OpenCV里学习特征匹配时 运行结果发现两张图之间关键点的连线都是直线
如图 左图的书和右图左下角的那本书是一样的 本应该这两块进行连线匹配
代码如下
import cv2
import numpy as np
from matplotlib import pyplot as plt
img1 = cv2.imread("C:/Users\Think\Desktop/sucai/box.png",0)
img2 = cv2.imread("C:/Users\Think\Desktop/sucai/box_in_scene.png",0)
def cv_show(name,img):
cv2.imshow(name, img)
cv2.waitKey(0)
cv2.destroyAllWindows()
sift = cv2.SIFT_create()
kp1, des1 = sift.detectAndCompute(img1, None)
kp2, des2 = sift.detectAndCompute(img1, None)
bf=cv2.BFMatcher()
matches=bf.knnMatch(des1,des2,k=2)
good=[]
for m,n in matches:
if m.distance<0.75*n.distance:
good.append([m])
img3=cv2.drawMatchesKnn(img1,kp1,img2,kp2,good,None,flags=2)
cv_show('img3',img3)