python-opencv中的特征提取

使用conda的简单安装
conda install -c menpo opencv
测试

>>> import cv2
>>> import numpy as np 
>>> img=cv2.imread('/home/SENSETIME/xiaxuesong/Pictures/Selection_004.png')
>>> sift = cv2.SIFT()
>>> kp1, des1 = sift.detectAndCompute(img, None)

特征提取的Python实现
https://blog.youkuaiyun.com/amusi1994/article/details/79591205
特征介绍：
https://blog.youkuaiyun.com/c2a2o2/article/details/70053787
https://blog.youkuaiyun.com/u011746554/article/details/70941268