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Fix RANSAC doctest

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Johannes Schönberger
2013-11-03 09:45:33 +01:00
parent c7378614d9
commit 41d12463fd
2 changed files with 18 additions and 15 deletions
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skimage/measure/__init__.py
-1
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@@ -23,6 +23,5 @@ __all__ = ['find_contours',
'moments_central',
'moments_normalized',
'moments_hu',
'sum_blocks',
'marching_cubes',
'mesh_surface_area']
skimage/measure/fit.py
+18 -14
View File
@@ -551,20 +551,22 @@ def ransac(data, model_class, min_samples, residual_threshold,
>>> model = EllipseModel()
>>> model.estimate(data)
>>> model._params
array([ 4.85808595e+02, 4.51492793e+02, 1.15018491e+03,
5.52428289e+00, 7.32420126e-01])
array([ -3.30354146e+03, -2.87791160e+03, 5.59062118e+03,
7.84365066e+00, 7.19203152e-01])
Estimate ellipse model using RANSAC:
>>> ransac_model, inliers = ransac(data, EllipseModel, 5, 3, max_trials=50)
>>> # ransac_model._params, inliers
Should give the correct result estimated without the faulty data::
[ 20.12762373, 29.73563061, 4.81499637, 10.4743584, 0.05217117]
[ 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37,
38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49]
>>> ransac_model._params
array([ 20.12762373, 29.73563063, 4.81499637, 10.4743584 , 0.05217117])
>>> inliers
array([False, False, False, False, True, True, True, True, True,
True, True, True, True, True, True, True, True, True,
True, True, True, True, True, True, True, True, True,
True, True, True, True, True, True, True, True, True,
True, True, True, True, True, True, True, True, True,
True, True, True, True, True], dtype=bool)
Robustly estimate geometric transformation:
@@ -578,10 +580,12 @@ def ransac(data, model_class, min_samples, residual_threshold,
>>> dst[2] = (50, 50)
>>> model, inliers = ransac((src, dst), SimilarityTransform, 2, 10)
>>> inliers
array([ 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36,
37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49])
array([False, False, False, True, True, True, True, True, True,
True, True, True, True, True, True, True, True, True,
True, True, True, True, True, True, True, True, True,
True, True, True, True, True, True, True, True, True,
True, True, True, True, True, True, True, True, True,
True, True, True, True, True], dtype=bool)
"""