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Attempt to fix Python 3 error

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Johannes Schönberger
2013-11-30 22:21:12 +01:00
parent 9871ed704f
commit d609eb1a80
1 changed files with 11 additions and 0 deletions
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skimage/feature/orb.py
+11
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@@ -110,6 +110,11 @@ class ORB(FeatureDetector, DescriptorExtractor):
self.fast_threshold)
keypoints = corner_peaks(fast_response, min_distance=1)
if len(keypoints) == 0:
return (np.zeros((0, 2), dtype=np.double),
np.zeros((0, ), dtype=np.double),
np.zeros((0, ), dtype=np.double))
mask = _mask_border_keypoints(octave_image.shape, keypoints,
distance=16)
keypoints = keypoints[mask]
@@ -293,6 +298,12 @@ class ORB(FeatureDetector, DescriptorExtractor):
keypoints, orientations, responses = \
self._detect_octave(octave_image)
if len(keypoints) == 0:
keypoints_list.append(keypoints)
responses_list.append(responses)
descriptors_list.append(np.zeros((0, 256), dtype=np.bool))
continue
descriptors, mask = self._extract_octave(octave_image, keypoints,
orientations)