient compared to
other alternatives, see e.g. [3]_.
Compared to the classic algorithm, all pixels of a patch contribute
to the distance to another patch with the same weight, no matter
@@ -84,9 +86,14 @@ def denoise_nl_means(image, patch_size=7, patch_distance=11, h=0.1,
References
----------
.. [1] Buades, A., Coll, B., & Morel, J. M. (2005, June). A non-local
algorithm for image denoising. In CVPR 2005, Vol. 2, pp. 60-65, IEEE.
algorithm for image denoising. In CVPR 2005, Vol. 2, pp. 60-65, IEEE.
.. [2] Jacques Froment. Parameter-Free Fast Pixelwise Non-Local Means
.. [2] J. Darbon, A. Cunha, T.F. Chan, S. Osher, and G.J. Jensen, Fast
nonlocal filtering applied to electron cryomicroscopy, in 5th IEEE
International Symposium on Biomedical Imaging: From Nano to Macro,
2008, pp. 1331-1334.
.. [3] Jacques Froment. Parameter-Free Fast Pixelwise Non-Local Means
Denoising. Image Processing On Line, 2014, vol. 4, p. 300-326.
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