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DOC: Change selem.ellipse params

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This commit is contained in:
Pratap Vardhan
2014-12-16 10:40:01 +05:30
parent db7b43199d
commit 2d4a77d94e
1 changed files with 6 additions and 7 deletions
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skimage/morphology/selem.py
+6 -7
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@@ -118,16 +118,16 @@ def disk(radius, dtype=np.uint8):
return np.array((X ** 2 + Y ** 2) <= radius ** 2, dtype=dtype)
def ellipse(radius, height, dtype=np.uint8):
def ellipse(width, height, dtype=np.uint8):
"""Generates a flat, ellipse-shaped structuring element.
Every pixel along the perimeter of ellipse satisfies
the equation ``(x/radius+1)**2 + (y/height+1)**2 = 1``.
the equation ``(x/width+1)**2 + (y/height+1)**2 = 1``.
Parameters
----------
radius : int
The radius of the ellipse-shaped structuring element.
width : int
The width of the ellipse-shaped structuring element.
height : int
The height of the ellipse-shaped structuring element.
@@ -155,9 +155,8 @@ def ellipse(radius, height, dtype=np.uint8):
[0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0]], dtype=uint8)
"""
selem = np.zeros((2 * height + 1, 2 * radius + 1), dtype=dtype)
rows, cols = draw.ellipse(height, radius, height + 1, radius + 1)
selem = np.zeros((2 * height + 1, 2 * width + 1), dtype=dtype)
rows, cols = draw.ellipse(height, width, height + 1, width + 1)
selem[rows, cols] = 1
return selem