Python3实现多图拼接

import cv2
import numpy as np 

class matchers:
	def __init__（self）:
		self.surf = cv2.xfeatures2d.SURF_create（）
		FLANN_INDEX_KDTREE = 0
		index_params = dict（algorithm=0 trees=5）
		search_params = dict（checks=50）
		self.flann = cv2.FlannbasedMatcher（index_params search_params）

	def match（self i1 i2 direction=None）:
		imageSet1 = self.getSURFFeatures（i1）
		imageSet2 = self.getSURFFeatures（i2）
		print “Direction : “ direction
		matches = self.flann.knnMatch（
			imageSet2[‘des‘]
			imageSet1[‘des‘]
			k=2
			）
		good = []
		for i  （m n） in enumerate（matches）:
			if m.distance < 0.7*n.distance:
				good.append（（m.trainIdx m.queryIdx））

		if len（good） > 4:
			pointsCurrent = imageSet2[‘kp‘]
			pointsPrevious = imageSet1[‘kp‘]

			matchedPointsCurrent = np.float32（
				[pointsCurrent[i].pt for （__ i） in good]
			）
			matchedPointsPrev = np.float32（
				[pointsPrevious[i].pt for （i __） in good]
				）

			H s = cv2.findHomography（matchedPointsCurrent matchedPointsPrev cv2.RANSAC 4）
			return H
		return None

	def getSURFFeatures（self im）:
		gray = cv2.cvtColor（im cv2.COLOR_BGR2GRAY）
		kp des = self.surf.detectAndCompute（gray None）
		return {‘kp‘:kp ‘des‘:des}

 属性            大小     日期    时间   名称
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     目录           0  2016-11-12 06:14  Python-Multiple-Image-Stitching-master
     目录           0  2016-11-12 06:14  Python-Multiple-Image-Stitching-mastercode
     文件        1194  2016-11-12 06:14  Python-Multiple-Image-Stitching-mastercodematchers.py
     文件        4147  2016-11-12 06:14  Python-Multiple-Image-Stitching-mastercodepano.py
     目录           0  2016-11-12 06:14  Python-Multiple-Image-Stitching-mastercode xtlists
     文件          84  2016-11-12 06:14  Python-Multiple-Image-Stitching-mastercode xtlistsfiles1.txt
     文件          47  2016-11-12 06:14  Python-Multiple-Image-Stitching-mastercode xtlistsfiles2.txt
     文件          99  2016-11-12 06:14  Python-Multiple-Image-Stitching-mastercode xtlistsfiles2.txt~
     文件          59  2016-11-12 06:14  Python-Multiple-Image-Stitching-mastercode xtlistsfiles3.txt
     目录           0  2016-11-12 06:14  Python-Multiple-Image-Stitching-masterimages
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     文件       58982  2016-11-12 06:14  Python-Multiple-Image-Stitching-masterlunchroom_ultimate.jpg
     文件        2006  2016-11-12 06:14  Python-Multiple-Image-Stitching-masterREADME.md
     文件      180331  2016-11-12 06:14  Python-Multiple-Image-Stitching-master est.jpg
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