In my previous question I learned that I had to install opencv-contrib in order to use OpenCV Python with external modules such as SIFT. In my project, however, I want to use ORB or something similar. cv2.ORB() does not work, nor does cv2.xfeatures2d.ORB_create() or any other agglutination of commands. As SO knows, OpenCV has rather poor documentation for its Python API. How do I use ORB to match features in OpenCV Python? MWE: #!/usr/bin/python2.7 import numpy as np import cv2 from matplotlib import pyplot as plt img = cv2.imread('smallburger.jpg',0) # Initiate STAR detector orb = cv2.ORB() # find the keypoints with ORB kp = orb.detect(img,None) # compute the descriptors with ORB kp, des = orb.compute(img, kp) # draw only keypoints location,not size and orientation img2 = cv2.drawKeypoints(img,kp,color=(0,255,0), flags=0) plt.imshow(img2),plt.show() CLI output: Traceback (most recent call last): File "./mwe.py", line 9, in <module> orb = cv2.ORB() AttributeError: 'module' object has no attribute 'ORB' Continue reading...
