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Raise warning for sigma parameter and add to TODO for next release

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Johannes Schönberger
2013-09-16 08:48:46 +02:00
parent 06e99a537a
commit 88d84c720a
2 changed files with 16 additions and 12 deletions
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skimage/segmentation/slic_superpixels.py
+7 -3
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@@ -10,7 +10,7 @@ from skimage.segmentation._slic import _slic_cython
from skimage.color import rgb2lab
def slic(image, n_segments=100, compactness=10., max_iter=10, sigma=0,
def slic(image, n_segments=100, compactness=10., max_iter=10, sigma=None,
multichannel=True, convert2lab=True, ratio=None):
"""Segments image using k-means clustering in Color-(x,y,z) space.
@@ -80,9 +80,13 @@ def slic(image, n_segments=100, compactness=10., max_iter=10, sigma=0,
>>> segments = slic(img, n_segments=100, ratio=20)
"""
if sigma is None:
warnings.warn('Default value of keyword `sigma` changed from ``1`` '
'to ``0``.')
sigma = 0
if ratio is not None:
msg = 'Keyword `ratio` is deprecated. Use `compactness` instead.'
warnings.warn(msg)
warnings.warn('Keyword `ratio` is deprecated. Use `compactness` '
'instead.')
compactness = ratio
image = img_as_float(image)