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Adding example in descriptor_orb

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Ankit Agrawal
2013-09-06 02:49:37 +05:30
committed by Johannes Schönberger
parent c060df20f4
commit fe2e214385
1 changed files with 15 additions and 0 deletions
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skimage/feature/orb.py
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@@ -138,6 +138,21 @@ def descriptor_orb(image, keypoints, orientations, scales,
"ORB : An efficient alternative to SIFT and SURF"
http://www.vision.cs.chubu.ac.jp/CV-R/pdf/Rublee_iccv2011.pdf
Examples
--------
>>> from skimage.data import lena
>>> from skimage.color import rgb2gray
>>> from skimage.feature import keypoints_orb, descriptor_orb
>>> img = rgb2gray(lena())
>>> keypoints, orientations, scales = keypoints_orb(img, n_keypoints=250)
>>> keypoints.shape
(250, 2)
>>> descriptors, filtered_keypoints = descriptor_orb(img, keypoints, orientations, scales)
>>> filtered_keypoints.shape
(246, 2)
>>> descriptors.shape
(246, 256)
"""
image = np.squeeze(image)
if image.ndim != 2: