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Add note about usage of ORB

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Johannes Schönberger
2013-11-30 10:49:43 +01:00
parent f9cfdb7e2d
commit 88f7038edb
1 changed files with 8 additions and 0 deletions
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skimage/feature/orb.py
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@@ -192,6 +192,11 @@ class ORB(FeatureDetector, DescriptorExtractor):
def extract(self, image, keypoints, scales, orientations):
"""Extract rBRIEF binary descriptors for given keypoints in image.
Note that the keypoints must be extracted using the same `downscale`
and `n_scales` parameters. Additionally, if you want to extract both
keypoints and descriptors you should use the faster
`detect_and_extract`.
Parameters
----------
image : 2D array
@@ -254,6 +259,9 @@ class ORB(FeatureDetector, DescriptorExtractor):
def detect_and_extract(self, image):
"""Detect oriented FAST keypoints and extract rBRIEF descriptors.
Note that this is faster than first calling `detect` and then
`extract`.
Parameters
----------
image : 2D array